JpGU Meeting 2019
Session outline| Atmospheric and Hydrospheric Sciences (A) | ||
|---|---|---|
| Session Sub-category | Ocean Sciences & Ocean Environment(OS) | |
| Session ID | A-OS12 | |
| Title | Marine ecosystems and biogeochemical cycles: theory, observation and modeling | |
| Short Title | Marine ecosystems & biogeochemical cycle | |
| Main Convener | Name | Shin-ichi Ito |
| Affiliation | Atmosphere and Ocean Research Institute, The University of Tokyo | |
| Co-Convener 1 | Name | Takafumi Hirata |
| Affiliation | Faculty of Environmental Earth Science, Hokkaido University | |
| Co-Convener 2 | Name | Enrique N Curchitser |
| Affiliation | Rutgers University New Brunswick | |
| Co-Convener 3 | Name | Eileen E Hofmann |
| Affiliation | Old Dominion University | |
| Session Language | E | |
| Scope | The ocean accounts for about 50% of global net primary production. This production is significant for carbon cycling and ecosystem functioning, and is related directly or indirectly to a variety of climatic and ecological phenomena. The responses to natural and anthropogenic environmental stressors that influence marine production and diversity can cause perturbations to marine ecosystems that alter trophic dependencies and interactions among organisms at a range of space and time scales. Quantification of the principal mechanisms driving spatio-temporal variability of marine ecosystem remains to be done, especially in terms of evaluation of uncertainty in responses. As a result, evaluating vulnerability of marine ecosystems to environmental change requires systematic and holistic approaches that integrate physics to ecology and are based in observations and modelling. In addition, expectations to deliver these science to public society is raising. This session aims to provide a venue for not only discussing recent advances in understanding marine biogeochemical cycles, ecosystems and their interactions, but also networking with a variety of people to seed new ideas in marine ecological research. Observational, modeling and conceptual studies, including technological development and operational applications, that consider linkages among biogeochemical and ecosystem processes, biodiversity, and the effects of multiple stressors from molecular to planetary scales are encouraged. | |
| Presentation Format | Oral and Poster presentation | |
| Joint Session with | AGU | |
| Invited Authors | Enrique N Curchitser (Rutgers University New Brunswick) Hidekatsu Yamazaki (Tokyo University of Marine Science and Technology) Shinichiro Kida (Research Institute for Applied Mechanics, Kyushu University) | |
| Time | Presentation No | Title | Presenter | Abstract |
|---|---|---|---|---|
| Oral Presentation May 27 AM1 | ||||
| 09:10 - 09:30 | AOS12-01 | Projected coastal hypoxia in a coupled bio-physical model of the California Current System. | Enrique N Curchitser | |
| 09:30 - 09:45 | AOS12-02 | Decadal salinity variation in the western North Pacific correlated with the strength of the Oyashio and the Kuroshio Extension | Hitoshi Kaneko | |
| 09:45 - 10:00 | AOS12-03 | Multiscale routes to supply nutrients through the Kuroshio nutrient stream | Takeyoshi Nagai | |
| 10:00 - 10:15 | AOS12-04 | Seasonal variability of upper-ocean primary production around the Kuroshio analyzed using a ROMS-NPZD model | Xu Zhang | |
| 10:15 - 10:30 | AOS12-05 | Nutrient and light conditions at subsurface chlorophyll maximum: physical-biogeochemical observations along a mid-Pacific meridional transect | Sachihiko Itoh | |
| Oral Presentation May 27 AM2 | ||||
| 10:45 - 11:05 | AOS12-06 | A Lagrangian view of spring phytoplankton blooms | Shinichiro Kida | |
| 11:05 - 11:20 | AOS12-07 | Significance of acclimation process in simulating chlorophyll distribution in the Arctic Ocean | Yoshio Masuda | |
| 11:20 - 11:35 | AOS12-08 | Responses of lower-trophic level ecosystem to nutrient variation in the central part of the Seto Inland Sea | Naoki Yoshie | |
| 11:35 - 11:50 | AOS12-09 | Effects of the temperature and fish size on metabolism and swimming performance of Pacific chub mackerel Scomber japonicus in the Northwest Pacific | Chenying Guo | |
| 11:50 - 12:05 | AOS12-10 | Sensitivity analyses of growth and migration of Japanese anchovy (Engraulis japonicus) in the East China Sea using a fish growth-migration model. | Shin-ichi Ito | |
| Oral Presentation May 27 PM1 | ||||
| 13:45 - 14:05 | AOS12-11 | Micro-scale patchiness enhances trophic transfer efficiency and potential plankton biodiversity | Hidekatsu Yamazaki | |
| 14:05 - 14:20 | AOS12-12 | Long term observations of marine snow, using cabled observatory system | Marika Takeuchi | |
| 14:20 - 14:35 | AOS12-13 | An insight into the area characteristic of seasonal change in nitrogen isotope ratio based on a marine nitrogen isotope model | Chisato Yoshikawa | |
| 14:35 - 14:50 | AOS12-14 | Modeling variability of 15N stable isotope enrichment within the planktonic food chain | S. Lan Smith | |
| 14:50 - 15:05 | AOS12-15 | Discussions | Takafumi Hirata | |
| Presentation No | Title | Presenter | Abstract |
|---|---|---|---|
| Poster Presentation May 27 PM2 | |||
| AOS12-P01 | Impact of the nutrient transport through the Tsushima Strait on the ecosystem in the Japan Sea | Ryota Shibano | |
| AOS12-P02 | Revisiting vertical variations in stoichiometry during oceanic organic matter decomposition | Masahito Shigemitsu | |
| AOS12-P03 | Reproduction of iron-rich intermediate water in the Sea of Okhotsk by high resolution biogeochemical model. | Hatsumi Nishikawa | |
| AOS12-P04 | The global oceanic iron distribution estimated by data assimilation approach | Doi Toshimasa | |
| AOS12-P05 | A high-resolution multi-purpose particle tracking framework for coastal areas near Japan | Yoshimasa Matsumura | |
| AOS12-P06 | Numerical study on seasonality of ocean litters collected at the Dongsha Island in the northern South China Sea | Yi-Chia Hsin | |
| AOS12-P07 | A key spot and timing to monitor chlorophyll-a in the Kuroshio western boundary current | Takafumi Hirata | |
| AOS12-P08 | Impacts of cyclonic eddies on phytoplankton biomass and phenology in the Kuroshio Extension region | Eko Siswanto | |
| AOS12-P09 | Diagnostic estimation and uncertainties of nutrient limitation of phytoplankton growth in Michaelis-Menten functional form | Taketo Hashioka | |
| AOS12-P10 | Modeling productivity in lower trophic levels in Otsuchi Bay, northeast of Japan, using a nested OGCM with a biogeochemical component | Takashi T Sakamoto | |
| AOS12-P11 | Change in lower trophic level ecosystems to decadal scale variation of climate system in the North Pacific Ocean | Maki Noguchi Aita | |
| AOS12-P12 | Estimation of experienced environment of jack mackerel in the East China Sea | Tomihiko Higuchi | |