The Eighth International Symposium on Arctic Research (ISAR-8)
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Session Details

OralR6: Marine Ecosystems

[R6-O]R6:Marine ecosystems

Fri. Oct 31, 2025 10:30 AM - 12:00 PM JST
Fri. Oct 31, 2025 1:30 AM - 3:00 AM UTC
Room 2
Chair: Yuri Fukai (JAMSTEC), Irene D. Alabia (Hokkaido University)
10:30 AM - 10:45 AM JST(1:30 AM - 1:45 AM UTC)

[R6-O-01]Relative importance of nanoflagellate grazing and viral lysis for bacterial and Synechococcus spp. mortality in high-latitude fjord (Adventfjorden, Svalbard) on summer

*Madeline Olivia1,2, Ruei-Feng Shiu1,2,3, Patrichka Wei-Yi Chen1,2, Chia-Mei Chang1, Clara Natalie Annabel1, Chuen-Fa Ni4, Hwa Chien5, Slawomir Jack Giletycz6, An-Yi Tsai1,2,3 (1. Institute of Marine Environment and Ecology, National Taiwan Ocean University (Taiwan), 2. Doctoral Degree Program in Ocean Resource and Environmental Changes, National Taiwan Ocean University (Taiwan), 3. Center of Excellence for the Oceans, National Taiwan Ocean University (Taiwan), 4. Graduate Institute of Applied Geology, National Central University (Taiwan), 5. Graduate Institute of Hydrological and Oceanic Sciences, National Central University (Taiwan), 6. Department of Earth Sciences, National Central University (Taiwan))
10:45 AM - 11:00 AM JST(1:45 AM - 2:00 AM UTC)

[R6-O-02]Autumn Phytoplankton Communities in the Pacific Arctic Ocean: Effects of Delayed Sea Ice Retreat

*Dai Sumiyoshi1, Amane Fujiwara2, Manami Tozawa3, Kohei Matsuno1 (1. Hokkaido University (Japan), 2. JAMSTEC (Japan), 3. National Institute of Polar Research (Japan))
11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)

[R6-O-03]A pan-Arctic comparison of phytoplankton bloom phenology

*Hisatomo Waga1,2, Eiji Watanabe3 (1. University of Alaska Fairbanks (United States of America), 2. National Institute of Polar Research (Japan), 3. Japan Agency for Marine-Earth Science and Technology (Japan))
11:15 AM - 11:30 AM JST(2:15 AM - 2:30 AM UTC)

[R6-O-04]Drivers of Arctic Phytoplankton and Transparent Exopolymer Particle Dynamics Using Ocean Biogeochemistry Modeling and Generalized Additive Models

*Moritz Zeising1, Ehsan Mehdipour1,2, Astrid Bracher1,3 (1. Alfred Wegener Institute Helmholtz Center for Polar and Marine Research (Germany), 2. Constructor University Bremen (Germany), 3. Institute of Environmental Physics, University of Bremen (Germany))
11:30 AM - 11:45 AM JST(2:30 AM - 2:45 AM UTC)

[R6-O-06]Interannual changes in settling particle flux and the impact of ocean circulation in the southwestern Canada Basin, Arctic Ocean, for 2010-2023

*Jonaotaro Onodera1, Motoyo Itoh1, Mariko Hatta1, Eiji Watanabe1, Kohei Mizobata2, Yuichiro Tanaka3, Takuhei Shiozaki4, Naomi Harada4, Takashi Kikuchi1 (1. Japan Agency for the Marine-Earth Science and Technology (Japan), 2. Tokyo University of Marine Science and Technology (Japan), 3. National Institute of Advanced Industrial Science and Technology (Japan), 4. The University of Tokyo (Japan))
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