Japan Geoscience Union Meeting 2019

Tohru Ikeya

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Speaker, Author, Co-Author

Thu. May 30, 2019 9:00 AM - 10:30 AM 201B (2F)

  • [E] Oral
  • | A (Atmospheric and Hydrospheric Sciences )
  • | A-HW Hydrology & Water Environment

[A-HW22] Materials transport and nutrient cycles in watersheds; from headwaters to coastal seas

9:15 AM - 9:30 AM

[AHW22-07] 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

*Tohru Ikeya1, Takuya Ishida1, Yoshitoshi Uehara1, Satoshi Asano2, Ichiro Tayasu1, Noboru Okuda1, Masayuki Ushio3,4,5, Shohei Fujinaga4, Chia-Ying Ko6, Elfritzson Martin Peralta7, Naoto F. Ishikawa8, Tomoya Iwata9 (1.Research Institute for Humanity and Nature, 2.Lake Biwa Environmental Research Institute, 3.Hakubi Center, Kyoto University, 4.Center for Ecological Research, Kyoto University, 5.PRESTO, Japan Science and Technology Agency, 6.National Taiwan University, 7.University of Santo Tomas, 8.Department of Biogeochemistry, Japan Agency for Marine-Earth Science and Technology, 9.Faculty of Life and Environmental Sciences, Yamanashi University)

9:30 AM - 9:45 AM

[AHW22-08] Multiple stressors and protection efforts in highly urbanized watersheds in the Philippines

*Elfritzson M. Peralta1,3, Leocris S. Batucan Jr.4,6, Alexis E. Belen2,3, Irisse Bianca B. De Jesus1,3, Takuya Ishida5, Chia-Ying Ko7, Yuki Kobayashi5, Tohru Ikeya5, Yoshitoshi Uehara5, Tomoya Iwata8, Adelina S. Borja9, Jonathan Carlo A. Briones1,2,3, Francis S. Magbanua4, Rey Donne S. Papa1,2,3, Noboru Okuda5 (1.Research Center for the Natural and Applied Sciences, University of Santo Tomas, PH, 2.Department of Biological Sciences, University of Santo Tomas, PH, 3.The Graduate School, University of Santo Tomas, PH, 4.Institute of Biology, University of the Philippines Diliman, PH, 5.Research Institute for Humanity and Nature, JP, 6.Academia Sinica and Department of Life Science, National Taiwan Normal University, TW, 7.Institute of Fisheries Science and Department of Life Science, National Taiwan University, TW, 8.Faculty of Life and Environmental Sciences, University of Yamanashi, JP, 9.Resource Management and Development Department, Laguna Lake Development Authority, PH)

10:15 AM - 10:30 AM

[AHW22-11] Benthic macroinvertebrate assemblages and water quality reflect the impacts of land use and land cover in Marikina Watershed, Philippines

*Julie - An N. Gregorio1,2, Elfritzson M. Peralta3,5, Irisse Bianca B. de Jesus3,5, Tohru Ikeya6, Jonathan Carlo A. Briones3,4,5, Rey Donne S. Papa3,4,5, Francis S. Magbanua1, Noboru Okuda6 (1.Institute of Biology, University of the Philippines, Diliman, Quezon City, 1101 Philippines, 2.Institute of Environmental Science and Meteorology, University of the Philippines, Diliman, Quezon City 1101 Philippines, 3.Research Center for the Natural and Applied Sciences, University of Santo Tomas, España Boulevard, Manila, 1015, Philippines, 4.Department of Biological Sciences, University of Santo Tomas, España Boulevard, Manila, 1015, Philippines, 5.The Graduate School, University of Santo Tomas, España Boulevard, Manila, 1015, Philippines, 6.Research Institute for Humanity and Nature, 457-4 Motoyama, Kamigamo, Kyoto, 603-8047, Japan)