Full Research

StageFR
Project No.14200119
Project NameBiodiversity-driven Nutrient Cycling and Human Well-being in Social-Ecological Systems
Abbreviated TitleEcological Recycling Project (e-REC Project)
Project LeaderOKUDA Noboru
Research AxisProgram 2: Fair Use and Management of Diverse Resources / Diversity Program
Key WordsBiodiversity, Ecosystem service, Human well-being, Nutrient balance, Watershed governance

 

○Research Subject and Objectives

Since the Anthropocene, overexploitation of basal resources due to mass production has led to disturbance of natural biogeochemical cycles of macronutrients, such as nitrogen and phosphorus, in watersheds (Sutton et al. 2013). Such nutrient imbalances have caused serious environmental problems, contributing to cultural eutrophication and water pollution (Smith and Schindler 2009). The nutrient imbalances also skew biological communities toward overwhelming superiority of nuisance species, as in the case of harmful algal blooms. The anthropogenic disturbances in the nutrient cycling result in deterioration of ecosystem services in quality and quantity through the loss of ecosystem functions provided by biodiversity (Anderson et al. 2002; Hoagland et al. 2002). At present, it has been recognized that nutrient imbalances and biodiversity loss are so common and prevalent throughout the planet, posing a risk to sustainable human development (Rockström et al. 2009). These are considered global environmental issues, while their causes and effects vary among watersheds, in which there exist a variety of social issues specific to local communities.

In the top-down oriented watershed management, in general, researchers elucidate causality of nutrient imbalances based on scientific data, while governments take institutional, technological and economic approaches based on rationality to reduce nutrient loadings for public health. However, the modern issues related to nutrient imbalances are complicated and elusive not only because much of nutrients are loaded from non-point sources such as agricultural wastes but also because a driver of nutrient resource exploitation is often remote from the source of nutrient loading. With the increasing complexity of society, the top-down oriented watershed management solely has difficulty in inclusive solution of diverse issues related to nutrient imbalances.

Researches on watershed management and governance tend to assess how institutions, technology and politics can improve environmental deterioration at the watershed scale (Abell et al. 2002; ILEC 2005), often neglecting individual and community viewpoints. By contrast, many community-based researches have regarded socioeconomic and ecological settings as constraints for local communities and neglected feedbacks from community actions to a larger social-ecological system (but see Ostrom 2007, 2009).  A limited number of researches have explicitly treated with interactions between local and watershed scales, focusing on ‘watershed’ as a spatial unit in which waters and nutrients are cycled (Bressers and Kuks 2004; RIHN Project 3-1 2007; Wada 2009). However, a common goal is needed for multi-stakeholders at multi-organization levels to be involved in the solution of diverse issues both at local and watershed scales. Expanding the concept of ‘adaptive governance of social-ecological systems’ (Folke et al. 2005) to watershed systems, we aims to develop a method of ‘adaptive watershed governance’, in which the stakeholders are involved in enhancement of three components, biodiversity, nutrient cycling and well-being, all of which are essential to social-ecological health of watershed system. For this purpose, two approaches are taken for the adaptive watershed governance: one is institutional, technological and economic (ITE) approach by governments to solve issues at watershed scale based on rationality and another social-cultural approach to empower for local environmental governance in the context of life and livelihood for local communities , in order to reduce discommunication among different stakeholders at different organization levels.

○Progress and Results in 2018

1.     Project Progress during the FR Period to Date

a)    Synoptic research as macro-scopic approach at the watershed scale

Based on synoptic monitoring for biodiversity and nutrients in the whole catchment of Yasu River, we performed a structural equation modelling to examine how human activities, especially land uses, can affect spatial pattern of water quality and biodiversity, and then got preliminary analytical results. Analytical results of synoptic questionnaire survey on subjective well-being and environmental consciousness were fed back to upstream and coastal community workshops, in which action plans will be and were discussed to empower for forest conservation and macrophyte composting, respectively.

b)    Action research as a micro-scopic community-based approach

In the middle-stream farmer community, we experimentally demonstrated that practice of winter irrigation is effective in reduction of phosphorous loading as well as in enhancement of wetland biodiversity in rice paddies. In the coastal area, we found that lagoon ecosystems have the high rate of biological P recycling, using the δ18Op analysis. In the coastal urban communities which suffer from macrophyte overgrowth, we organized stakeholder workshops to know the potential need for macrophyte resources and discuss how to promote the use of macrophyte resources, collaborating with a core project, entitled ‘Open Team Science Project’ (PI: Yasuhisa Kondoh). Such research collaboration led to an idea to develop macrophyte portal as an internet media which may be effective in facilitation of involvement by individualized urban residents in the macrophyte resource recycling. In the middle-stream and downstream farmer communities, we held Local Cooperation Seminars to share scientific knowledge on how rehabilitation of habitat networks facilitates frog and fish spawning migration. In both areas, many participants from out-communities as well as their own communities got interested in these conservation activities.

c)     Construction of an integrated model for four gears

Compiling analytical data on synoptic researches on biodiversity, nutrients and well-being, we got a preliminary result of an integrated model to visualize relationships among four components essential to social-ecological health of watershed system, based on the structural equation modelling. After completion of this project, we expect that the model will be used as a communication supporting tool for diverse stakeholders to envision the future of watershed.

d)    Formation of watershed forum in the Silang-Santa Rosa sub-watershed

In the Silang-Santa Rosa sub-watershed, groundwater issues are relevant to stakeholders because their lives and livelihoods greatly depend on groundwater resources. While sharing our assessment results on groundwater nitrogen pollution, we held a total of nine workshops for stakeholders to identify their own specific issues related to groundwater and discuss solution strategy and action plans. A watershed forum is being developed and a Stakeholders’ Assembly was co-organized with the watershed management council. In this assembly, we took scientific and emotional approaches to visualize spatial pattern of groundwater pollution on the map and to visualize connectivity among groundwater, life and livelihood using a short movie, respectively. A questionnaire survey revealed that both approaches were effective in attracting participants’ interests in groundwater issues. This assembly generated various commitments by local governments to develop and implement watershed related policies, increased knowledge and awareness of watershed issues by participants and increased interest in collaboration in watershed governance. 

 

2.     Progress since the last reporting

a)    Synoptic research as macro-scopic approach at the watershed scale

Based on synoptic monitoring for biodiversity and nutrients in the whole catchment of Yasu River, we performed a structural equation modelling to examine how human activities, especially land uses, can affect spatial pattern of water quality and biodiversity, and then got preliminary analytical results . Analytical results of synoptic questionnaire survey on subjective well-being and environmental consciousness were fed back to upstream and coastal community workshops, in which action plans will be and were discussed to empower for forest conservation and macrophyte composting, respectively.

b)    Action research as a micro-scopic community-based approach

In the middle-stream farmer community, we experimentally demonstrated that practice of winter irrigation is effective in reduction of phosphorous loading as well as in enhancement of wetland biodiversity in rice paddies. In the coastal area, we found that lagoon ecosystems have the high rate of biological P recycling, using the δ18Op analysis. In the coastal urban communities which suffer from macrophyte overgrowth, we organized stakeholder workshops to know the potential need for macrophyte resources and discuss how to promote the use of macrophyte resources, collaborating with a core project, entitled ‘Open Team Science Project’ (PI: Yasuhisa Kondoh). Such research collaboration led to an idea to develop macrophyte portal as an internet media which may be effective in facilitation of involvement by individualized urban residents in the macrophyte resource recycling. In the middle-stream and downstream farmer communities, we held Local Cooperation Seminars to share scientific knowledge on how rehabilitation of habitat networks facilitates frog and fish spawning migration. In both areas, many participants from out-communities as well as their own communities got interested in these conservation activities.

c)     Construction of an integrated model for four gears

Compiling analytical data on synoptic researches on biodiversity, nutrients and well-being, we got a preliminary result of an integrated model to visualize relationships among four components essential to social-ecological health of watershed system, based on the structural equation modelling. After completion of this project, we expect that the model will be used as a communication supporting tool for diverse stakeholders to envision the future of watershed.

d)    Formation of watershed forum in the Silang-Santa Rosa sub-watershed

In the Silang-Santa Rosa sub-watershed, groundwater issues are relevant to stakeholders because their lives and livelihoods greatly depend on groundwater resources. While sharing our assessment results on groundwater nitrogen pollution, we held a total of nine workshops for stakeholders to identify their own specific issues related to groundwater and discuss solution strategy and action plans. A watershed forum is being developed and a Stakeholders’ Assembly was co-organized with the watershed management council. In this assembly, we took scientific and emotional approaches to visualize spatial pattern of groundwater pollution on the map and to visualize connectivity among groundwater, life and livelihood using a short movie, respectively. A questionnaire survey revealed that both approaches were effective in attracting participants’ interests in groundwater issues. This assembly generated various commitments by local governments to develop and implement watershed related policies, increased knowledge and awareness of watershed issues by participants and increased interest in collaboration in watershed governance.

○Project Members

【Leader】

OKUDA Noboru ( Research Institute for Humanity and Nature,Associate Professor,Ecological Science )

【River Research Working Group】

IWATA Tomoya ( Department of Environmental Sciences, Faculty of Life and Environmental Sciences University of Yamanashi,Associate Professor,Professor Aquatic Ecology )

ISHIKAWA Naoto ( Japan Agency for Marine-Earth Science and Technology,Postdoctoral Fellow,Stream Ecology, Limnology )

ITOH Masayuki ( Graduate School of Simulation Studies University of Hyogo,Associate Professor,Forest Hydrology )

KO Chia-Ying ( National Taiwan University,Assistant Professor,Spatial Statistics )

OHTE Nobuhito ( Graduate School of Informatics, Kyoto University,Professor,Hydrology, Ecosystem Ecology )

OKANO Junichi ( Center for Ecological Research, Kyoto University,Postdoctoral Fellow,Stream Ecology, Behavioural Ecology )

OSAKA Ken’ichi ( School of Environmental Science, The University of Shiga Prefecture,Associate Professor,Forest Hydrology )

TOGASHI Hiroyuki ( Tohoku National Fisheries Research Institute, Fisheries Research Agency,Researcher,Community Ecology )

【Lake Research Working Group】

BAN Syuhei ( School of Environmental Science, The University of Shiga Prefecture,Professor,Plankton Ecology, Limnology )

INOUE Eiso ( Lake Biwa Environmental Research Institute, Shiga Prefectural,Senior Researcher,Freshwater Biology, Aquatic Entomology )

ISHIKAWA Kanako ( Lake Biwa Environmental Research Institute, Shiga Prefecture,Researcher,Environmental Microbiology. Limnology )

JIN Guangzhe ( Guangdong Ocean Universty,Researcher,Limnology )

KAGAMI Maiko ( Yokohama National University,Professor,Limnology, aquatic biology )

KAMIYA Hiroshi ( Shimane Prefectural Institute of Public Health and Environmental Science,Division Chief,Analytical Chemistry )

KATO Toshikuni ( Shimane Prefectural Institute of Public Health and Environmental Science,Researcher,Environmental Analytical Chemistry )

KUMAGAI Michio ( Lake Biwa Sigma Research Center, Ritsumeikan University,Professor,Geophysics )

MIZUNO Katsunori ( Underwater Technology Collaborative Research Center, IIS, The University of Tokyo,Assistant Professor,Underwater acoustic )

NAKANO Shin’ichi ( Center for Ecological Research, Kyoto University,Professor,Ecological Science )

NISHIHIRO Jun ( Department of Environmental Science, Faculty of Science, Toho University,Associate Professor,Conservation Ecology )

ONODERA Shin’ichi ( Graduate School of Integrated Arts and Sciences, Hiroshima University,Professor,Hydrology )

SAITO Mitsuyo ( Graduate School of Environmental and Life Science, Okayama University,Assistant Professor,Hydrology )

SAKAI Yoichiro ( Lake Biwa Environmental Research Institute Shiga Prefecture,Researcher,Limnology )

SEIKE Yasushi ( Interdisciplinary Faculty of Science and Engineering, Shimane University,Professor,Environmental Analysis )

Tomozawa Yusuke ( Department of Environmental Science, Faculty of Science, Toho University,Doctor’s course student,Underground water chemistry )

UCHII Kimiko ( School of Medicine, Osaka Ohtani University,Assistant Professor,Microbial Ecology )

WANG Kunyang ( Graduate School of Integrated Arts and Sciences, Hiroshima University,Master’s course student,Limnology )

YI Rong ( School of Environmental Science, The University of Shiga Prefecture,Doctor’s course student,Plankton Ecology, Limnology )

【Terrestrial Research Working Group】

OSONO Takashi ( Doshisha University,Professor,Ecological Science )

HIROSE Dai ( School of Pharmacy, Nihon University,Assistant Professor,Mycology )

HOBARA Satoru ( College of Agriculture, Food and Environment Sciences, Rakuno Gakuen University,Professor,Biogeochemistry )

ISHIDA Atsushi ( Center for Ecological Research, Kyoto University,Professor,Plant Ecophysiogy )

MATSUOKA Shunsuke ( Graduate School of Simulation Studies University of Hyogo,Researcher,Ecological Science )

USHIO Masayuki ( Center for Ecological Research, Kyoto University,Rresearcher,Ecosystem Ecology, Microbial Ecology )

【Analytical Research Working Group】

TAYASU Ichiro ( Research Institute for Humanity and Nature,Professor,Ecological Science )

ABDULLAH Meshal ( Graduate School of Engineering, Tohoku University,Doctor’s course student,Industrial Ecology )

AMANO Yosuke ( Tohoku National Fisheries Research Institute, Fisheries Research Agency,Technical assistant,Fish Biology Ecological Science )

FARAH Wirasenjay ( Graduate School of Engineering, Tohoku University,Master’s course student,Industrial ecology )

FUJIYOSHI Rei ( Research Institute for Humanity and Nature,Researcher,Stable Isotope Ecology )

HYODO Fujio ( Research Core for Interdisciplinary Sciences, Okayama University,Associate Professor,Forest Ecology )

IDE Jun’ichiro ( Institute of Decision Science for a Sustainable Society, Kyushu University,Assistant Professor,Forest Hydrology )

KITAZAWA Daisuke ( Institute of Industrial Science, The University of Tokyo,Associate Professor,Marine Ecosystem Engineering )

KOBAYASHI Yuki ( Graduate School of Medicine of Yamaguchi University,Lecturer,Health sciences )

KOKITA Tomoyuki ( Faculty of Marine Science and Technology, Fukui Prefectural University,Associate Professor,Ecology, Evolutionary Biology )

LIU Jiarui ( Graduate School of Engineering, Tohoku University,Doctor’s course student,Industrial ecology )

MARUO Masahiro ( School of Environmental Science, University of Shiga Prefecture,Professor,Analytic Chemistry )

MATSUBAE Kazuyo ( Graduate School of Engineering, Tohoku University,Professor,Industrial Ecology )

MINAMOTO Toshifumi ( Graduate School of Human Development and Environment, Kobe University,Associate professor,Molecular Ecology )

OMODA Azusa ( Graduate School of Engineering, Tohoku University,Researcher,Industrial ecology )

OTAKE Tsuguo ( International Coastal Research Center, Atmosphere and Ocean Research Institute, The University of Tokyo,Professor,Fish Biology Ecological Science )

PAYTAN Adina ( IMS, University of California Santa Cruz,Professor,Biogeochemistry )

SONG Uhram ( College of Applied Life Sciences, Jeju National University,Assistant Professor,Ecological Science )

Wu Qianqian ( Graduate School of Human Development and Environment, Kobe University,Doctor’s course student,Evolutionary Ecology )

YAMANAKA Hiroki ( Department of Environmental Solution Technology, Ryukoku University,Lecturer,Fish Physiology )

【Network Research Working Group】

ASANO Satoshi ( Kyoto University Graduate School of Global Environmental Studies,Assistant Professor,Regional Planning )

Okuda Kazuomi ( Shiga Prefectural Government,Lake Biwa Policy Division )

Fukui Haruo ( Omi Environmental Conservation Foundation )

SATO Yuichi ( Lake Biwa Environmental Research Institute,Researcher,Environmental Modelling )

KAWABATA Takahiro ( Omi Environmental Conservation Foundation,Assistant Section Chief,Environmental Policy )

KATAOKA Yoshitaka ( Fishery Experiment Station, Department of Agriculture and Fisheries, Shiga Perfecture,Assistant Section Chief,Fisheries Science )

KIKKO Takeshi ( Fisheries Management Division, Department of Agriculture and Fisheries, Shiga Perfecture,Assistant Section Chief,Fisheries Science )

OHTSUKA Taisuke ( Lake Biwa Museum,Curator,Algal biology )

KANAO Shigefumi ( Lake Biwa Museum,Curator,Fish Ecology )

【Human Research Working Group】

WAKITA Kenichi ( Faculty of Sociology and Social Welfare, Ryukoku University,Professor,Environmental Sociology )

FUKUSHIMA Shintaro ( Tokyo Woman’s Christian University.Department of Communication School of Arts and Sciences,Lecturer,Social Science )

HIRATSUKA Junichi ( NA,Former Director of Research Organizatio n of Nature and Humanity,Lake Science )

HIRAYAMA Naoko ( School of Environmental Science, The University of Shiga Prefecture,Assistant Professor,limnology Policy )

LAMBINO Ria Adoracion A. ( Research Institute for Humanity and Nature,Associate Professor,Environmental Governance )

KAGOHASHI Kazuki ( Institute for Social Ethics, Nanzan University,Researcher,Environmental Economics )

KASHIO Tamaki ( Lake Biwa Museum,Researcher,Rural sociology )

KONDO Yasuhisa ( Research Institute for Humanity and Nature,Associate Professor,Archaeology, GIS )

MATSUSHITA Kyohei ( Shiga University,Associate Professor,Environmental Economics )

NAKAHARA Satoe ( Research Institute for Humanity and Nature,Researcher,cultural anthropology )

NONAMI Hiroshi ( School of Sociology, Kwansei Gakuin University,Professor,Social Psychology )

OHNO Tomohiko ( Institute of Human and Social Sciences, Kanazawa University,Associate Professor,Environmental Policy )

SAIZEN Izuru ( Kyoto University Graduate School of Global Environmental Studies,Associate Professor,Regional Planning )

SAKAGAMI Masaji ( Faculty of Health Sciences, Nihon Fukushi University,Professor,Applied Economics )

SANO Shizuyo ( Faculty of Letters, Doshisha University,Professor,Historical Geography )

TAKAHASHI Takuya ( The University of Shiga Prefecture,Professor,Forest policy and planning; corporate environmentalism )

TAKEMURA Kosuke ( Shiga University,Associate Professor,Social Psychology )

TANAKA Takuya ( Environmental Partnership Office Kinki,Creative Director,Environmental Science & Technology )

TANIGUCHI Yoshimitsu ( Department of Biological Environment, Akita Prefectural Universiy,Professor,Sociology )

UCHIDA Yukiko ( Kokoro Research Center, Kyoto University,Associate Professor,Social Psychology )

YACHI Shigeo ( Center for Ecological Research, Kyoto University,Associate Professor,Theoretical Ecology )

ZHENG Yuejun ( Faculty of Cultural and Information Science, Doshisha University,Professor,Sociometrics )

【Nutrient Management Working Group】

SANTOS-BORJA Adelina ( Office of the General Manager, Laguna Lake Development Authority,Division Chief III, International Linkages and Research Developme nt Unit,Limnology Environmental Science Integrated Lake Basin Management )

MAGBANUA Francis ( Institute of Biology, College of Science, University of the Philippines Diliman,Assistant Professor,Zoobenthos Diversity )

MENDOZA Norman ( Philippine Nuclear Research Institute,Researcher,Hydrology )

PAPA Rey Donne ( Department of Biological Sciences and Research Center for the Natural Sciences, University of Santo Tomas,Assistant Professor,Plankton Ecology, Limnology )

SEVILLA Fortunato B III ( Department of Chemistry and Research Center for the Natural and Applied Sciences, University of Santo Tomas,Professor,Instrumentation and Analytical Chemistry )

【Advisory Board】

FUJITA Noboru ( Center for Restoration of Regional Nature,Director,Plant Community Ecology )

ISHII Reiichiro ( Research Institute for Humanity and Nature,Associate Professor,Theoretical Ecology )

KAWABATA Zen’ichiro ( Research Institute for Humanity and Nature,Emeritus Professor,Aquatic Ecosystem Ecology )

NAGASAKA Akiko ( Hokkaido Research Organization Forestry Research Institute,assistant section chief,Watershed Conservation )

NAKASHIZUKA Toru ( Research Institute for Humanity and Nature,Professor,Forest ecology, biodiversity )

SAKAI Shoko ( Center for Ecological Research, Kyoto University,Associate Professor,Plant Ecology )

KOBAYASHI Kunihiko ( Research Institute for Humanity and Nature,Researcher,International Environmental law )

URABE Jotaro ( Graduate School of Life Sciences, Tohoku University,Professor,Aquatic Ecology )

【Secretariat】

IKEYA Toru ( Research Institute for Humanity and Nature,Researcher,Aquatic ecology, Environmental science )

ISHIBASHI Hiroyuki ( Research Institute for Humanity and Nature,Researcher,Area study and historical study on forested areas )

ISHIDA Takuya ( Research Institute for Humanity and Nature,Researcher,Forest Environmental Science )

UEHARA Yoshitoshi ( Research Institute for Humanity and Nature,Resarch Associate,Ecology )

○Future Themes

With the reduced budget, it is not realistic to practice and compare our watershed governance across all of our study watersheds. Thus we will not conduct intensive field researches in three domestic watersheds (Hachiro Lagoon, Inba Marsh and Lake Shinji) other than Lake Biwa. Based on archives and documents, however, we will examine how governmental politics on development and environmental conservation have affected these four domestic watershed systems and how their social-ecological status have varied among these watersheds through interactions with each other, according to Advocacy Coalition Framework (ACF) as well as to Institutional Analysis and Developmental (IAD) Framework. We expect to find what is a turning point for the watershed governance to drive into the good relationship between humanity and nature through our comparison. If time and budget permit us, we may also use Social-Ecological System (SES) Framework to analyse cross-scale linkages of the natural resource governances within and between watershed systems.

Books

【Authored/Co-authored】

Okuda, N., T. Takeyama, T. Komiya, Y. Kato, Y. Okuzaki, Z. Karube, Y. Sakai, M. Hori, I. Tayasu & T. Nagata 2020 A food web and its long-term dynamics in Lake Biwa: a stable isotope approach. In: Lake Biwa: Interactions between Nature and People (2nd Edition). (Eds. Kawanabe, H. et al.). Springer Academic, Amsterdam. (in press)

Okuda, N. Watanabe,K. Fukumori, K.Nakano,S & Nakazawa,T 2014 Biodiversity in aquatic systems and environments:Lake Biwa. Springer Japan, Chiyoda-ku,Tokyo, 91pp. ISBN 978-4-431-54150-9

Okuda, N. & K. Fukumori 2013,08 Predator diversity changes the world: from gene to ecosystem. . Biodiversity in aquatic systems and environments: Lake Biwa (Okuda et al.) . Springer Japan, TOKYO, 29pp. (in Japanese)  https://link.springer.com/chapter/10.1007%2F978-4-431-54150-9_2

Okuda, N. Watanabe, K. Fukumori, S. Nakano & T. Nakazawa 2013 Biodiversity in aquatic systems and environments:Lake Biwa. Springer Japan, Chiyoda-ku,Tokyo, 91pp. ISBN 978-4-431-54150-9

【Chapters/Sections】

Minamoto, T. 2016,11 Random Mutagenesis by Error-Prone Polymerase Chain Reaction Using a Heavy Water Solvent.. Andrew Reeves (ed.) Methods in Molecular Biology. In Vitro Mutagenesis Methods and Protocols, 1498. Humana Press, pp.491-495. ISBN: 978-1493964703

Iwata, T., Mochizuki, N., Suzuki, T., Kohzu, A., Kojima, H., Fukui, M. & J. Urabe 2016,03 Roles of terrestrial carbon subsidies to aquatic community metabolism in mountain lake ecosystems. G. Kudo (ed.) Structure and function of mountain ecosystems in Japan. Biodiversity and Vulnerability to Climate Change, Ⅶ. Springer Japan, Chiyodak-ku, tokyo. Hardcover ISBN 978-4-431-55952-8

Papa, RDS, JCA Briones, DMD Papa, DT Tordesillas 2016 Earth and Life Science.. Knowing and Understanding Nature. . Abiva Publishing House, Inc., Quezon CIty, Philippines. ISBN 978-971-553-941-8.

Sano, S 2015,04 Traditional Use of Resources and Management of Littoral Environment at Lake Biwa. Bruce L. Batten & Philip C. Brown (ed.) Environment and Society in the Japanese Islands. Oregon State University Press, Oregon in USA, pp.75-95. ISBN: 9780870718014

Shibata, J., Z. Karube, Y. Sakai, T. Takeyama, I. Tayasu, Y. Satoh, S. Yachi, S. Nakano & N. Okuda 2014,05 Long-Term and Spatial Variation in the Diversity of Littoral Benthic Macroinvertebrate Fauna in Lake Biwa, Japan. Nakano, S., T. Yahara, T.Nakashizuka (ed.) Integrative Observations and Assessments. Ecological Research Monographs, Part III. Springer Japan, Chiyoda-ku,Tokyo, pp.151-166. DOI:10.1007/978-4-431-54783-9_8

Kawabata, Z., H. WuD. Kong, Y. Fukushi & J. Kubota(eds.) 2014 Our lakes:From the present towards a future perspective.. RIHN-Chine Study Series, 3. Shokadou, Kyoto, pp.192.

Sota, T., H. Kagata, Y. Ando, S. Utsumi, T. Osono 2013,08 Metagenomic appoach yields insights into fungal diversity and functioning.In:: Novel Patterns and Processes in Plants,Insects,and Fungi.. T.sota et al. (ed.) Species Diversity and Community Structure. Springer Briefs in Biology. Springer, Berlin, pp.1-23. DOI:10.1007/978-4-431-54261-2_1

Okuda, N. & K. Fukumori 2013 Predator diversity changes the world: from gene to ecosystem. Okuda et al. (ed.) Biodiversity in aquatic systems and environments. Lake Biwa. Springer Japan, Chiyoda-ku,Tokyo, pp.21-49. DOI:10.1007/978-4-431-54150-9_2

Papers

【Original Articles】

Uchida, Y., K.Takemura, & S.Fukushima, 2020 How do socio-ecological factors shape culture? Understanding the process of micro-macro interactions. Current Opinion in Psychology 32:115-119. DOI:10.1016/j.copsyc.2019.06.033 (in press)

Fukushima, S., Takemura, K., Uchida, Y., Asano, S., & Okuda, N 2020 Dual Nature of Trust Within a Community: Individual-level Effect of Trust on Well-being is Positive but its Contextual Effect is Negative. Psychologia. (in press)

Kamiya, E., U. Misako & N. OkudaDo atypical 15N and 13C enrichment in parasites result from isotope ratio variation of host tissues they are infected? 2020 . Limnology. (in press)

Oita, A., F.Wirasenjaya, J.Liu, E.Webeck, K.Matsubae 2020 Trends in the food nitrogen and phosphorus footprints for Asia’s giants: China, India, and Japan. Resources. Conservation & Recycling. (in press)

Cabanillas-Terán, N., P. Loor-Andrade, J. Marin & N. Okuda 2015,04 Algal diversity drives trophic niche partitioning between sympatric grazers in marine rocky reefs. CENTER FOR ECOLOGICAL RESEARCH NEWS, KYOTO UNIVERSITY 129:13-13. (reviewed).

Peralta, E. M., L. S. Batucan Jr., I. B. B. De Jesus, E. M. C. Triño, Y. Uehara, T. Ishida, Y. Kobayashi, C.-Y. Ko, T. Iwata, A. S. Borja, J. C. A. Briones, R. D. S. Papa, F. S. Magbanua & N. Okuda 2020 Nutrient loadings and deforestation decrease benthic macroinvertebrate diversity in an urbanised tropical stream system. Limnologica. (in press)

Rizo EZ, Xu S, Tang Q, Papa RDS, Dumont HJ, Qian SS, Han BP 2019,10 A global analysis of Cladoceran body size and its variation linking to habitat,distribution and taxonomy. Zoological Journal of the Linnean Society 187(4):1119-1130. DOI:10.1093/zoolinnean/zlz053 ISSN 0024-4082 EISSN 1096-3642

Ohba, S., K. Suzuki, Y. Sakai, J. Shibata & N. Okuda 2019,10 Effects of irrigation system alterations on the trophic position of a threatened top predator in rice-field ecosystems . Freshwater Biology 64(10):1737-1746. DOI: 10.1111/fwb.13365

Kondo,Y., A.Miyata, U.Ikeuchi, S.Nakahara, K.Nakashima, H.Ōnishi, T. Osawa, K. Ota, K.Sato, K.Ushijima, Bianca Vienni Baptista, T.Kumazawa, K.Hayashi, Y. Murayama, N..Okuda, H.Nakanishi 2019,10 Interlinking open science and community-based participatory research for socio-environmental issues. Current Opinion in Environmental Sustainability 39:54-61. DOI:10.1016/j.cosust.2019.07.001 (reviewed).

Endo, I. ,T. Kume, L. K. Kho, A. Katayama, N. Makita, H. Ikeno, J. Ide, M. Ohashi 2019,10 Spatial and temporal patterns of root dynamics in a Bornean tropical rainforest monitored using the root scanner method. Plant and Soil 1(13):323-335. DOI:10.1007/s11104-019-04203-w

Mendoza, M. U., J. C. A. Briones, M. Itoh, K. S. A. R. Padilla, J. I. Aguilar, N. Okuda & R. D. S. Papa 2019,09 Small maar lakes of Luzon Island, Philippines: their limnological status and implications on the management of tropical lakes – a review. . Philippine Journal of Science 148( (3)):559-572. DOI:http://philjournalsci.dost.gov.ph/accepted-articles/94-next-issue/vol-148-no-3-september-2019/1103-small-maar-lakes-of-luzon-island-philippines-their-limnological-status-and-implications-on-the-management-of-tropical-lakes-a-review

Lopez MLD and Papa RDS (2019). Marine and Freshwater Research 2019,08 Diversity and distribution of copepods (Class: Maxillopoda, Subclass: Copepoda) in groundwater habitats across Southeast Asia. Marine and Freshwater Research . DOI:10.1071/MF19044 ISSN 1323-1650 E-ISSN 1448-6059.

Ide,J., I. Takeda, H. Somura, Y. Mori, Y. Sakuno, Y. Yone, E. Takahashi 2019,08 Impacts of hydrological changes on nutrient transport from diffuse sources in a rural river basin, western Japan. Journal of Geophysical Research - Biogeosciences, 124(8):2565-1581. DOI:10.1029/2018JG004513

Peralta, E. M., A. E. Belen, G. R. Buenaventura, F. G. G. Cantre, K. G. R. Espiritu, J. N. A. De Vera, C. P. Perez, A. K. V. Tan, I. B. B. De Jesus, P. Palomares, J. C. A. Briones, T. Ikeya, F. S. Magbanua, R. D. S. Papa & N. Okuda 2019,07 Stream benthic macroinvertebrate assemblages reveal the importance of a recently established freshwater protected area in a tropical watershed. Pacific Science 73(3):305-320. DOI:10.2984/73.3.1

Wu, Q., K.Kawano, T.Ishikawa, M. K.Sakata, R.Nakao, M. K.Hiraiwa, , S.Tsuji, H.Yamanaka, T.Minamoto 2019,05 Habitat selection and migration of the common shrimp, Palaemon paucidens in Lake Biwa, Japan – an eDNA-based study. Environmental DNA 1(1):54-63. DOI:10.1002/edn3.6

Mendoza, M. U., Briones JCA, Itoh M, Padilla KSA, Aguilar JF, Okuda N, Papa RDS 2019,05 Small maar lakes of Luzon Island: their Limnological Status and Implications on the Management of Tropical Lakes . Philippine Journal of Science 143:565-578. (reviewed). ISSN 0031-7683  http://philjournalsci.dost.gov.ph/images/pdf/pjs_pdf/vol148no3/small_maar_lakes_of_luzon_island_.pdf

Li H, Guinto SKP, Papa RDS, Han BP, Magbanua FS, Rizo EZC, Dumont HJ, Lin QQ 2019,05 On Filipinodiaptomus Lai, Mamaril Sr. & Fernando, 1979 (Calanoida, Diaptomidae): redescription and re-allocation of the Philippine endemic Diaptomus vexillifer Brehm, 1933. Crustaceana 92(5):513-536. DOI:10.1163/15685403-00003880 ISSN: 0011-216x (Clarivate / Scopus)

Yi, R., P. Song, X. Liu, M. Maruo and S. Ban 2019,04 Differences in dissolved phosphate in shallow-lake waters as determined by spectrophotometry and ion chromatography. Limnology:1-11. DOI:10.1007/s10201-019-00574-2

Wu, Q., Y.Takami, T. Minamoto, T.Ishikawa 2019,04 The life history with seasonal migration of the lacustrine shrimp Palaemon paucidens in an ancient lake in Japan . Ecosphere 10(4):e02628. DOI:10.1002/ecs2.2628

Otake T., Y.Amano ., K.Shirai ., N.Mochioka., T.Takahashi., Chow S., H.Kurogi., Dou S., A.Yamaguchi., K.Tsukamoto 2019,03 Evalation from otolith Sr isotope ratios of possible juvenile growth areas of Japanese eels collected from the West Mariana Ridge spawning area. Fisheries Science 85(3):483-493. DOI:10.1007/s12562-019-01304-4

Bannister W, McGowan S, Santos-Borja AC, Quak J, Fong L, Mendoza M, Papa RDS, Taylor D 2019,02 Potential anthropogenic regime shifts in three freshwater lakes in Tropical East Asia. . Freshwater Biology 64(4):708-722. DOI:10.1111/fwb.13256 (Online ISSN:1365-2427)

Ide,J., N. Makita, S. Jeong, K. Yamase, M. Ohashi 2019,01 The high contribution of the coniferous canopy to the molecular diversity of dissolved organic matter in rainfall. Water, 11, 167, 2019. 11(1):167. DOI:10.3390/w11010167

Kawakami,T., T.Saito., K.Nishida., T.Yamakawa., T.Otake 2019,01 Relationships between growth traits and scale stable isotopes (δ13C, δ15N) of adult chum salmon Oncorhynchus keta in Hokkaido Japan. Journal of Applied Ichthyology 35(2):570-575. DOI:10.1111/jai.13860

Vocal, I.C.S., Perez, T.R., Magbanua, F.S. & Hernandez, M.B.M 2018,12 The use of epilithic diatom assemblages in assessing land use in Silago, Southern Leyte. Philippines. Philippine Journal of Systematic Biology 12(2):92-102.

Kondo.Y & Hayashi.K 2018,11 Contribution of Open Science to Social Issue Solution– Foresight from a Multi‐stakeholder Workshop –. NISTEP DISCUSSION PAPER (163):1-38. DOI:10.15108/dp163 (reviewed).

Matsuoka S.,Y. Suzuki, S. Hobara & T.Osono 2018,10 Fungal succession and decomposition of composted aquatic plants applied to soil. Fungal Ecology 35: 34-41. 35:34-41. DOI:10.1016/j.funeco.2018.06.005 (reviewed).

Shinohara, R., T. Iwata, Y. Ikarashi & T. Sano 25:30739–30743 2018,10 Detection of 2-aminoethylphosphonic acid in suspended particles in an ultraoligotrophic lake: a two-dimensional nuclear magnetic resonance (2D-NMR) study. Environmental Science and Pollution Research(25):30739-30743. DOI:10.1007/s11356-018-1744-5 (reviewed).

Shirai.K., T.Otake., Y.Amano., M.Kuroki., T.Ushikubo., N.T.kita., M.murayama., K.Tsukamoto., J.W.Valley ., 2018,09 Temperature and depth distribution of Japanese eel eggs estimated using otolith oxygen stable isotopes.. Geochimica et Cosmochimica Acta, 236: 373-383 236:373-383. DOI:10.1016/j.gca.2018.03.006

Saitoh, Y., T. Nakano, K.-C. Shin, J. Matsubayashi, Y. Kato, H. Amakawa, Y. Osada, C. Yoshimizu, N. Okuda, Y. Amano, H. Togashi, Y. Kurita & I. Tayasu 2018,08 Utility of Nd isotope ratio as a tracer of marine animals: regional variation in coastal seas and causal factors.. Ecosphere 9(8)(e02365). DOI:10.1002/ecs2.2365 (reviewed).

Okano, J., J. Shibata, Y. Sakai, M. Yamaguchi, M. Ohishi, Y. Goda, S. Nakano & N. Okuda 2018,08 The effect of human activities on benthic macroinvertebrate diversity in tributary lagoons surrounding Lake Biwa.. Limnology (19):199-207. DOI:DOI:10.1007/s10201-017-0530-2 (reviewed).

Mizuki, I., K.Ishida ., M.Chiwa., Y.Uehara., K.Shinozuka., A.Kume., 2018,07 Nutrient deficiency promotes male-biased apparent sex ratios at the ramet level in the dioecious plant Myrica gale var. tomentosa in oligotrophic environments in bogs. . Journal of Plant Research:1-13. DOI:10.1007/s10265-018-1056-3 (reviewed).

Mizuno, K., A. Asada, S. Ban, Y. Uehara, T. Ishida & N. Okuda 2018,07 Validation of a high-resolution acoustic imaging sonar method by estimating the biomass of submerged plants in shallow water. Ecological Informatics 46:179-184. DOI:10.1016/j.ecoinf.2018.07.002 (reviewed).

Kato, Y., Kondoh, M., Ishikawa, N.F., Togashi, H., Kohmatsu, Y., Yoshimura, M., Yoshimizu, C., Haraguchi, T.F., Osada, Y., Ohte, N., Tokuchi, N., Okuda, N., Miki, T. and Tayasu, I. 2018,05 Using food network unfolding to evaluate food-web complexity in terms of biodiversity: theory and applications. Ecology Letters 21:1065-1074. DOI:10.1111/ele.12973 (reviewed).

Ospino, M.C., H. Kojima, T. Watanabe, T. Iwata & M. Fukui 2018,04 Diversity of anaerobic arsenite‐oxidizing bacteria in low‐salt environments analyzed with a newly developed PCR‐based method.. Limnology(19):177-183. DOI:10.1007/s10201-018-0539-1 (reviewed).

Tordesillas DT, Paredes PMF, Villaruel KPE, Queneri CAAM, Ban S, Papa RDS 2018,01 Effects of food concentration on the reproductive capability of the invasive freshwater calanoid copepod Arctodiaptomus dorsalis (Marsh, 1907) from the Philippines. . Journal of Crustacean Biology 38(1):101-106. DOI:10.1093/jcbiol/rux089 (reviewed).

Ko, C.-Y., T. Iwata, J.-Y. Lee, A. Murakami, J. Okano, N. Ishikawa, Y. Sakai, I. Tayasu, M. Itoh, U. Song, H. Togashi, S. Nakano, N. Ohte & N. Okuda 2018,11 Assessing alpha and beta diversity of benthic macroinvertebrates and their environmental drivers between watersheds with different levels of habitat transformation in Japan.. Marine and Freshwater Research 61:1-9. DOI:10.1071/MF18031 (reviewed).

Wu, Q., K. Kawano, Y. Uehara, N. Okuda, M. Hongo, S. Tsuji, H. Yamanaka & T. Minamoto 2018,04 Environmental DNA reveals nonmigratory individuals of Palaemon paucidens overwintering in Lake Biwa shallow waters. Freshwater Science 37.0. DOI:10.1086/697542

Peralta, E. M., H. J. A. Guerrero, C. G. S. M. Arce, J. J. A. Domingo, M. A. Maute, M. D. S. San Miguel, E. M. C. Trino, I. B. B. De Jesus, J. C. A. Briones, F. S. Magbanua, N. Okuda, R. D. S. Papa 2018,03 Prevailing environmental conditions influence mollusk diversity and distribution around Talim Island of Laguna de Bay (Luzon Is., Philippines).. The Antoninus Journal 01:31-39.  http://theantoninus.com.ph/archives/17/

Ishida, T., Y. Uehara, T. Iwata, A. P. Cid-Andres, S. Asano, T. Ikeya, K. Osaka, J. Ide, O. L. A. Privaldos, I. B. B. De Jesus, E. M. Peralta, E. M. C. Triño, C. Ko, A. Paytan, I. Tayasu, N. Okuda 2019,04 Identification of phosphorus sources in a watershed using a phosphate oxygen isoscape approach.. Environmental Science & Technology 53(9):4707-4716. DOI:10.1021/acs.est.8b05837 (reviewed).

Okano, J., Okuda, N. 2018,02 Effects of resource-dependent cannibalism on population size distribution and individual life history in a case-bearing caddisfly. Plos One. DOI:10.1371/journal.pone.0191925 Open Access

Sato,T., J. Ide, M.A. Isa, F. Rahadian, T. Fujimoto, Y. Shimatani 2017,12 A challenge for sustainable electrification, respecting the local tradition in Ciptagelar village, West Java, Indonesia: Complementary approach with a private company.. Energy Procedia 141:368-372. (reviewed).  https://www.sciencedirect.com/science/article/pii/S1876610217354504

Sakata,K. M., N.Maki, H.Sugiyama, T.Minamoto 2017,12 Identifying a breeding habitat of a critically endangered fish, Acheilognathus typus, in a natural river in Japan. Science of Nature - Naturwissenschaften 104(100):11-12. DOI:10.1007/s00114-017-1521-1

Jo,T., H.Murakami, R.Masuda,K.M Sakata,S.Yamamoto,T.Minamoto 2017,11 Rapid degradation of longer DNA fragments enables the improved estimation of distribution and biomass using environmental DNA. Molecular Ecology Resources 17(6):e25-e33. DOI:10.1111/1755-0998.12685

Okano,J., J.Shibata, Y.Sakai, M.Yamaguchi, M.Ohishi, Y.Goda, S.Nakano, N.Okuda 2017,10 The effect of human activities on benthic macroinvertebrate diversity in tributary lagoons surrounding Lake Biwa.. Limnology 19:199-207. DOI:10.1007/s10201-017-0530-2

Uchii.K., H.Doi,H.Yamanaka,T.Minamoto 2017,10 Distinct seasonal migration patterns of Japanese native and non-native genotypes of common carp estimated by environmental DNA . Ecology and Evolution 7(20):8515-8522. DOI:10.1002/ece3.3346

Kobayashi,Y., T.Iwata, 2017,10 Nitrogen and phosphorus dynamics in a large river estimated by an in situ Lagrangian tracking approach. Freshwater Biology 62(12):1997-2007. DOI:10.1111/fwb.13044.

Itoh, M., Kojima,H. P.-C. Ho, C.-W. Chang, T.-Y. Chen, S. S.-Y. Hsiao, Kobayashi,Y. Fujibayashi,M. S.-J. Kao, C.-h. Hsieh, Fukui,M. Okuda,N. Miki,T. F.-K. Shiah 2017,09 Integrating isotopic, microbial, and modeling approaches to understand methane dynamics in a frequently disturbed deep reservoir in Taiwan. Ecological Research 32(6):861-871. DOI:10.1007/s11284-017-1502-z

Nakazawa, T., S.-Y. V. Liu, Y. Sakai, K. S. Araki, C.-H. Tsai & Okuda,N. 2017,09 Spatial genetic structure and body size divergence in endangered Gymnogobius isaza in ancient Lake Biwa. Mitochondrial DNA Part A.. DOI:10.1080/24701394.2017.1357708

Luz Boyero, Manuel A.S. Graca, T.Iwata, and other 29 authors 2017,09 Riparian plant litter quality increases with latitude. Scientific Reports 7(10562). DOI:10.1038/s41598-017-10640-3

Okano, J., Tayasu, I., Nakano, S. and Okuda, N. 2017,07 Differential responses of two ecologically similar case-bearing caddisflies species to a fish chemical cue: implication for a coexistence mechanism. Zoological Science 34:461-467. DOI:10.2108/zs160207 (reviewed).

Matsubayashi,J.,Saitoh,Y.,Osada,Y.,Uehara,Y.,Haru,J.,Sasaki,T.,Tayasu,I. 2017,07 Incremental analysis of vertebral centra can reconstruct the stable isotope chronology of teleost fishes. British Ecological Society. DOI:10.1111/2041-210X.12834 (reviewed).

Watanabe,T., Miura, T.Iwata, H. Kojima, M.Fukui 2017,07 Dominance of Sulfuritalea species in nitrate-depleted water of a stratified freshwater lake and arsenate respiration ability within the genus. Environmental Microbiology Reports 9(5):522-527. DOI:10.1111/1758-2229.12557

Okuda, N., Y. Sakai, K. Fukumori, S.-M. Yang, C. Hsieh, F.-K. Shiah. 2017,06 Food web properties of the recently constructed, deep subtropical Fei-Tsui Reservoir in comparison with the ancient Lake Biwa. Hydrobiologia in press 802(1):199-210. DOI:10.1007/s10750-017-3258-4 (reviewed).

Hashizumne,H., M.Sato, S.M.Otake, S.Ikeda,T.Yoonuan, S.Sanguankiat,T.Pongvongsa, K.moji,T.Minamoto 2017,05 Application of environmental DNA analysis for the detection of Opisthorchis viverrini DNA in water samples.. Acta Tropica 169:1-7. DOI:10.1016/j.actatropica.2017.01.008

Yamanaka,H., T.Minamoto, J.Matasuura, S.Sakurai, S.Tsuji, H.Motozawa, M.Hongo,Y.Sogo, N.Kakimi, I.Teramura, M.Sugita, M.Baba, A.Kondo 2017,04 A simple method for preserving environmental DNA in water samples at ambient temperature by addition of cationic surfactant. Limnology 18(2):233-241. DOI:10.1007/s10201-016-0508-5

Tsuji,S., M,Ushio, S.Sakurai, T. Minamoto, H.Yamanaka 2017,04 Water temperature-dependent degradation of environmental DNA and its relation to bacterial abundance . PLOS ONE 12(4). DOI:10.1371/journal.pone.0176608

Ishikawa, N.F., Chikaraishi, Y. ,Ohkouchi, N. ,Murakami,R.A. ,Tayasu, I. ,Togashi, H. , Okano, J.,Sakai, Y. , Iwata,T., Kondoh M.& Okuda,N 2017,04 Integrated trophic position decreases in more diverse communities of stream food webs.. Scientific Reports 7. DOI:10.1038/s41598-017-02155-8 (reviewed).

Minamoto, T, K Uchii, T Takahara, T Kitayoshi, S Tsuji, H Yamanaka, H Doi. 2017,03 Nuclear internal transcribed spacer-1 as a sensitive genetic marker for environmental DNA studies in common carp Cyprinus carpio. Molecular Ecology Resources 17(3):324-333. DOI:10.1111/1755-0998.12586

Koyama, M, S Yamamoto, K Ishikawa, S Ban, T Toda. 2017,03 Inhibition of anaerobic digestion by dissolved lignin derived from alkaline pre-treatment of an aquatic macrophyte.. Chemical Engineering Journal 311:55-62. DOI:10.1016/j.cej.2016.11.076 (in Japanese)

Minamoto,T., M.M.Fukuda, K.R.Katsuhara, A.Fujiwara, S.Hidaka, S.Yamamto, K.Takahashi, R.Matsuda  2017,02 Environmental DNA reflects spatial and temporal jellyfish distribution. PLOS ONE 12(2). DOI:10.1371/journal.pone.0173073

Ide, J., Ohashi, M .,Takahashi, K ., Sugiyama, Y.,Piirainen, S .,Kortelainen, P .,Fujitake, N .,Yamase, K .,Ohte, N .,Moritani, M .,Hara, M .,Finér,L . 2017,02 Spatial variations in the molecular diversity of dissolved organic matter in water moving through a boreal forest in eastern Finland.. Scientific Reports 7(42102). DOI:10.1038/srep42102.

Tsuji,S., H.Yamanaka, T. Minamoto 2017,01 Effects of water pH and proteinase K treatment on the yield of environmental DNA from water samples.. Limnology 18(1):1-8.  https://link.springer.com/article/10.1007/s10201-016-0483-x

Yamamoto, S., Masuda, R.,Sato, Y ., Sado, T.,Araki, H .,Kondoh, M ., Minamoto,T., Miya.M. 2017,01 Environmental DNA metabarcoding reveals local fish communities in a species-rich coastal sea.. Scientific Reports. DOI:10.1038/srep40368

Doi, H, K Uchii, S Matsuhashi, T Takahara, H Yamanaka, T Minamoto. 2017,01 Isopropanol precipitation method for collecting fish environmental DNA. Limnology and Oceanography: Methods 15(2). DOI:10.1002/lom3.10161

Dela Paz, ESP, GO De,Leon., ATB, Fernandez., CAF, Tan., AL ,Manuel., JVR .Villalon., CVL,Zamora., RDS Papa. 2016,12 Faunistic Survey of Philippine Freshwater Microcrustacean Zooplankton: New Locality Records and Updated Species Accounts.. Philippine Journal of Systematic Biology(10). in press (Print ISSN: 1908-6865; Online ISSN: 2508-0342)  http://www.academia.edu/32495178/Faunistic_Survey_of_Philippine_Freshwater_Microcrustacean_Zooplankton_New_Locality_Records_and_Updated_Species_Accounts

Liu, X.,Ban,S ., 2016,12 Effects of acclimatization on metabolic plasticity of Eodiaptomus japonicus (Copepoda: Calanoida) determined using an optical oxygen meter.. J Plankton Res 39(1):111-121. DOI:10.1093/plankt/fbw084

Miya, M., Minamoto,T.,Yamanaka, H.,Oka, S.,Sato, K.,Yamamoto, S.,Sado,T., Doi,H., 2016,11 Use of a filter cartridge for filtration of water samples and extraction of environmental DNA.. Journal of Visualized Experiments 117. DOI:10.3791/54741

Tordesillas, DT., NKP,Abaya., MAS,Dayo., LEB,Marquez., RDS,Papa., Ban,S ., 2016,11 Effect of temperature on life history traits of the invasive calanoid copepod Arctodiaptomus dorsalis (Marsh, 1907) from Lake Taal,. Philippines. Plankton Benthos Res. 11:1-7. DOI:10.3800/pbr.11.105

Kobayashi, Y., H. Kojima, M. Itoh, N. Okuda, M. Fukui, F.-K. Shiah. 2016,11 Abundance of planktonic methane-oxidizing bacteria in a subtropical reservoir. Plankton & Benthos Research 11(4):144-146. DOI:10.3800/pbr.11.144

Hobara, S, S Fukunaga-Yoshida, T Suzuki, S Matsumoto, T Matoh, N Ae (2016) 279: 45-52. 2016,10 Plant silicon uptake increases active aluminum minerals in root-zone soil: implications for plant influence on soil carbon. . Geoderma 279:45-52. DOI:10.1016/j.geoderma.2016.05.024

Doi, H, R Inui, Y Akamatsu, K Kanno, H Yamanaka, T Takahara, T Minamoto 2016,10 Environmental DNA analysis for estimating the abundance and biomass of stream fish.. Freshwater Biology 62(1):30-39. DOI:10.1111/fwb.12846

Yamanaka, H, H Motozawa, S Tsuji, RC Miyazawa, T Takahara, T Minamoto 2016,09 On-site filtration of water samples for environmental DNA analysis to avoid DNA degradation during transportation. Ecological Research 31(6):963-967. DOI:10.1007/s11284-016-1400-9

Briones, J. C. A., R. D. S. Papa, G. A. Cauyan, N. Mendoza & N. Okuda 2016,09 Fish diversity and trophic interactions in Lake Sampaloc (Luzon Is., Philippines). Tropical Ecology 57(3):569-581. (reviewed). ISSN 0564-3295

Ho, PC, N Okuda, T Miki, M Itoh, FK Shiah, CW Chang, SSY Hsiao, SJ Kao, M Fujibayashi CH Hsieh 2016,08 Summer profundal hypoxia determines the coupling of methanotrophic production and the pelagic food web in a subtropical reservoir.. Freshwater Biology 61:1694-1706. DOI:10.1111/fwb.12809

Kobayashi, Y., H. Kojima, M. Itoh, N. Okuda, M. Fukui, F.-K. Shiah 2016,07 Abundance of planktonic methane-oxidizing bacteria in a subtropical reservoir. . Plankton & Benthos Research 11(4):144-146. DOI:10.3800/pbr.11.144

Adorable-Asis, AGA, GA Cauyan, RC Pagulayan, FS Magbanua, RDS Papa 2016,07 The macro-gastropod communities of aquaculture-intensive lakes in the Philippines.. Molluscan Research(36):223-230. DOI:10.1080/13235818.2016.1201016 ISSN 1323-5818 (Print), 1448-6067. (Online) (ISI-SCI Indexed Journal)

Matsuhashi, S, H Doi, A Fujiwara, S Watanabe, T Minamoto 2016,06 Evaluation of the environmental DNA method for estimating distribution and biomass of submerged aquatic plants.. PLOS ONE 11(6): e0156217. DOI:10.1371/journal.pone.0156217

Ishikawa,N.F., Togashi,H., Kato, Y .,Yoshimura, M.,Kohmatsu,Y .,Yoshimizu, C .,Ogawa, N.O .,Ohte, N .,Tokuchi,N ., Ohkouchi,N .,Tayasu,I 2016,05 Terrestrial-aquatic linkage on stream food webs along a forest chronosequence: multi-isotopic evidence.. Ecology 97:1146-1158. DOI:10.1890/15-1133.1

Fujiwara, Y, T Iwata, J Urabe, S Takeda 2016,05 Life history traits and ecological conditions influencing the symbiotic relationship between the flatworm Stylochoplana pusilla and host snail Monodonta labio.. Journal of the Marine Biological Association of the United Kingdom 96(3):667-672. DOI:10.1017/S0025315415001009

Ohba, S., N. Okuda & S. Kudo 2016,05 Sexual selection of male parental care in giant water bugs.. Royal Society open science 3. DOI:10.1098/rsos.150720 (reviewed).

Tsuji, S, H Yamanaka, T Minamoto 2016,04 Effects of water pH and proteinase K treatment on the yield of environmental DNA from water samples. Limnology 18(1):1-7. DOI:10.1007/s10201-016-0483-x

Boyero, L, RG Pearson, C Hui, MO Gessner, J Perez, MA Alexandrou, MAS Graca, BJ Cardinale, RJ Albarino, M Arunachalam, LA Barmuta, AJ Boulton, A Bruder, M Callisto, E Chauvet, RG Death, D Dudgeon, AC Encalada, V Ferreira, R Figueroa, AS Flecker, JF Goncalves Jr, J Helson, T Iwata, T Jinggut, J Mathooko, C Mathuriau, C M’Erimba, MS Moretti, CM Pringle, A Ramirez, L Ratnarajah, J Rincon, CM Yule 2016,04 Biotic and abiotic variables influencing plant litter breakdown in streams: a global study. . Royal Society B: Biological Sciences:283. DOI:10.1098/rspb.2015.2664

Fujiwara, A., S. Matsuhashi, H. Doi, S. Yamamoto, T. Minamoto 2016,04 Use of environmental DNA to survey the distribution of an invasive submerged plant in ponds. Freshwater Science 35(2):000-000. DOI:10.1086/685882 (reviewed). in press

de Leon, J, H de Vera, EJ Giron, HJ Guerrero, S Chambord, A Souissi, S Souissi, RDS Papa 2016,03 Temporal variability of abundance, morphological and reproductive traits of the invasive Arctodiaptomus dorsalis (Copepoda: Calanoida: Diaptomidae) in relation to the reduction of aquaculture in Lake Taal (2008 and 2013). . Philippine Journalof Science 145(1):37-47. ISSN 0031-7683.  http://202.90.141.144/pjs/pdf/pjs%20pdf/vol145No1/pdf/temporal_variability_of_abundance_of_A_dorsalis_Final_Copy.pdf

Uchii, K., H. Doi, T. Minamoto 2016,03 A novel environmental DNA approach to quantify the cryptic invasion of non-native genotypes. Molecular Ecology Resources 16(2):415-422. DOI:10.1111/1755-0998.12460 (reviewed).

Yamanaka, H., T. Minamoto 2016,03 A novel environmental DNA approach to quantify the cryptic invasion of non-native genotypes. Molecular Ecology Resources 62:147-153. DOI:10.1016/j.ecolind.2015.11.022 (reviewed).

Akamatsu, F, Y Suzuki, Y Kato, C Yoshimizu, I Tayasu 2016,02 A comparison of freeze-dry and oven-dry preparation methods for bulk and compound-specific carbon stable isotope analyses: examples using the benthic macroinvertebrates Stenopsyche marmorata and Epeorus latifolium.. Rapid Commun Mass Spectrom(30):137-142. DOI:10.1002/rcm.7421

Kawatsu, M., G. Morimoto, M. Kagami 2016,02 Seasonal changes in the water bird community in Lake Inba; influence of floating-leaved macrophytes on habitat selection. Aquatic Botany 126:32-37. DOI:10.1016/j.aquabot.2015.06.003 (reviewed).

Ho, P.-C., N. Okuda, T. Miki, M. Itoh, F.-K. Shiah, C.-W. Chang, S. S.-Y. Hsiao, S.-J. Kao, M. Fujibayashi & C.-H. Hsieh 2016,01 Summer profundal hypoxia determines the coupling of methanotrophic production and the pelagic food web in a subtropical reservoir.. Freshwater Biology 61(10):1694-1706. (reviewed).  http://onlinelibrary.wiley.com/doi/10.1111/fwb.12809/abstract

Minamoto, T., Naka, T., Moji, K.,Maruyama, A 2016,01 Techniques for the practical collection of environmental DNA: filter selection, preservation, and extraction. Limnology 17(1):23-32. DOI:10.1007/s10201-015-0457-4 (reviewed).

Maruo, M., M. Ishimaru, Y. Azumi, Y. Kawasumi, O. Nagafuchi, H. Obata 2016,01 Comparison of soluble reactive phosphorous and orthophosphate concentrations in river waters. Limnology 17(1):7-12. DOI:10.1007/s10201-015-0463-6 (reviewed).

Jin, G., Onodera, S., Saito, M., Maruyama, Y., Hayakawa, A., Sato, T., Ota, Y. and Aritomi, D 2016,01 Vertical distribution of sediment phosphorus in Lake Hachirogata related to effect of land reclamation on phosphorus accumulation. Environmental Technology 37(4):486-494. DOI:10.1080/09593330.2015.1117043 (reviewed).

Nakamura, M., R. Masuda, K. Tsukamoto, T. Otake 2016,01 Dace and black porgy have limited temperature adaptability in non-natal osmotic environment. Progress in Oceanography 2:1-8. DOI:10.1007/s12562-015-0956-6 (reviewed).

Magbanua, FS, AM Fontanilla, PS Ong, MBM Hernandez 2016 25 years of freshwater research in the Philippines: what has been done and what to do next?. Philippine Journal of Systematic Biology.

Deborde, DDD, MBM Hernandez, FS Magbanua 2016 Benthic macroinvertebrate community as indicator of stream health: effects of land use on stream benthic macroinvertebrates.. Science Diliman 28(2):5-25.

Dela Paz, ESP, M Holynska, RDS Papa 2016 Mesocyclops and Thermocyclops (Copepoda, Cyclopidae) in the major Visayas islands (Central Philippines).. Crustaceana 89:787-809. DOI:10.1163/15685403-00003547 ISSN: 0011-216x (ISI-SCI Indexed Journal)

Kume, T, K Tsuruta, H Komatsu, Y Shinohara, A Katayama, J Ide, K Otsuki 2015,12 Difference of sap flux based stand transpiration between upper and lower slope positions in a Japanese cypress plantation watershed.. Ecohydrology 9:1105-1116. DOI:10.1002/eco.1709

Osono,T. 2015,12 Decomposing ability of diverse litter-decomposer macrofungi in subtropical,temperate,and subalpine forests.. Journal of Forest Research 20(2):272-280. DOI:10.1007/s10310-014-0475-9 (reviewed).

Matsubae, K., E. Webeck, K. Nansai, K. Nakajima, M. Tanaka, T. Nagasaka 2015,12 Hidden phosphorus flows related with non-agriculture industrial activities: A focus on steelmaking and metal surface treatment. Resources, Conservation & Recycling 105(B):360-367. DOI:10.1016/j.resconrec.2015.10.002 (reviewed).

Osono,T. 2015,12 Effects of litter type,origin of isolate, and temperature on decomposition of leaf litter by macrofungi.. Journal of Forest Research 20(1):77-84. DOI:10.1007/s10310-014-0462-1 (reviewed).

Takayanagi H., R. Asami, T. Otake, O. Abe, T. Miyajima, H. Kitagawa, Y. Iryu 2015,12 Quantitative analysis of intraspecific variations in the carbon and oxygen isotope compositions of the modern cool-temperate brachiopod Terebratulina crossei. Geochimica et Cosmochimica Acta 170:301-320. (reviewed).

Miller, M.J., E. Feunteun, J.Aoyama, S. Watanabe, M. Kuroki, R.L.-Finiger, Y. Minegishi, T. Robinet, E. Réveillac, P.-A. Gagnaire, P. Berrebi. K. Tsukamoto, T. Otake 2015,09 Biodiversity and distribution of leptocephali west of the Mascarene Plateau in the southwestern Indian Ocean. Progress in Oceanography 137:84-102. DOI:10.1016/j.pocean.2015.05.026

Nishino, H., Y. Hodoki, S. D. Thottathil, K. Ohbayashi, Y. Takao & S. Nakano 2015,09 Identification of species and genotypic compositions of Cryptomonas (Cryptophyceae) populations in the eutrophic Lake Hira, Japan, using single-cell PCR. Aquatic Ecology 49(3):263-272. DOI:10.1007/s10452-015-9520-9 (reviewed).

Feunteun,E., M.J. Miller, A. Carpentier, J.Aoyama, C. Dupuy, M. Kuroki, M. Pagono, E. Reveillac, D. Sellos, S. Watanabe, K. Tsukamoto, T. Otake 2015,09 Stable isotopic composition of anguilliform leptocephali and other food web components from west of the Mascarene Plateau. Progress in Oceanography 137:69-83. DOI:10.1016/j.pocean.2015.05.024

Hans-P. G., C. Wurzbacher, T. James, M. Kagami 2015,09 Discovery of dark matter fungi in aquatic ecosystems demands a reappraisal of the phylogeny and ecology of zoosporic fungi. Fungal Ecology 19:28-38. DOI:10.1016/j.funeco.2015.06.004 (reviewed).

Fujiwara, Y., Iwata, T., Urabe,J., Takeda,S. 2015,08 Life history traits and ecological conditions influencing the symbiotic relationship between the flatworm Stylochoplana pusilla and host snail Monodonta labio.. Journal of the Marine Biological Association of the United Kingdom 96(3):667-672. DOI:10.1017/S0025315415001009

Hagiwara, Y., S. Matsuoka, S. Hobara, A.S. Mori, D. Hirose & T. Osono 2015,08 Bleaching of leaf litter and associated fungi in subboreal and subalpine forests. Canadian Journal of Microbiology 61(10):735-743. DOI:10.1139/cjm-2015-0111 (reviewed).

Mukherjee, I., Y. Hodoki, S. Nakano 2015,08 Kinetoplastid flagellates overlooked by universal primers dominate in the oxygenated hypolimnion of Lake Biwa, Japan. FEMS Microbiology Ecology 91(8). DOI:10.1093/femsec/fiv083 (reviewed).

Tanabe, Y., Y. Okazaki, M. Yoshida, H. Matsuura, A. Kai, T. Shiratori, K. Ishida, S. Nakano, & M. M. Watanabe 2015,07 A novel alphaproteobacterial ectosymbiont promotes the growth of the hydrocarbon-rich green alga Botryococcus braunii. Scientific Reports 5(10467). DOI:10.1038/srep10467 (reviewed).

Miya, M., Y. Sato, T. Fukunaga, T. Sado, J. Y. Poulsen, K. Sato, T. Minamoto, S. Yamamoto, H. Yamanaka, H. Araki, M. Kondoh, W. Iwasaki 2015,07 MiFish, a set of universal PCR primers for metabarcoding environmental DNA from fishes: Detection of >230 subtropical marine species. Royal Society Open Science. DOI:10.1098/rsos.150088 (reviewed).

Kakioka, R., T.Kokita, H.kumada, K.Watanabe & N.Okuda 2015,07 Genomic architectue of habitat-related divegence and signature of directional selection in the body shapes of Gnathopogon fishes.. Molecular Ecology 24(16):4159-4174. DOI:10.1111/mec.13309 (reviewed).

Itoh, M., Y. Kobayashi, T.-Y. Chen, T. Tokida, M. Fukui, H. Kojima, T. Miki, I. Tayasu, F.-K. Shiah & N. Okuda 2015,07 Effect of interannual variation in winter vertical mixing on CH4 dynamics in a subtropical reservoir.. Journal of Geophysical Research: Biogeosciences 120(7):1246-1261. DOI:10.1002/2015JG002972 (reviewed).

Koizumi, N., T. Takahara, T. Minamoto, H. Doi, A. Mori, K. Watanabe, T. Takemura 2015,06 Preliminary experiment for detection method of fish inhabiting agricultural drainage canals using environmental DNA. 農業農村工学会論文集 83(3):IV_7-IV_8. DOI:10.11408/jsidre.83.IV_7 (reviewed).

Jin, G., Y. Shimizu, S. Onodera, M. Saito, K. Matsumori 2015,06 Evaluation of drought impact on groundwater recharge rate using SWAT and Hydrus models on an agricultural island in western Japan. Proceedings of the International Association of Hydrological Sciences 371:143-148. DOI:10.5194/piahs-371-143-2015 (reviewed).

Saito, M., S. Onodera, G. Hisaka, M. Tokumasu 2015,06 Evaluation for the effect of non-stationary nutrient transport on the coastal seaweed cultivation in western Japan. PIAHS 371:149-155. DOI:10.5194/piahs-371-149-2015 (reviewed).

Ide, J., H. Somura, T. Nakamura, Y. Mori, I. Takeda & K. Nishida 2015,06 Hydrological Effects on Relationships Between δ15N of River Nitrate and Land Use in a Rural River Basin, Western Japan. River Research and Applications 31:639-649. DOI:10.1002/rra.2756 (reviewed).

Shimizu, Y., S, Onodera, H. Takahashi, & K. Matsumori 2015,06 Impact analysis of the decline of agricultural land-use on flood risk and material flux in hilly and mountainous watersheds. Proceedings of the International Association of Hydrological Sciences 370:39-44. DOI:10.5194/piahs-370-39-2015 (reviewed).

Ishida, S., D. Nozaki, H.-P. Grossart, M. Kagami 2015,06 Novel basal fungal lineages from freshwater phytoplankton and lake samples. Environmental Microbiology Reports 7(3):435-441. DOI:10.1111/1758-2229.12268

Uehara, Y., Kume, A., Chiwa, M., Honoki, H., Zhang, J., Watanabe, K. 2015,05 Atmospheric Deposition and Interactions with Pinus pumila Regal Canopy on Mount Tateyama in the Northern Japanese Alps. Arctic, Antarctic, and Alpine Research 47(2):389-399. DOI:10.1657/AAAR0013-126 (reviewed).

Shimizu, Y., S, Onodera, G. Jin, G. & M. Saito 2015,05 Estimation of long term nutrient loadings into a hypereutrophic artificial lake in lowland catchment, western Japan. IAHS Publication 368:337-342. DOI:10.5194/piahs-368-337-2015 (reviewed).

Chen Y. & Zheng Y. 2015,05 Cross-National Analysis on Sensitivity to Environmental Quality and Its Change in East Asia. Advances in Applied Sociology 5(6):183-194. DOI:10.4236/aasoci.2015.56018 (reviewed).

Francis S.Magbanua, FS, CR Townsend, KJ Hageman, JJ Piggott, CD Matthaei 2015,04 Individual and combined effects of fine sediment and glyphosate herbicide on invertebrate drift and insect emergence: a stream mesocosm experiment. . Freshwater Science 35:139-151. DOI:10.1086/684363

Yamasue, E., K.Matsubae & Keiichi N. Ishihara 2015,04 Weight of Land Use for Phosphorus Fertilizer Production in Japan in Terms of Total Material Requirement. Global Environmental Research 19(1):97-104. (reviewed).

E. Webeck, K. Matsubae, K.Nakajima, K.Nansai, T.Nagasaka 2015,04 Phosphorus Flows in the Asian Region. Global Environmental Research 19(1):9-18. (reviewed).

Mori, A., T. Shiono, T. F. Haraguchi, A. Ota, D. Koide, T. Ohgue, R. Kitagawa, R. Maeshiro, T.T. Aung, T. Nakamori, Y. Hagiwara, S. Matsuoka, A. Ikeda, T. Hishi, S. Hobara, E. Mizumachi, A. Frisch, G. Thor, S. Fujii, T. Osono & L. Gustafsson 2015,04 Functional redundancy of multiple forest taxa along an elevational gradient: predicting the consequences of non-random species loss. Journal of Biogeography 42:1383-1396. DOI:10.1111/jbi.12514 (reviewed).

Doi, H., T. Takahara, T. Minamoto, S. Matsuhashi, K. Uchii, H. Yamanaka 2015,04 Droplet digital Polymerase chain reaction (PCR) outperforms real-time PCR in the detection of environmental DNA from an invasive fish species. Environmental Science &Technology 49(9):5601-5608. DOI:10.1021/acs.est.5b00253 (reviewed).

Zheng Y. 2015,03 Statistical Verification of Reliability and Validity of Opinion Poll in Japan. Yoron 115:46-50.

Hishinuma, T., T. Osono, Y. Fukasawa, J.I. Azuma, & H. Takeda 2015,03 Application of 13C NMR spectroscopy to characterize organic chemical components of decomposing coarse woody debris from different climatic regions. Annals of Forest Research 58(1):3-13. DOI:10.15287/afr.2015.356 (reviewed).

Katsumata, S., S. Hobara S, T. Osono & H. Takeda 2015,03 Mass, nitrogen content, and decomposition of woody debris in forest stands affected by excreta deposited in nesting colonies of Great Cormorant. Ecological Research 30(4):555-561. DOI:10.1007/s11284-015-1256-4 (reviewed).

Doi, H., K. Uchii, T. Takahara, S. Matsuhashi, H. Yamanaka, T. Minamoto 2015,03 Use of droplet digital PCR for estimation of fish abundance and biomass in environmental DNA surveys. PLOS ONE 10(3). DOI:10.1371/journal.pone.0122763 (reviewed).

Osono,T. 2015,02 Hyphal length in the forest floor and soil of subtropical,temperate,and subalpine forests.. Journal of Forest Reserch 20(1):69-76. DOI:10.1007/s10310-014-0461-2 (reviewed).

Osono,T. 2015,02 Diversity,resource utiliation, and phenology of fruiting bodies of litter-decomposing macrofungi.. Journal of Forest Research 20(1):60-68. DOI:10.1007/s10310-014-0459-9 (reviewed).

Ishii, N., S. Ishida, M. Kagami 2015,02 PCR primers for assessing community structure of aquatic fungi including Chytridiomycota and Cryptomycota. Fungal Ecology 13:33-43. DOI:10.1016/j.funeco.2014.08.004 (reviewed).

Fukumoto, S., A. Ushimaru T. Minamoto 2015,02 A basin-scale application of environmental DNA assessment for rare endemic species and closely related exotic species in rivers: a case study of giant salamanders in Japan. Journal of Applied Ecology 52(2):358-365. DOI:10.1111/1365-2664.12392 (reviewed).

Minamoto, T., X. Pu, J. Xie, Y. Dong, D. Wu, H. Kong, X. Yang, T. Takahara, M. N. Honjo, H. Yamanaka, Z. Kawabata 2015,01 Monitoring of fish pathogenic viruses in natural lakes in Yunnan, China. Limnology 16(1):69-77. (reviewed).

Somura, H., T. Masunaga, Y. Mori, I. Takeda, J. Ide & H. Sato 2015,01 Estimation of nutrient input by a migratory bird, Tundra Swan (Cygnus columbianus), to winter-flooded paddy fields. Agriculture, Ecosystems & Environment 199:1-9. DOI:10.1016/j.agee.2014.07.018 (reviewed).

Matsubae, K., E. Yamasue, T. Inazumi, E. Webeck, T. Miki, T. Nagasaka 2015,01 Innovations in Steelmaking Technology and Hidden Phosphorus Flows. Science of the Total Environment 542(B):1162-1168. DOI:10.1016/j.scitotenv.2015.09.107 (reviewed).

Takasu, H., M. Ushio, J. E. LeClair, & S. Nakano 2015 High contribution of Synechococcus to phytoplankton biomass in the aphotic hypolimnion in a deep freshwater lake (Lake Biwa, Japan). Aquat. Microb. Aquatic Microbial Ecology 75(1):69-79. DOI:10.3354/ame01749 (reviewed).

Kobayashi,Y., Y.Hodoki, K.Ohbayashi, N.Okuda & S.Nakano 2015 Change in bacterial community structure associated with phytoplankton succession in outdoor experimental ponds.. Plankton and Benthos Research 10(1):34-44. DOI:10.3800/pbr.10.34 (reviewed).

Takahara, T., T. Minamoto, H. Doi 2015 Effects of sample processing on the detection rate of environmental DNA from the Common Carp (Cyprinus carpio). Biological Conservation 183:64-69. DOI:10.1016/j.biocon.2014.11.014 (reviewed).

Osono,T.,J.I. Azuma & D. Hirose 2014,12 Plant species effect on the decomposition and chemical changes of leaf litter in grassland and pine and oak forest soils. Plant and Soil 376:411-421. DOI:10.1007/s11104-013-1993-5 (reviewed).

Garcia, V. O. S., R. D. S. Papa, J. C. A. Briones, N. Mendoza, N. Okuda & A. C. Diesmos 2014,12 Food habits and distribution of the Lake Taal sea snake (Hydrophis semperi Garman, 1881) and the sympatric little file snake (Acrochordus granulatus Schneider, 1799) in Lake Taal,Philippines.. Asian Herpetological Research 5(4):255-262. DOI:10.3724/SP.J.1245.2014.00255 (reviewed).

Tateno,O.,T.Osono & H. Takeda 2014,08 Beech cupules share endophytic fungi with leaves and twigs.. Mycoscience 56(3):252-256. DOI:10.1016/j.myc.2014.07.005 (reviewed).

Nishihiro, J., Y.Kato, T.Yoshida & I. Washitani 2014,07 Heterogeneous distribution of a floating-Leaved plant、Trapa japonica, in Lake Mikata, Japan, is determined by limitations on seed dispersal and harmful salinity levels.. Ecological Research 29:981-989. DOI:10.1007/s11284-014-1186-6 (reviewed).

Ishikawa, N.F., Y.Kato, H. Togashi, M. Yoshimura, C. Yoshimizu, N. Okuda & I. Tayasu 2014,07 Stable nitrogen isotopic composition of amino acids reveals food web structure in stream ecosystems.. Oecologia 175(3):911-922. DOI:10.1007/s00442-014-2936-4 (reviewed).

Kojima, H., R. Tokizawa, K. Kogure, Y. Kobayashi, M. Itoh, N. Okuda, F.-K. Shiah & M. Fukui 2014,07 Community structure of planktonic methane-oxidizing bacteria in a subtropical reservoir characterized by dominance of phylotype closely related to nitrite reducer. Scientific Reports 4:5728. (reviewed).

Osono, T., S. Matsuoka,D. Hirose, M. Uchida & H. Kanda 2014,06 Fungal colonization and decomposition of leaves and stems of Salix arctica on deglaciated moraines in high-Arctic Canada.. Polar Science 8:207-216. (reviewed).

Shirouzu, T., T.Osono & D. Hirose 2014,06 Resource utilization of wood decomposers: mycelium unclear phases and host tree species affect wood decomposition by Dacrymycetes.. Fungal Ecology 9:11-16. (reviewed).

Ishikawa, N.F.,M. Uchida, Y. Shibata & I. Tayasu 2014,05 Carbon storage reservoirs in watersheds support stream food webs via periphyton production. Ecology 95(1264):1271. DOI:10.1890/13-0976.1 (reviewed).

Kagami, M., T. Miki, G.Takimoto 2014,05 Mycoloop: chytrids in aquatic food webs. Frontiers in Microbiology 5(166). DOI:10.3389/fmicb.2014.00166 (reviewed).

Ikeda, A.,S. Matsuoka,H. Masuya, A.S. Mori,D.Hirose & T. Osono 2014,04 Comparison of the diversity,compasition,and host recurrence of xylariaceous endophytes in subtropical, cool temperate, and subboreal regions in Japan. Population Ecology 56(2):289-300. DOI:10.1007/s10144-013-0412-3 (reviewed).

Hobara, S.,T. Osono,D. Hirose,K. Noro,M. Hirota & R. Benner 2014,04 The roles of microorganisms in litter decomposition and soil formation.. Biogeochemistry 118(471):486. (reviewed).

Chiwa, M., Inoue, S., Tashiro, N., Ohgi, D., Uehara, Y., Shibata, H., Kume.A. 2014,03 Assessing the Role of Forests in Mitigating Eutrophication Downstream of Pasture During Spring Snowmelt. Hydrological Processes 29(4):615-623. DOI:10.1002/hyp.10189 (reviewed).

Hamaoka, H., A. Kaneda, N. Okuda & K. Omori 2014,01 Upwelling-like bottom intrusion enhances the pelagic-benthic coupling by a fish predator in a coastal food web. Aquatic Ecology 48(1):63-71. DOI:10.1007/s10452-013-9466-8 (reviewed).

Fukasawa,Y.,S.Katsumata, A.S. Mori, T. Osono & H. Takeda. 2014,01 Accumulation and decay dynamics of coarse woody debris in an old-growth subalpine coniferous forest in Japan.. Ecological Research 29:257-269. (reviewed).

【Review Articles】

de Leon, J, H de Vera, EJ Giron, HJ Guerrero, S Chambord, A Souissi, S Souissi, RDS Papa 2016,03 Temporal variability of abundance, morphological and reproductive traits of the invasive Arctodiaptomus dorsalis (Copepoda: Calanoida: Diaptomidae) in relation to the reduction of aquaculture in Lake Taal (2008 and 2013). . Philippine Journalof Science 145(1):37-47. ISSN 0031-7683

Ohtsuka, T 2015,02 Nursery grounds for round crucian carp, /Carassius auratus grandoculis/, in rice paddies around Lake Biwa. Nishikawa, U. & Miyashita (ed.) Social-ecological restoration in paddy-dominated landscapes. Ecological Research Monographs. Springer, Berlin Heidelberg, pp.139-164. DOI:10.1007/978-4-431-55330-4

Research Presentations

【Oral Presentation】

Takuya Takahashi, Yukiko Uchida, Hiroyuki Ishibashi, Noboru Okuda How does forest ownership influence forest-related subjective well-being? A case study in the upper Yasu River watershed, Shiga Prefecture, Japan. Society For Environmental Economics and Policy Studies 24th Annual Conference(環境経済・政策学会2019年大会), 2019.09.28-2019.09.29, 福島県福島市福島大学. (共著発表)

Aguilar, J. F., P. Cootauco, J. A. T. DE Guzman, P. A. Mauricio, C. Remperas, N. Okuda & R. D. S. Papa R Monsoon-driven variations in the vertical profile of the Seven Maar Lakes of San Pablo, Laguna: Diving deeper in the limnology of tropical maar lakes. 50th Annual Convention of the Federation of Institutions for Marine and Freshwater Sciences (FIMFS), 2018.10.24-2018.10.25, Silliman University, Dumaguete.

Fukushima, S., K. Takemura, Y. Uchida, S. Asano & N. Okuda When does mutual trust among community members lower their happiness?: Moderating effect of residential mobility. Society for Personality and Social Psychology (SPSP) Annual Convention 2020, 2020.02.27-2020.02.29, New Orleans, USA.

Oita, A., K.Katagiri, K.Matsubae Resource use, recycling, and energy emissions in Japanese system from nitrogen perspective. The 5th International Conference on Final Sinks (ICFS 2019), Expected on 10 Dec.2019., 2019.12.08-2019.12.11, Vienna, Austria.  http://www.icfs2019.org/#

Tomozawa, Y., Wang, K., M.Saito ,S. Ban, N.Okuda, S.Onodera Altitude effect of water stable isotopic ratio of ravine water and its contribution to groundwater in alluvial plains - Comparison in east and west side catchments of Lake Biwa. JpGU 2019 meeting, 2019.05.26-2019.05.30, Makuhari,Chiba.

Yachi, S., S. Asano, T. Ikeya, H. Ishibashi, T. Ishida, Y. Uehara, K. Wakita & N. Okuda Diversity of community revitalization process and its relation with biodiversity in the Yasu-River sub-watershed. Japan-Korea Rural Planning Seminar 2019 by The Association of Rural Planning, 2019.10.19, Otsu,Shiga.

Uehara Y., Okuda,N Fish nursery paddy field project. Japan-Korea Rural planning seminar2019, 2019.10.19, Otsu, Shiga.

Peralta E., Mendoza N, Belen A, Ali W, Dollete M. Pinedam LM, Zafram RA, Papa, RD & N.Okuda Pelagic food web structure of Lake Taal: Quantifying zooplanktivory of endangered and endemic Sardinella tawilis (Herre 1927) using stable isotopes. 51st Annual Convention of the Federation of Institutions for Marine and Freshwater Sciences, 2019.10.16-2019.10.18, Southern Leyte State University, Sogod, Southern Leyte, Philippines.

Takahashi, T Evidence Statements - Japan,” SINCERE (Spurring Innovations for forest eCosystem sERvices in Europe) . Learning Lab, Stream 2 (Cultural and spiritual Forest Ecosystem Services from an Asian and a European perspective), 2019.10.14, Prague, Czech Republic..

Ide,J., K. Yamase, S. Jeong, N. Makita, H. Nishimura, K. Fukushima, K. Otsuki, M. Ohashi Evaluating molecular compositions of dissolved organic matter in throughfall and soil water in coniferous and broad-leaved forests, western Japan. The 7th IWA Specialist Conference on Natural Organic Matter in Water 2019 (NOM7), 2019.10.07-2019.10.09, Hitotsubashi Hall, Tokyo.  http://iwa-nom7.org/index.html

Lambino, R., C. Muan, J. Siapno, Bonifacio, R. A. Santos-Borja & N. Okuda Social Research in Sta Rosa Watershed. Japan-Philippines Joint Workshop, 2019.09.15-2019.09.17, RIHN,Kyoto.

Borja, A S., Siapno, J., Bonifacio, Muan. C & Okuda, N. Watershed Forum: Its Depth and Significance. Japan-Philippines Joint Workshop, 2019.09.15-2019.09.17, RIHN,Kyoto.

Borja, A S., Siapno, J., Bonifacio, Muan. C & Okuda, N. From Hardwork to Heart work: Integrating Science in Empowering Communities: The Case of Brgy. Carmen, Silang Cavite. Japan-Philippines Joint Workshop, 2019.09.15-2019.09.17, RIHN, Kyoto.

Cabardo, J. A. I. V., F. C. R. Ramirez, O. L. Privaldos, Y. Uehara, T. Ishida, L. Fujiyoshi, K. Osaka, F. Magbanua, R. D. Papa & N. Okuda Quantification of soluble reactive phosphorus in the Silang-Santa Rosa subwatershed”. Philippine Association for the Advancement of Science and Technology (PhilAAST) Conference, 2019.09.11-2019.09.12, Pasay City, Philippines.

Baludo, M.Y., R.D.S. Papa, & F.S. Magbanua Diel vertical migration of zooplankton in an ultra-oligotrophic lake in the Philippines with notes on its limnology. International Conference on Tropical Limnology, 2019.08.28-2019.08.29, Bogor, Indonesia.

Nakano, S., K.-H. Chang, H. Doi, Y. Hodoki, N. Ishii, Z. Kawabata, Y. Kobayashi, P. M. Manage, Y. Nishibe, K. Ohbayashi & N. Okuda Planktonic processes and food web structure/dynamics in shallow ponds, with special reference to cyanobacterial bloom . Society of Wetland Scientists-Asia Chapter and Korean Wetlands Society Joint Meeting, 2019.08.19-2019.08.22, Suncheon City, Korea.

Kondo, Y., A. Miyata, U. Ikeuchi, S. Nakahara, K. Nakashima, H. Onishi, T. Osawa, K. Ota, K. Sato, K. Ushijima, B. V. Baptista, T. Kumazawa, K. Hayashi, Y. Murayama, N. Okuda, H. Nakanishi Interlinking open science to team-based action research for socio-environmental cases. SciTS 2019 Conference, 2019.05.20-2019.05.23, Lansing, Michigan.

Okuda, N Watershed governance: a case in the Lake Biwa Watershed. RIHN International Symposium 2019: Fair use of multiple resources in cross-scale context, 2019.07.11-2019.07.12, RIHN, Kyoto.

Oita, A., E.Webeck, K.Matsubae Trends and international trade's impact on food nitrogen and phosphorus footprints. The 10th International Conference on Industrial Ecology (ISIE 2019), 2019.07.11, Beijing, China.

Peralta E, Magbanua FS, Briones JCA, Okuda N, Papa RDS Disentangling multiple stressors and highlighting the importance of freshwater protected area in highly urbanized watersheds in the Philippines. 41st ASM of the National Academy of Science & Technology, 2019.07.10-2019.07.11, EDSA Shangri-La Plaza, Mandaluyong City,Philippine.

Mendoza MU, Aguilar JI, Padilla KSAR, Itoh M, Okuda N, Papa RDS The biogeochemical cycling of methane (CH4) in lakes Calibato, Pandin and Yambo: Implications on the lakes’ carrying capacity. 41st ASM of the National Academy of Science & Technology, 2019.07.10-2019.07.11, EDSA Shangri-La Plaza, Mandaluyong City,Philippine.

Lopez MLD, Papa RDS, Tuanmu M-N 2019 Predicting potential distribution of zooplankton species in Philippine freshwater ecosystems utilizing species distribution modeling.. 41st ASM of the National Academy of Science & Technology, 2019.07.10-2019.07.11, EDSA Shangri-La Plaza, Mandaluyong City,Philippine.

De Leon J, Biag IJL, Cusi SHL, Tan JAB, Mijares EM, Tordesillas DT, Papa RDS. Two year comparison of the growth and reproductive capacity of the invasive copepod, Arctodiaptomus dorsalis (Marsh, 1907) from a cluster of seven maar lakes in Luzon Is. (Philippines). 37th Association of Systematic Biologists of the Philippines-Symposium and Annual Meeting, 2019.05.29-2019.05.31, Western Philippines University, Palawan.

Belen AE, De Leon J, Mamerto TMP, Martinez VV, Velando MK, Briones JCA, Papa RDS Freshwater sponges (Porifera: Spongilina) of the Philippines: new locality records with notes on historical records of freshwater sponges. 37th Association of Systematic Biologists of the Philippines-Symposium and Annual Meeting, 2019.05.29-2019.05.31, Western Philippines University, Palawan.

Saito, M., Onodera, S., Tomozawa, Y., Wang, K., Ban, S., Okuda, N Evaluation for temporal variation in groundwater inflow to the lagoons connected to Lake Biwa by radon (222Rn) tracer analysis. JpGU 2019 meeting, 2019.05.26-2019.05.30, Makuhari,Chiba.

Peralta, E. M., L. S. Batucan Jr., A. E. Belen, I. B. B. De Jesus, T. Ishida, C.-Y. Ko, Y. Kobayashi, T. Ikeya, Y. Uehara, T. Iwata, A. S. Borja, J. C. A. Briones, F. S. Magbanua, R. D. S. Papa & N. Okuda Multiple stressors and protection efforts in highly urbanized watersheds in the Philippines. JpGU 2019 meeting, 2019.05.26-2019.05.30, Makuhari,Chiba.

Onodera, S., Saito, M., Jin, G., Rusydi, A., Tomozawa, Y., Wang, K., Ban, S., Okuda, N Phosphorus discharge via groundwater into the lake, based on lacustrine groundwater discharge (LGD) and alluvial plain sediment. JpGU 2019 meeting, 2019.05.26-2019.05.30, Makuhari,Chiba.

Okuda, N., Z. Karube, Y. Sakai, T. Takeyama, I. Tayasu, C. Yoshimizu & T. Nagata Biodiversity increases integrated trophic position of macroinvertebrate communities in coastal food webs: Testing the vertical diversity hypothesis. JpGU 2019 meeting, 2019.05.26-2019.05.30, Makuhari,Chiba.

Liu, X., R. Yi, M. Maruo and S. Ban Spatio-temporal dynamics of orthophosphate with implications for limitation of phytoplankton growth in north basin of Lake Biwa, Japan. JpGU 2019 meeting, 2019.05.26-2019.05.30, Makuhari,Chiba.

Ikeya, T., T. Ishida, Y. Uehara, S. Asano, I. Tayasu, N. Okuda, M. Ushio, S. Fujinaga, C.-Y. Ko, E. M. Peralta, N. F. Ishikawa & T. Iwata The analysis of the community composition of riverine bacteria and microalgae in relation to nutrient status and diversity: the case in irrigation season in the Yasu River, Japan. JpGU 2019 meeting, 2019.05.26-2019.05.30, Makuhari,Chiba.

Gregorio, J. A. N., E. M. Peralta, I. B. B. De Jesus, T. Ikeya, J. C. A. Briones, R. D. S. Papa, F. S. Magbanua & N. Okuda Benthic macroinvertebrate assemblages and water quality reflect the impacts of land use and land cover in Marikina Watershed, Philippines. JpGU 2019 meeting, 2019.05.26-2019.05.30, Makuhari,Chiba.

Ban, S., R. Yi, X. Liu, M. Maruo, M. Sudo, N. Goto, J. Murase Possibility of nutrient from littoral slope for enhancement of phytoplankton growth in north basin of Lake Biwa. JpGU 2019 meeting, 2019.05.26-2019.05.30, Makuhari,Chiba.

Oita, A., E.Webeck, K.Matsubae Food, diet and embodied nitrogen and phosphorus emission. The 13th conference of the socio-economic metabolism section of the international society for inductrial ecology (ISIE SEM 2019), 2019.05.13, Berlin, Germany.

Peralta, E.M., A.E. Belen, J.-A.N. Gregorio, I.B.B. de Jesus, N. Mendoza, T. Ishida, J.C.A. Briones, F.S. Magbanua, N. Okuda, & R.D.S. Papa Life below water in the Anthropocene: using ecological and isotopic approaches to trace human impacts in Laguna de Bay and its watersheds. NAST and DOST Luzon Regional Scientific Meeting, 2019.04.24-2019.04.25, Don Leopoldo Sison Convention Center, Alaminos, Pangasinan, Philippines.

A. Borja, J. Mistica, J. Siapno, C. Muan, R. Bonifacio and O. Privaldos Adaptive Watershed Governance: Mutual Learning Among Stakeholders. International Workshop, 2019.03.26-2019.03.29, RIHN.

J. Muan C., Lambino R Facilitated the workshop on Ground Water Issues, Risks and Stewardship in our Local Watershed. , 2019.02.09, Nutri-Asia Science Park, Cabuyao City .

Siapno,J, Mercado, EK, Bonifacio. R. Streamflow Measurement of Malindig River during Road Network Development (CALAX). , 2019.01.31.

Borja, A S., Siapno, J., Bonifacio Consultation with Brgy. Carmen Officials, DMCI,SKARMEN and Site inspection . Impact of the CALAX Project to the Malindig River System, 2019.01.24-2019.01.31, Brgy. Carmen, Silang Cavite..

A. Borja, Siapno, J and Bonifacio R A. Borja as Resource Speaker. 2019 International Conference on Social Participation and Co-management of Natural Resources for Sustainable Development. , 2019.01.20, Calamba City, Laguna.Phillippine.

Huang, J.L., N. Okuda, C.-Y. Ko “Unraveling species-area relationship and hierarchical community assemblage in river ecosystems”. 6th Taiwan-Japan Ecology Workshop, 2018.11.22-2018.11.26, National Cheng Kung University, Taiwan.

Lambino, R. Asano, S., Siapno, J., Bonifacio, R. Nakashima, H. Borja, A. & Okuda, N “Development and Environmental History of Communities in the Sta. Rosa Watershed”. Philippine Studies Conference in Japan, 2018.11.18, Hiroshima University.

Yachi, S “How to resolve the scale mismatch in watershed-scale ecosystem management: the role of community-based ecosystem restoration. PNC (Pacific Neighborhood Consortium) 2018 Annual Conference and Joint Meetings- Biodiversity Benefits to Ecosystem Service and Human Well-beings", 2018.10.27, San Francisco, USA.

Mendoza, M. U., K. S. R. Padilla, J. Aguilar, M. Itoh, N. Okuda & R. D. S. Papa “What can we learn from monitoring of methane dynamics in freshwater lake ecosystems?”. Federation of Institutions for Marine and Freshwater Sciences, 2018.10.24-2018.10.26, Silliman University, Philippines.

Mendoza, M. U., K. S. R. Padilla, J. Aguilar, M. Itoh, N. Okuda & R. D. S. Papa “What can we learn from determining methane concentrations in freshwater lake ecosystems?”. 50th Annual Convention of the Federation of Institutions for Marine and Freshwater Sciences (FIMFS), 2018.10.24-2018.10.25, Silliman University, Dumaguete.

Peralta, E. M., F. S. Magbanua, J. C. A. Briones, N. Okuda & R. D. S. Papa “Stream benthic macroinvertebrate assemblages reflect anthropogenic impacts and protection status of in the two watersheds of Laguna de Bay, Philippines". 50th Annual Convention of the Federation of Institutions for Marine and Freshwater Sciences (FIMFS), 2018.10.24-2018.10.25, Silliman University, Dumaguete.

Privaldos, O.L.A. Osaka, K. Uehara, Y. Asano, S. Fujiyoshi, Yoshimizu, L. C. Tayasu, I. Santos-Borja, A. C. Espino, M.P.B. Okuda, N. “Identification of Nitrate Sources in Groundwaters of Silang-Sta. Rosa Subwatershed". The 17th World Lake Conference, 2018.10.16-2018.10.19, Tsukuba,Ibaragi.

Lambino, R., C. Muan, J. Siapno, Ro. Bonifacio, A. Santos-Borja & N. Okuda “Governance gaps and prospects in the Sta. Rosa Wvatershed of Laguna Lake, Philippines". The 17th World Lake Conference, 2018.10.15-2018.10.19, Tsukuba,Ibaragi.

Luciano, A.J.C., P.S. Ong, & F.S. Magbanua. Benthic macroinvertebrates as indicators of stream health: effects of geothermal production fields in the Philippines. "ILTER Annual Coordinating Committee Meeting and ILTER EAP Scientific Conference,", 2018.10.14-2018.10.19, Taichung, Taiwan.

M. Saito, T. Hosono, N. Okuda & Y. Shimizu “Nutrient transportation and cycling related to hydrologic cycles in tropical and subtropical regions". Annual Meeting of Japanese Association of Hydrological Sciences 2018, 2018.10.13, RIHN.

Santos-Borja ,A.C “Progress on the Staging of Stakeholders Assembly for Santa Rosa SubBasin Stakeholders". Santa Rosa Sub Watershed Board Meeting, 2018.10.11, Silang, Cavite, Philippines.

Santos-Borja ,A.C, Siapno, J., Mistica, J.P. U “Staging of the Laguna de Bay Region wide Forum with the theme “ Climate-Smart Land Use Planning for a Sustainable and Resilient Laguna de Bay Basin”. Santa Rosa City’s initiatives and lessons learned in mainstreaming climate change adaptation in land use planning, 2018.10.11, Los Banos, Laguna, Philippines.

Yachi, S. “Restoration of the Lake Biwa ecosystem and local communities in the watershed. The 2nd Kyoto University-Universitat Hamburg Symposium 2018, 2018.10.10, Kyoto University, Kyoto.

N. Okuda, S. Onodera & S. Ban “Symposium Session: Nutrient cycling in the Lake Biwa Watershed: toward comprehensive understanding”. The Japanese Society of Limnology 83th Annual Meeting, 2018.10.08, Okayama. 8.. Organizer: . , Okayama City, October 8, 2018

Wang, K., S. Onodera, M. Saito & N. Okuda “Estimation of groundwater discharge and nutrient transport in Yasu river catchment, using SWAT model approach”. The Japanese Society of Limnology 83th Annual Meeting, 2018.10.05-2018.10.08, Okayama University, Okayama.

Yi, R., S. Ban, A. Paytan, T. Ishida, T. Ikeya, N. Okuda “Phosphorus dynamics in Lagoon lakes Yanagihira-ko and Hira-ko using oxygen isotopic composition of phosphate”. The Japanese Society of Limnology 83th Annual Meeting, 2018.10.05-2018.10.08, Okayama University, Okayama.

Kondo,Y. “Open science x civic tech to tackle with water weed issues in the Lake Biwa catchment (びわ湖の水草問題に対処するためのオープンサイエンス×シビックテック)Code for Japan Summit”. Niigata University of International and Information Studies, 2018.09.22-2018.09.23. (in Japanese) “” Septenber 22-23, 2018, Niigata University of International and Information Studies (in Japanese) (oral presentation)  https://www.slideshare.net/yaskondo/ss-116108372

Kondo,Y “Interlinking open science to community-based participatory research for socio-environmental cases”. The 3rd International Symposium on Decision Science for Future Earth: Transdicsiplinary Science in Practice, 2018.09.07, JR Hakata city.

Aguilar, J. F., K. S. A. Padilla, M. U. Mendoza, N. Okuda & R. D. S. Papa “Are the Twin Lakes’of San Pablo ‘identical’?”. The 34th Congress of International Society of Limnology, 2018.08.19-2018.08.24, Nanjing, China.

Okuda, N., T. Ishida, Y. Uehara, T. Ikeya, S. Asano, T. Iwata, C.-Y. Ko, E. Peralta, O. L. A. Privaldos, I. B. De Jesus, E. M. Triño, K. Osaka, I. Tayasu “Biodiversity and phosphorus cycling in the river ecosystem”. JpGU-AGU Joint Meeting 2018, 2018.05.20, Makuhari,Chiba.

Wang, K., M. Saito, S. Onodera, F. T. Admajaya, S. Ban, N. Okuda, Y. Shimizu “Estimation of lacustrine groundwater discharge into Biwa Lake”. JpGU-AGU Joint Meeting 2018, 2018.05.20, Makuhari,Chiba.

Onodera, S., M. Saito, S. Ban, G. Jin, Y. Tomozawa, N. Okuda “Estimation of Lacustrine Groundwater Discharge (LGD) via two paths in Lake Biwa, Japan”. JpGU-AGU Joint Meeting 2018, 2018.05.20, Makuhari,Chiba.

De Jesus, I. B. B., E. M. Peralta, P. Palomares, J. C. Briones, F. Magbanua, R. D. Papa, T. Iwata, N. Okuda “Spatial variation in phosphorus and nitrogen spiral metrics in a tropical watershed in relation to land uses”. JpGU-AGU Joint Meeting 2018, 2018.05.20, Makuhari,Chiba.

Ikeya ,T., T. Ishida, Y. Uehara, S. Asano, N. Okuda, M. Ushio, S. Fujinaga, Y. Kobayashi, C.-Y. Ko, P. M. Elfritzson, I. Tayasu, T. Iwata “The examination of environmental factors on the community composition of riverine bacteria and microalgae in an epilithon during irrigation season in the Yasu River, Japan”. JpGU-AGU Joint Meeting 2018, 2018.05.20, Makuhari,Chiba.

Peralta, E. M., C. Bacinillo, J. C. Balani, S. Basmala, E. J. S. Calalin, M. A. Calleja, J. B. Go, M. T. Gosiengfiao, F. A. Valdecañas, J.-A. Gregorio, N. Mendoza, T. Ishida, F. Magbanua, J. C. Briones, R. D. Papa, N. Okuda. “Stable Isotopes Reveal Anthropogenic Impacts on the Littoral Food Webs of Laguna de Bay, Philippines". JpGU-AGU Joint Meeting 2018, May 20, 2018.05.20, Makuhari,Chiba.

Uehara, Y., H. Takayama, Y. Kataoka, T. Kikkou, M. Nemoto, T. Kokita, T. Otake & N Okuda “Remarkable homing ability of a pelagic crucian carp “Carassius auratus grandoculis.. The 6th International Otolith Symposium,, 2018.04.15-2018.04.20, Keelung, Taiwan.

Yi, R., P. Song, M. Maruo, S. Ban, T. Ishida & N. Okuda “What is difference between orthophosphate and SRP in lake waters?”. The Japanese Society of Limnology 82th Annual Meeting, 2017.09.29, Senboku-city, Akita.

Asano,S. Wakita,K. Okuda,N. Tokito,M. Saizen,I Bio-indicators to Estimate a State of​ ​ Socio-ecological System. Special Seminar at Hue University of Agriculture and Forestry, 2017.09.08, Vietnam.

Teramura, K., M, Allen. J, Hargrove. J. D, Austin. S,Walsh. W, Porack. N, Trippel.Takata,K. Okuda,N. Yodo,T & Kitagawa,T. “Construction of Genetic Linkage Maps of the Largemouth Bass”. American Fisheries Society 147th Annual Meeting, 2017.08.20-2017.08.24, Tampa Convention Center, Florida.

Cabanillas-Terán, N., P. L. Andrade, J. Marin & Okuda,N. “Trophic niche partioning of Diadema mexicanum and Eucidaris thouarsii in rocky reef bottoms of Ecuador”. IX Congreso Mexicano de Arrecifes Coralinos, 2017.06.13-2017.06.16, Chetumal, Quintana Roo.

Peralta, E. M., J. C. A. Briones, Okuda,N. F. S. Magbanua & R. D. S. Papa. “Taxonomic Sufficiency: Implications from ecological studies on aquatic insects in Philippine watersheds”. 35th Association of Systematic Biologists of the Philippines-Symposium and Annual Meeting, 2017.05.28-2017.05.31, University of St. La Salle, Bacolod City.

De Jesus, I. B. B. Briones,J. C. A. Privaldos,O. Peralta, E. M. Uehara,Y. Ishida,T. Borja, A. S. Magbanua,F. S. Papa,R. D. S. IwataT. & Okuda,N. “Quantification of phosphorus and nitrogen uptake in a tropical freshwater ecosystem in Southeast Asia suggests N limitation”. In: Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts. JpGU-AGU Joint Meeting 2017, 2017.05.21, Makuhari,Chiba.

Ishida,T. Uehara,Y. Iwata,T. Privaldos,O. Asano,S. Ikeya,T. Osaka,K. Ide, J. Tayasu,I. & Okuda,N. “Biogeochemical cycling of phosphate in the Yasu River Watershed: Insight from oxygen isotope of phosphate”. In: Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts. JpGU-AGU Joint Meeting 2018, 2017.05.21, Makuhari,Chiba.

Osaka, K. Chishiro,S. Iwata,T. & Okuda,N. “The quantitative evaluation of bio-available particulate phosphorus discharged from Yasu River”. In: Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts. JpGU-AGU Joint Meeting 2019, 2017.05.21, Makuhari,Chiba.

Ide, J. Cid-Andres,A. P. Ishida,T. Osaka,K. Iwata,T. Hayashi, T. Akashi, M. Tayasu, I. & Okuda, N. “Comparisons of oxygen isotope ratio of phosphate in river water and rocks between two watersheds in central Japan”. In: Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts. JpGU-AGU Joint Meeting 2020, 2017.05.21, Makuhari,Chiba.

Fujinaga, S. Kobayashi, Y.Murakami A. R. Ushio,M. U. Song, Tayasu, I. Ishikawa,N. Okano,F. J. C.-Y. Ko, H. Togashi, Sakai,Y. Itoh, M. Ohte, N. Nakano,S. Iwata,T. & Okuda,N. “Bacterial community composition and richness in biofilms of the Yasu and Ado Rivers”. In: Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts. JpGU-AGU Joint Meeting 2021, 2017.05.21, Makuhari,Chiba.

Ko, C.-Y. Iwata, T. J.-Y. Lee, Murakami,A. Okano, J. Ishikawa,F. Sakai,Y. Tayasu,I. Itoh,M. U. Song, Togashi,H. Nakano, S. Ohte ,N. & Okuda,N. “Alpha and beta diversity of benthic macroinvertebrates in natural and disturbed river watersheds and their environmental driver”. In: Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts. JpGU-AGU Joint Meeting 2022, 2017.05.21, Makuhari,Chiba.

Peralta, E. M., L. Batucan, Uehara,Y. Ishida, T. Kobayashi, Y. C.-Y. Ko, Iwata,T. A. Borja, J. C. Briones, R. D. Papa, F. Magbanua & Okuda,N. “Benthic macroinvertebrates response to water quality and canopy cover of a heavily impacted tropical subwatershed”. In: Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts. JpGU-AGU Joint Meeting 2023, 2017.05.21, Makuhari,Chiba.

Onodera, S. Saito,M. Ban,S. G. Jin, Tomozawa,Y. & Okuda,N. “Spatial Variation in Lacustrine Groundwater Discharge (LGD) as a Nutrient Source in Lake Biwa, Japan”. In: Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts. JpGU-AGU Joint Meeting 2024, 2017.05.21, Makuhari,Chiba.

Trino, E. M. C., I. B. B. De Jesus, E. M. Peralta, H. Guerrero, A. Santos-Borja, F. Magbanua, J. C. Briones, R. D. Papa & Okuda ,N. “Biodiversity Assessment of Littoral Macrozoobenthos in Laguna de Bay, Philippines”. In: Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts. JpGU-AGU Joint Meeting 2025, 2017.05.21, Makuhari,Chiba.

Iwata, T.Hayashi, T. Akashi, M. Murakami, A. R. & Okuda,N. “Nitrogen and phosphorus dynamics in two Japanese river networks with contrasting watershed land use”In: Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts. . In: Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts. JpGU-AGU Joint Meeting 2026, 2017.05.21, Makuhari,Chiba.

Fujinaga, S., Kobayashi,Y. Murakami, A. R. Ushio,M. Song,U. Tayasu,I. Ishikawa,N. F. Okano,J. C.-Y. Ko, Togashi,H. Sakai,Y. Itoh,M. Ohte,N. Nakano,S. Iwata,T. & Okuda,N. “Bacterial community composition and richness in biofilms of the Yasu and Ado Rivers”In: Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts.. In: Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts. JpGU-AGU Joint Meeting 2027, 2017.05.20, Makuhari,Chiba. “

Jin, G., Saito,M. Onodera,S. Ishida,T. Okuda,N. Yi,R. Ban,S & Tomozawa,Y. Characteristic of oxygen isotope ratio of phosphate in endmember of Lake Biwa. In: Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts. JpGU-AGU Joint Meeting 2028, 2017.05.20, Makuhari,Chiba. .

Okuda, N. Toward synthesis of watershed sciences”In: Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts. JpGU-AGU Joint Meeting 2017, 2017.03.20, Makuhari,Chiba.

Triño, E. M. C., I. B. B De Jesus, E. M. Peralta, H. J. A. Guerrero, C. G. S. M. Arce, J. J. A. Domingo, M. A. Maute, M. D. S. San Miguel, J. C. A. Briones, F. S. Magbanua, A. C. Santos-Borja, R. D. S. Papa & N. Okuda Biodiversity Assessment of Littoral Macrozoobenthos in Laguna de Bay, Philippines. The 16th World Lake Conference, 2016.11.07-2016.11.11, Bali.

Okuda, N. Toward the adaptive watershed governance to enhance biodiversity-driven nutrient cycling and human well-being. The 16th World Lake Conference, 2016.11.07-2016.11.11, Bali.

Khatun, S, H Kojima, T Iwata. A novel aerobic methane production pathway in freshwater ecosystems.. The 81st Annual Meeting of the Japanese Society of Limnology, 2016.11.03-2016.11.06, Ryukyu University, Okinawa.

Asano S., K. Wakita, I. Saizen & N. Okuda Can the spawn of the Japanese brown frog (Rana japonica, Ranidae) be a local environmental index to evaluate environmentally friendly rice paddies?. , 2016.10.17-2016.10.21, Colombo.

De Jesus, IBB, JCB Briones, O Privaldos, Y Uehara, T Ishida, A Borja, F Magbanua, RDS Papa, T Iwata, N Okuda A pioneer in tropical streams: determination of phosphorus and nitrogen uptake in Silang-Santa Rosa Subwatershed, Philippines.. 48thAnnual National Convention of the Federation of Institutions for Marine and Freshwater Sciences (FIMFS), 2016.09.21-2016.09.23, University of Eastern Philippines, Catarman, Samar, Philippines.

Peralta, E., Batucan L. S. Jr., Briones, J. C. A, F. S. Magbanua, R. D. S. Papa, Magbanua F. S. & N. Okuda Benthic macroinvertebrates assemblages and biological metrics in relation to land cover and environmental factors in Silang-Santa Rosa subwatershed, Philippines. 48th Annual National Convention of the Federation of Institutions for Marine and Freshwater Sciences, 2016.09.21-2016.09.23, University of Eastern Philippines, Catarman.

Ide, J, PCA Abigail, T Ishida, I Tayasu, N Okuda. A comparison of oxygen isotope ratio of river phosphate between two watersheds with different land-use and geological compositions in central Japan. Annual meeting of Japan Society of Hydrology and Water Resources 2016, September 2016, Fukushima.

Saizen, I, S Asano, C Tiburan, M Tokito, Y Hara, N Tsutsumida. Spatial analysis of land cover configuration for sustainable water quality management in the Silang-Santa Rosa River Basin, Philippines.. 37th Asian Conference on Remote Sensing, 2016.08.17-2016.08.21, Colombo.

Okuda, N., Y. Sakai, J. Shibata, Z. Karube, Y. Kato, T. Komiya, Y. Okuzaki, M. Hori, I. Tayasu, S. Yachi, S. Nakano & T. Nagata Spatio-temporal dynamics of food webs in the ancient Lake Biwa: Causes and consequences of changing biodiversity. The 33rd Congress of the International Society of Limnology, 2016.07.31-2016.08.05, Trino, Italy.

Arce, CG, JJ Domingo, MA Maute, MS San Miguel, EM Triño, IBB De Jesus, HJ Guerrero, EM Peralta, JC Briones, RDS Papa Taxonomy and diversity of littoral macrozoobenthos in Talim Is., Laguna de Bay. 1st Philippine Symposium on Freshwater Biodiversity and Ecosystems, 2016.06.07-2016.06.09, University of Santo Tomas, Philippine.

Hernandez, MBM, KCV Buenafe, JGJ Antonio, JEC Balagtas, JL Gan, ITG Santos, NCA Tamayo, JSH Villa-Abrille, JPM Vilvestre, S Letana, FS Magbanua. 1st Philippine Symposium on Freshwater Biodiversity and Ecosystems, Manila, Philippines.. University of Santo Tomas,Philippines, 2016.06.07-2016.06.10, University of Santo Tomas,Philippine.

Magbanua, FS, AND Tueres, PQ Palomares, LS Batucan Jr., MBM Hernandez. Annual, seasonal and inter-stream variations in water quality, physical habitat and benthic macroinvertebrates in four tributary rivers of the Pantabangan Reservoir, Philippines.. 1st Philippine Symposium on Freshwater Biodiversity and Ecosystems, 2016.06.07-2016.06.10, University of Santo Tomas, Manila, Philippines.

Magbanua, FS, LS Batucan Jr. PQ Palomares, ARR Flandez, MBM Hernandez Stream macroinvertebrate community responses to contrasting land use and reduced discharge.. 1st Philippine Symposium on Freshwater Biodiversity and Ecosystems,, 2016.06.07-2016.06.10, University of Santo Tomas, Manila, Philippines.

Magbanua, FS, KA Ortizo Benthic macroinvertebrate communities and water physico-chemistry along two major rivers of Maasim, Sarangani.. 1st Philippine Symposium on Freshwater Biodiversity and Ecosystems, 2016.06.07-2016.06.10, University of Santo Tomas, Philippines.

Encina, L, TCG Bermejo, RM Madrelejos, KML Viray, EM Triño, IBB De Jesus, HJ Guerrero, EM Peralta, JC Briones, RDS Papa Spatial variability of the trophic structure of littoral zones in Laguna de Bay in association with water physicochemical parameters and nutrient levels.. 1st Philippine Symposium on Freshwater Biodiversity and Ecosystems, 2016.06.07-2016.06.09, University of Santo Tomas Philippines.

De Jesus, IBB, JCB Briones, A Borja, F Magbanua, RDS Papa, T Iwata, N Okuda Application of tracer additions for spiraling curve characterization in Silang-Santa Rosa Subwatershed, Philippines.. 1st Philippine Symposium on Freshwater Biodiversity and Ecosystems, 2016.06.07-2016.06.09, University of Santo Tomas Philippines.

Deborde, DDD, MBM Hernandez, FS Magbanua Benthic macroinvertebrate community as indicator of stream health: how land use affects stream benthic macroinvertebrates. . 1st Philippine Symposium on Freshwater Biodiversity and Ecosystems, 2016.06.07-2016.06.10, University of Santo Tomas, Manila, Philippines.

Okuda, N. Methanotrophic food webs as a carbon recycling system in lakes under climate changes (Invited talk) . The 1st Philippine Symposium on Freshwater Biodiversity and Ecosystems, 2016.06.07-2016.06.10, University of Santo Tomas, Manila,.

Kudo, S., N. Okuda, S. Ohba Male egg-caring is sexually selected in giant water bugs. ISBE2016 Conference, 28th, 2016.06.03, University of Exeter.

Saitoh, Y, T Nakano, KC Shin, K Yamashita, H Amakawa, C Yoshimizu, J Matsubayashi, Y Kato, H Togashi, Y Amano, Y Kurita, N Okuda, I Tayasu. Spatial variation of neodymium and strontiumisotope ratios of shellfish soft bodies in the coastal sea of eastern Tohoku District.. JpGU-AGU Joint Meeting 2016, 2016.05.22-2016.05.26, Makuhari,Chiba.

Chishiro, S, K Osaka, K Fujita, O Nagafuchi, N Okuda Evaluation of the source and bioavailability of particulate phosphorus in Yasu River by using sequential extraction methods.. JpGU-AGU Joint Meeting 2016, 2016.05.22-2016.05.26, Makuhari,Chiba.

Arce, CG, JJ Domingo, MA Maute, MS San Miguel, EM Trino, IBB De Jesus, HJ Guerrero, EM Peralta, JC Briones, RDS Papa Taxonomy and diversity of littoral macrozoobenthos in Talim Is., Laguna de Bay. Association of Systematics Biologists of the Philippines Annual Convention. Philippine Systematics Beyond Borders, 2016.05.19-2016.05.20, University of Santo Tomas, Philippines.

Ide, J, M Ohashi, K Koster, F Berninger, I Miura, N Makita, K Yamase, J Pumpanen, Changes in the quality of dissolved organic matter in soil water with time since last fire in a boreal forest. EGU General Assembly 2016, April 2016, Vienna, Austria.

Ide, J., H. Somura, T. Nakamura, Y. Mori, I. Takeda & K. Nishida Spatial variations in river nitrate concentration from upper toward lower reaches in the hilly and mountainous area. The 127th Annual Meeting of the Japanese Forest Society, 2016.03.27-2016.03.30, Kanagawa, Japan.

Kagami, M, D Nozaki, T Nakamura, W Hirano. Hidden diversity and host specificity of parasitic fungi infecting phytoplankton in Lake Inba.. The 63th Annual Meeting of the Ecological Society of Japan, 2016.03.24, Sendai International Center, Sendai-city, Miyagi.

Khatun, S, T Iwata, H Kojima. Aerobic methane production by planktonic microbes under phosphorus-starved condition in lakes.. The 63th Annual Meeting of the Ecological Society of Japan, 2016.03.20-2016.03.24, Sendai International Center, Sendai-city, Miyagi.

Gabaton, NMA, HGA Steiro, RMB Timbang, JB Visco, GA Cauyan, JCA Briones. A rapid assessment of the endo-parasite biodiversity of littoral fishes from the Seven Lakes of San Pablo City, Philippines.. 8th Scientific Meeting of the Philippine Society of Parasitology, 2016.03.12, Midas Hotel, Pasay City.

Arquilla, MLY, EKG Bumanlag, HMD Peñaranda, GA Cauyan, JCA Briones Acanthocephalan parasites in the gut of Oreochromis niloticus in the Seven Lakes of San Pablo City. Philippines. 8th Scientific Meeting of the Philippine Society of Parasitology, 2016.03.12, Midas Hotel, Pasay City.

Arce, CG, JJ Domingo, MA Maute, MS San Miguel, EM Triño, IBB De Jesus, HJ Guerrero, EM Peralta, JC Briones, RDS Papa. Taxonomy and diversity of littoral macrozoobenthos in Talim Is., Laguna de Bay. Science Week, Theme: Open Science and Inclusive Innovation for Resilience Building. College of Science, 2016.02.29, University of Santo Tomas, Philippines. (in Japanese)

Papa, RDS Updating our knowledge of Philippine lakes and other freshwater ecosystems:from limno-ecology to biodiversity. Seminar on Current Researches. Conservation and New Management Practices. its impact on Philippine Freshwater biota, 2016.02.18, Southern Luzon State University, Lucban, Quezon, Philippines.

Magbanua, FS, AM Fontanilla, PS Ong, MBM Hernandez. 25 years of Philippine freshwater research: what has been done and what to do next?. its impact on Philippine Freshwater biota, 2016.02.18.

Magbanua, FS Agricultural intensification and stream health: combined impacts of pesticide and sediment.. UP Biology 30th Anniversary, 2016.01.29, Institute of Biology, University of the Philippines Diliman, Quezon City, Philippines.

Kawakami, T., Y. Shimizu, G. Ogawa, T. Saito, M. Iida, N. Sugihara, S. Sato , Ueda H., Otake T Otolith stable isotope and trace element analyses to reconstruct migration history of chum salmon Oncorhynchus kata. Symposium on growth-survival paradigm in early life stages of fish: controversy,synthesis, and multidisciplinary approach, 2015.11.09-2015.11.11, Yokohama.  http://cse.fra.affrc.go.jp/takasuka/gsp/

Osono T., Matsuoka S., Hiradate S., Hobara S., Hirose D Fungi associated with the bleaching of leaf litter in a subtropical forest. Asian Mycological Congress 2015, 2015.10.07-2015.10.10, Goa University, Goa, India.

Osono, T., S. Matsuoka, Y. Nagao, T. Itioka Domatium-inhabiting fungi of eight myrmecophytic Macaranga species. Frontier in Tropical Forest Research: Progress in Joint Projects between the Forest Department Sarawak and the Japan Research Consortium for Tropical Forests in Sarawak, 2015.09.21-2015.09.22, Kuching, Malaysia.

Ide, J., H. Somura, T. Nakamura, Y. Mori, I. Takeda & K. Nishida Spatial variations in concentration and nitrogen and oxygen stable isotopes of river nitrate in a hilly and mountainous area, western Japan. The 4th International Conference on Forests and Water in a Changing Environment, 2015.07.06-2015.07.09, Kelowna, BC, Canada.

Cid, A.P.,U. Song, I. Tayasu, J. Okano, H. Togashi, N.F. Ishikawa, A. Murakami, T. Hayashi, T. Iwata , K. Osaka, S. Nakano & N. Okuda Spatial distributions of REE, heavy metals and oxygen isotope of phosphate in the Yasu river, Shiga, Japan. JpGU Meeting 2015, 2015.05.24-2015.05.28, Makuhari,Chiba.  https://confit.atlas.jp/guide/event-img/jpgu2015/03962/public/pdf?type=in

Itoh, M., Y. Kobayashi, T.-Y. Chen, T. Tokida, M. Fukui, H. Kojima, T. Miki, I. Tayasu, F.-K. Shiah & N. Okuda CH4 dynamics in a subtropical reservoir under changes climate . The 62nd ESJ Annual Meeting, 2015.03.18-2015.03.22, Kagoshima City.  http://www.esj.ne.jp/meeting/abst/62/S10-2.html

Okuda, N. What’s the methanotrophic food web?. The 62nd ESJ Annual Meeting, 2015.03.18-2015.03.22.  http://www.esj.ne.jp/meeting/abst/62/S10-1.html

Ho, P.-C., N. Okuda, M. Itoh, T. Miki, F.-K. Shiah, C.-W. Chang & C.-H. Hsieh Summer hypoxia determines the coupling of methanotrophic and pelagic foodweb. The 62nd ESJ Annual Meeting, 2015.03.18-2015.03.22, Kagoshima City.  http://www.esj.ne.jp/meeting/abst/62/S10-5.html

Sakai, Y. Application of stable isotopes in aquatic ecology and environment. The 16th international symposium on river and lake environments., 2014.08.24-2014.08.27, Chuncheon Korea.

Tayasu, I. Use of carbon-14 in terrestrial food webs. Radiocarbon Conference, 2014.08.22, Belfast.

Ishikawa, N.F., M. Yamane, Y. Miyairi, Y. Yokoyama, I. Tayasu & N. Ohkouchi Use of radiocarbon natural abundances and compound-specific isotope analyses for stream food web reserch. Radiocarbon Conference, 2014.08.21, Belfast.

Yachi, S., D. Kitazawa, S. Nakano, Y. Sakai & N. Okuda Toward the evaluation of extinction risk of Lake Biwa benthic species due to global warming. JSMB/SMB 2014, 2014.07.28-2014.08.01, Osaka.

Sakai, Y., Z. Karube, J. Shibata, T. Takeyama, I. Tayasu, S. Yachi, S. Nakano & N. Okuda The impact of land uses on benthic macroinvertebrate diversity in the coastal ecosystem of Lake Biwa”ISRLE2014. Biwa”ISRLE2014, 2014.07.24, Chuncheon, Korea.

Okuda, N., I. Tayasu, S. Nakano, M. Ito, M. Fukui, H. Kojima, K. Kogure, M. Fujibayashi, C. Maruo, P.-C. Ho, C.-W. Chang, L. Zhang, W.-H. Teng, T. Miki, C.-H. Hsieh, Y. Kobayashi, C.-C. Chang & F.-K. Shiah Methanotrophic food webs as a carbon recycling system in lakes under climate changes. The 6th EAFES International Congress, 2014.04.09-2014.04.11, Haikou, China.

【Poster Presentation】

Okuda, N., M. Milette, J. Aguilar, K. Padilla, J. Briones, R. Papa, M. Ito, M. Fujibayashi, T.-H. Tu, L.-H. Lin, P.-L. Wang, Y. Kobayashi, E. Austria, F.-K. Shiah Methanotrophic food webs in tropical lakes: a preliminary report. The 84th Annual Meeting of the Japanese Society of Limnology, 2019.09.27-2019.09.28, Kanazawa University,Kanazawa.

Wang, K., S. Onodera, M. Saito, N. Okuda & T. Okubo Estimation of groundwater recharge and phosphorus transport under different precipitation conditions in a suburban catchment, using SWAT model. JpGU-AGU Joint Meeting 2019, 2019.05.26-2019.05.30, Makuhar.Chiba.

Siapno, J. F, Santos-Borja ,A. C., Okuda, N. October The Evolution of a Hybrid Framework for Watershed Governance in Subsubwatershed Scale. The 17th World Lake Conference, 2018.10.16, Tsukuba,Ibaragi.

Peralta, E.M. C.B. Bacinillo, J.C.A. Balani, S.E. Basmala, E.J.S.S. Calalin, M.A.G. Calleja, J.B.C. Go, M.T.S. Gosiengfiao, F.A.T. Valdecañas, J.-A.N. Gregorio, N. Mendoza, T. Ishida, F.S. Magbanua, J.C. A. Briones, R.D.S. Papa, & N. Okuda Littoral food web analysis: stable isotopes reveal anthropogenic impacts on Oreochromis niloticus and its food sources in Laguna de Bay. 8th Fisheries Scientific Conference (SciCon), 2018.09.05-2018.09.06, Pasay City, Philippines.

Siapno, J., R. Bonifacio, A. Santos-Borja & N. Okuda Evolution of a hybrid framework for adaptive watershed governance in a micro-watershed scale Laguna de Bay Basin, Philippines. The 17th World Lake Conference, 2018.10.15-2018.10.19, Tsukuba,Ibaragi.

Siapno, J., R. Bonifacio, A. Santos-Borja & N. Okuda Evolution of a hybrid framework for adaptive watershed governance in a micro-watershed scale Laguna de Bay Basin, Philippines. nternational Conference: Biodiversity and Ecology Across Space and Time, 2018.08.15-2018.08.16, University Sains Malaysia, Malaysia.

Guinto, M. M. V., H. A. Guerrero, J. C. A. Briones, R. D. S. Papa, N. Okuda Zooplankton Community Structure in the Littoral Zones of Laguna de Bay reflects Land Cover and Nutrient Loading in near-shore areas. JpGU-AGU Joint Meeting 2018, 2018.05.21, Makuhari,Chiba.

Privaldos, O. L. A., K. Osaka, Y. Uehara, A. Satoshi, L. Fujiyoshi, C. Yoshimizu, I. Tayasu, A. C. Santos-Borja, M. P. B. Espino, N. Okuda Nitrate Dual-Stable Isotope Analysis Identifies Sources of Groundwater Nitrogen Pollution in the Silang-Sta. Rosa Subwatershed of Laguna de Bay. JpGU-AGU Joint Meeting 2018, 2018.05.21, Makuhari,Chiba.

Iwata, T., N. Okuda Effects of agricultural practices in rice crop systems on the diversity of periphyton and phosphorus dynamics in streams of the Yasu River watershed. JpGU-AGU Joint Meeting 2018, 2018.05.21, Makuhari,Chiba.

Yi, R., P. Song, M. Maruo, S. Ban, T. Ikeya, N. Okuda What is difference between orthophosphate and SRP in lake waters?. JpGU-AGU Joint Meeting 2018, 2018.05.21, Makuhari,Chiba.

Ishida, T., Y. Uehara, T. Ikeya, S. Asano, N. Okuda Effect of over-levee irrigation on nutrient concentration in paddy field. JpGU-AGU Joint Meeting 2018, 2018.05.21, Makuhari,Chiba.

Saito, M., S. Onodera, Y. Tomozawa, K. Wang, S. Ban, N. Okuda Observation for the groundwater inflow to the lagoons connected to Lake Biwa. JpGU-AGU Joint Meeting 2018, 2018.05.21, Makuhari,Chiba.

Uehara, Y., H. Takayama, Y. Kataoka, T. Kikkou, M. Nemoto, T. Otake, T. Kokita, N. Okuda Migration history of pelagic crucian carp Carassius auratus grandoculis endemic to Lake biwa: Reconstructed from otolith strontium stable isotope. JpGU-AGU Joint Meeting 2018, 2018.05.20, Makuhari,Chiba.

Uehara, Y., H. Takayama, Y. Kataoka, T. Kikkou, M. Nemoto, T. Kokita, T. Otake & N Okuda Remarkable homing ability of a pelagic crucian carp “Carassius auratus grandoculis” endemic to Lake Biwa: Evidence from otolith Sr stable isotope. 6th International Otolith Symposium, 2018.04.15-2018.04.20, Keelung, Taiwan.

Asano,S. Uehara,Y. Nakashima,H. Tokito,M. Saizen,I. Privaldos Osbert, Osaka,K. Okuda,N. Spatial Pattern of Ground Water Utilization in Silang-Santa Rosa Sub-watershed. JpGU-AGU Joint Meeting 2017, 2017.05.20, Makuhari Messe, Chiba, Japan.

Ikeya,T. C,-Y, Ko. E, M, Peralta. Ishida,T. Uehara,Y. Asano,S. Okuda,N. Ushio,M. Fujinaga,S. Tayasu,I. Iwata,T. The community composition and diversity of epilithicbacterium and microalgae in a Japanese river systemduring irrigation season. JpGU-AGU Joint Meeting 2017, 2017.05.20, Makuhari Messe, Chiba, Japan.

Uehara,Y. Kataoka,Y. Kikko,T. Ishida,T. Asano,S. Kobayashi,Y. Ohtake,T. Okuda,N. Migration routes of pelagic crucian carp "Carassiusauratus grandoculis" endemic to Lake Biwa reve. JpGU-AGU Joint Meeting 2017, 2017.05.20, Makuhari Messe, Chiba, Japan.

Tan, A. K. V., A. E. Belen, C. Perez, G. R. Buenaventura, E. M.Peralta, I.B. B. De Jesus, P. Palomares, J. C. Briones, Ikeya,T. ,Magbanua, F. ,R. D. Papa, Okuda N. Stream Benthic Macroinvertebrates Response to Water Quality of Urban and Rural Areas of the Marikina Watershed. Japan Geoscience Union-American Geoscience Union Joint Meeting, 2017.05.20-2017.05.24, Makuhari Messe, Chiba, Japan.  

Espiritu, K. G. R., J. N. A. De Vera, F. G. G. Cantre, E. M. Peralta, I. B. B. De Jesus, P. Palomares, J. C. Briones, Ikeya,T. ,Magbanua, F. ,R. D. Papa, Okuda, N. Land use impact on benthic macroinvertebrate assemblages in selected lotic ecosystems in a government-declared protected landscape. Japan Geoscience Union-American Geoscience Union Joint Meeting 2017, 2017.05.20-2017.05.24, Makuhari Messe, Chiba, Japan.

Kondo,Y., K.Hayashi, U.Ikeuchi, M.Kuribayashi, S.Yano, A.Kitamoto, Future of open science with society: Report on a multi-stakeholder workshop in Japan. JpGU-AGU Joint Meeting 2017, 2017.05.20-2017.05.25, Makuhari Messe, Chiba, Japan.  https://confit.atlas.jp/guide/event/jpguagu2017/subject/MGI27-P11/mysessions

Maruo, M., M. Ishimaru, Y. Azumi, K. Ohyama, H. Obata Determination of trace orthophosphate in water of Lake Biwa (Japan) by ion chromatography. Goldschmidt 2015, 2015.08.16-2015.08.21, Prague, Chezk Republic.  http://goldschmidt.info/2015/abstracts/abstractView?abstractId=3862

Osono, T., A. S. Mori, M, Uchida , H. Kanda Accumulation of carbon and nitrogen in vegetation and soils of deglaciated area and mudboils in Ellesmere Island, high-Arctic Canada.. Fourth International Symposium on the Arctic Research (ISAR-4), 2015.04.27-2015.04.30, Toyama International Conference Center, Toyama, Japan .

Sakai, Y., Z. Karube, J. Shibata, T. Takeyama, I. Tayasu, S. Yachi, S. Nakano & N. Okuda The impact of land uses on benthic macroinvertebrate diversity in the coastal ecosystem of Lake Biwa. 2015 ASLO Aquatic Science Meeting, 2015.02.22-2015.02.27, Granada, Spain.  http://www.sgmeet.com/aslo/granada2015/viewabstract.asp?AbstractID=27736

Osono, T., D. Hirose, S. Matsuoka, Y. Tanabe, M. Uchida & S. Kudou Role of environmental selections and dispersal in the composition of fungal communities in continental Antarctica.. The 36th Symposium on Polar Biology, December 2014, National Institure of Polar Research, Tokyo.

Ban, S. Q, Wu, Hishida,N. Fujita,K. Nagafuchi,O & Okuda,N. Bioaccumulation of mercury from seston to fish through the food web in Lake Biwa. ISRLE2014, 2014.08.24-2014.08.27, Chuncheon,Korea.

Sakai, Y. & N. Okuda. Intraspecific differences in vertical habitat and food utilization by crustacean zooplankton: stable isotopic evidence. ISRLE2014, 2014.08.24-2014.08.27, Chuncheon,Korea.

Cid, A.P.,U. Song, I. Tayasu, J. Okano, H. Togashi, N.F. Ishikawa, A. Murakami, T. Hayashi, T. Iwata , K. Osaka, S. Nakano & N. Okuda Tracking phosphorus sources and cycling in freshwater: stable isotope approach. JpGU-AGU Joint Meeting 2014, 2014.04.28-2014.05.02, Yokohama.

【Invited Lecture / Honorary Lecture / Panelist】

Okuda, N The adaptive watershed governance: science for society”. The 2nd Philippine Symposium on Freshwater Biodiversity and Ecosystems, 2018.12.13, University of the Philippines Diliman, Quezon.

Okuda, N. Watershed governance to enhance social-ecological health. The 17th World Lake Conference, 2018.10.15-2018.10.19, Tsukuba,Ibaragi.

Wang, K., S. Onodera, M. Saito, N. Okuda & T. Ohkubo Estimation of groundwater recharge and phosphorus transport under different precipitation conditions in Yasu river catchment. Japan Association of Hydrological Sciens, 2018.10.13, RIHN,Kyoto.

Magbanua, F.S. Health Water Ecosystems.’ Round Table Discussion.. The 3rd Philippine Young Water Professionals, 2018.09.29, Maynilad Sampaloc Business Area Office, City of Manila, Philippines..

Okuda, N. The adaptive watershed governance“linking local and global scales”. International Symposium of Future Earth, 2018.09.24, Fukuoka.

Papa, RDS. Science Publicity: Using the Web, mainstream and Social Media. . Seminar-Workshop on Technology-enhanced Teaching and Learning, 2016.11.04, College of Science, UST.

Wang, K., S. Onodera, M. Saito, N. Okuda & T. Ohkubo Estimation of groundwater recharge and phosphorus transport under different precipitation conditions in Yasu river catchment. Japan Association of Hydrological Sciens, 2018.10.13, RIHN,Kyoto.

Papa, RDS.Antonio Luna as a student of the University of Santo Tomas. Lecture delivered during the General Antonio Luna 150th Birth Anniversary. , 2016.10.29, Antonio Luna Parade Grounds (Sunken Garden), University of the Philippines Diliman.

Papa, RDS. UST-ZESL’s Contribution to Fisheries Science: Aquatic Invertebrate Researches and the Utilization of Limnological Time-Series Data to Support Sustainable Fisheries, Biodiversity and Conservation Biology of Philippine Inland Waters. 7th Fisheries Science Congress, 2016.09.29, Tagaytay International Convention Center, Tagaytay City.

Briones, JCA. EM,Peralta. The parasite checklist of Philippine fishes in comparison to mathematically-modelled host/parasite checklists from fish FISHPEST: how many parasites are there really?. The 48th Annual National Convention of the Federation of Institutions for Marine and Freshwater Sciences (FIMFS), 2016.09.21-2016.09.23, University of Eastern Philippines, Catarman, Samar, Philippines.

Papa, RDS. Lake Taal: Sustaining native biodiversity in the face of aquaculture, climate change, and non-native species. . 2016 TVPL Research Summit, 2016.08.04-2016.08.05, NDN Grand Hotel, Santo Tomas, Batangas.

Papa, RDS. Lake Taal: Sustaining native biodiversity in the face of aquaculture, climate change, and non-native species. . Partnerships for Enhanced Engagement in Research (PEER) Speakers Series, 2016.07.07, USAID Headquarters, Washington DC, USA .

Briones, JCA. Fish parasite research in the Philippines: history current state, and recommendations for future directions.. The 1st Philippine Symposium in Freshwater Biodiversity and Ecosystems, 2016.06.07-2016.06.10, University of Santo Tomas, Philippines.

Papa, RDS. Updating our knowledge of Philippine lakes and other freshwater ecosystems: from limno-ecology to biodiversity. 6th Science Lecture Series of the Biology Department, College of Arts and Sciences, 2016.02.23, Domingo Building, UE Graduate School.

Papa, RDS. Science Publicity: Using the Web, Mainstream and Social Media.. 2016 Research Fortnight: Researchers’ Forum on Enhancing Research Visibility, 2016.02.16, Tanghalang Teresita Quirino, Benavides Building,University of Santo Tomas,Philippine.

Okuda, N. Biodiversity-driven Nutrient Cycling and Human Well-being in Social-Ecological Systems. The 4th Future Earth in Asia Workshop, 2015.11.19, RIHN,Kyoto.  http://www.chikyu.ac.jp/publicity/events/etc/2015/1119.html

Okuda, N. Organization of Symposium Session "Methanotrophic food webs as a carbon recycling system". The 62nd ESJ Annual Meeting, 2015.03.21, Kagoshima.