Thu. May 29, 2025 9:00 AM - 10:30 AM Exhibition Hall Special Setting (2) (Exhibition Hall 7&8, Makuhari Messe)

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

[A-HW27] Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts

convener:Noboru Okuda(Kobe University), Takuya Ishida(Hiroshima University), Masahiro Kobayashi(Kansai Research Center, Forestry and Forest Products Research Institute), Adina Paytan(University of California Santa Cruz), Chairperson:Noboru Okuda(Kobe University)

Thu. May 29, 2025 10:45 AM - 12:15 PM Exhibition Hall Special Setting (2) (Exhibition Hall 7&8, Makuhari Messe)

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

[A-HW27] Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts

convener:Noboru Okuda(Kobe University), Takuya Ishida(Hiroshima University), Masahiro Kobayashi(Kansai Research Center, Forestry and Forest Products Research Institute), Adina Paytan(University of California Santa Cruz), Chairperson:Adina Paytan(University of California Santa Cruz)

Thu. May 29, 2025 1:45 PM - 3:15 PM Exhibition Hall Special Setting (2) (Exhibition Hall 7&8, Makuhari Messe)

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

[A-HW27] Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts

convener:Noboru Okuda(Kobe University), Takuya Ishida(Hiroshima University), Masahiro Kobayashi(Kansai Research Center, Forestry and Forest Products Research Institute), Adina Paytan(University of California Santa Cruz), Chairperson:Takuya Ishida(Hiroshima University)

Thu. May 29, 2025 3:30 PM - 5:00 PM Exhibition Hall Special Setting (2) (Exhibition Hall 7&8, Makuhari Messe)

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

[A-HW27] Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts

convener:Noboru Okuda(Kobe University), Takuya Ishida(Hiroshima University), Masahiro Kobayashi(Kansai Research Center, Forestry and Forest Products Research Institute), Adina Paytan(University of California Santa Cruz), Chairperson:Masahiro Kobayashi(Forestry and Forest Products Research Institute)

Thu. May 29, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

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

[A-HW27] Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts

convener:Noboru Okuda(Kobe University), Takuya Ishida(Hiroshima University), Masahiro Kobayashi(Kansai Research Center, Forestry and Forest Products Research Institute), Adina Paytan(University of California Santa Cruz)

Thu. May 29, 2025 10:45 AM - 12:15 PM Exhibition Hall Special Setting (2) (Exhibition Hall 7&8, Makuhari Messe)

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

[A-HW27] Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts

10:45 AM - 11:00 AM

[AHW27-07] Integrated multi-isotope model to assess nutrient balances in watershed ecosystems: Application of nitrate oxygen isotopes (δ¹⁸O and Δ¹⁷O)

*Noboru Okuda¹, Ken'ichi Osaka³, Keisuke Koba⁵, Takuya Ishida², Tomoya Iwata⁴, Ichiro Tayasu⁶, Yusuke Ozawa¹ (1.Kobe University, 2.Hiroshima University, 3.University of Shiga Prefecture, 4.Yamanashi University, 5.Kyoto University, 6.Research Institute for Humanity & Nature)

11:00 AM - 11:15 AM

[AHW27-08] Integrated multi-isotope model to assess nutrient balances in watershed ecosystems: Application of phosphate oxygen isotope

*Takuya Ishida¹, Ken'ichi Osaka², Takashi Sambuichi³, Tomoya Iwata⁴, Ichiro Tayasu⁵, Urumu Tsunogai³, Fumiko Nakagawa³, Yusuke Ozawa⁶, Noboru Okuda⁶ (1.Hiroshima University, 2.University of Shiga Prefecture, 3.Nagoya University, 4.Yamanashi University, 5.Research Institute for Humanity and Nature, 6.Kobe University)

Wed. May 28, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

[J] Poster
| H (Human Geosciences )
| H-TT Technology & Techniques

[H-TT16] Development and application of environmental traceability methods

5:15 PM - 7:15 PM

[HTT16-P07] Size dimorphism and alternative migration pattern in males of Carassius buergeri grandoculis endemic to Lake Biwa

*Kaho Umemura¹, Junya Kitada¹, Ki-Cheol Shin², Yoshitoshi Uehara², Morihito Nemoto³, Noboru Okuda¹ (1.Kobe University, 2.Research Institute for Humanity and Nature, 3.Shiga Prefectural Fisheries Experiment Station)

Noboru Okuda

Convener, Chairperson

[A-HW27] Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts

[A-HW27] Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts

[A-HW27] Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts

[A-HW27] Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts

[A-HW27] Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts

Speaker, Author, Co-Author

[A-HW27] Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts

[AHW27-07] Integrated multi-isotope model to assess nutrient balances in watershed ecosystems: Application of nitrate oxygen isotopes (δ¹⁸O and Δ¹⁷O)

[AHW27-08] Integrated multi-isotope model to assess nutrient balances in watershed ecosystems: Application of phosphate oxygen isotope

[H-TT16] Development and application of environmental traceability methods

[HTT16-P07] Size dimorphism and alternative migration pattern in males of Carassius buergeri grandoculis endemic to Lake Biwa