JpGU Meeting 2018
Session outline| Atmospheric and Hydrospheric Sciences(A) | ||
|---|---|---|
| Session Sub-category | Ocean Sciences & Ocean Environment | |
| Session ID | A-OS09 | |
| Title | Marine ecosystems and biogeochemical cycles: theory, observation and modeling | |
| Short Title | Marine ecosystems and biogeochemical cycles | |
| 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 | Eileen E Hofmann |
| Affiliation | Old Dominion University | |
| Co-Convener 3 | Name | Enrique N Curchitser |
| Affiliation | Rutgers University New Brunswick | |
| Session Language | EE | |
| 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. This session aims to provide a venue for discussing recent advances in understanding marine biogeochemical cycles, ecosystems and their interactions. Observational and modeling studies that consider linkages between biogeochemical and ecosystem processes, biodiversity and biogeochemistry, and the effects of multiple stressors are especially encouraged. | |
| Presentation Format | Oral and Poster presentation | |
| Joint Session with | AGU | |
| Co-Sponsoring Societies (Society Members) | The Oceanographic Society of Japan | |
| Invited Authors |
| |
| Time | Presentation No | Title | Presenter | Abstract |
|---|---|---|---|---|
| Oral Presentation May 23 AM1 | ||||
| 09:05 - 09:25 | AOS09-01 | Ocean carbon cycle feedbacks on climate dominated by surface ocean chemistry (Revelle Factor) feedbacks | Keith Bradley Rodgers | Abstract |
| 09:25 - 09:45 | AOS09-02 | Challenges in Modeling the Size-Based Dynamics of Plankton Ecosystems | S. Lan Smith | Abstract |
| 09:45 - 10:00 | AOS09-03 | Multiscale transport, stirring, and mixing processes to supply nutrients through the Kuroshio nutrient stream | Takeyoshi Nagai | Abstract |
| 10:00 - 10:15 | AOS09-04 | Nutrient supply to the euphotic layer in the Kuroshio and Kuroshio Extension | Yingying Hu | Abstract |
| 10:15 - 10:30 | AOS09-05 | Seasonal to interannual variations in surface phosphate concentration in Oyashio region: Role of wind-induced coastally trapped currents | Takuya Nakanowatari | Abstract |
| Oral Presentation May 23 AM2 | ||||
| 10:45 - 11:00 | AOS09-06 | High resolution biogeochemical modelling in the North Pacific | Hatsumi Nishikawa | Abstract |
| 11:00 - 11:15 | AOS09-07 | Nitrate isotope distributions in the subarctic and subtropical North Pacific | Chisato Yoshikawa | Abstract |
| 11:15 - 11:30 | AOS09-08 | Significant decrease in nitrification rates by Arctic environment changes | Takuhei Shiozaki | Abstract |
| 11:30 - 11:45 | AOS09-09 | A Lagrangian view of spring phytoplankton blooms | Shinichiro Kida | Abstract |
| 11:45 - 12:00 | AOS09-10 | A one-dimensional turbulence-ecosystem model investigation of spring bloom initiation associated with mesoscale eddies | Eligio de Raus Maure | Abstract |
| 12:00 - 12:15 | AOS09-11 | Turbulence controls size distribution of aggregates: in-situ observations by a microstructure profiler and a cabled observatory | Marika Takeuchi | Abstract |
| Oral Presentation May 23 PM1 | ||||
| 13:45 - 14:00 | AOS09-12 | Highly intermittent plankton ecosystem: observations and new models | Hidekatsu Yamazaki | Abstract |
| 14:00 - 14:15 | AOS09-13 | A phytoplankton model with dynamic stoichiometry based on a new instant acclimation scheme: good reproduction of the subsurface chlorophyll maximum and primary production | Yoshio Masuda | Abstract |
| 14:15 - 14:30 | AOS09-14 | Reconstruction of experienced temperature in early stage of chub mackerels Scomber japonicas by otolith oxygen isotope measurement | Tomihiko Higuchi | Abstract |
| 14:30 - 14:45 | AOS09-15 | A scheme to reproduce migration history of the Japanese sardine; combination use of otolith d18O and an individual-based migration model | Tatsuya Sakamoto | Abstract |
| 14:45 - 15:00 | AOS09-16 | A growth-migration model for evaluating environmental effects on growth and migration of Pacific chub mackerel Scomber japonicus in the Northwest Pacific | Chenying Guo | Abstract |
| 15:00 - 15:15 | AOS09-17 | A simulation model for the neon flying squid (Ommastrephes bartramii) distribution in the Kuroshio-Oyashio transition region | Haruka Nishikawa | Abstract |
| Presentation No | Title | Presenter | Abstract |
|---|---|---|---|
| Poster Presentation May 23 Core Time | |||
| AOS09-P01 | Improvement of the physical-biogeochemical-fish coupled model for the western North Pacific | Takaaki Yokoi | Abstract |
| AOS09-P02 | CMIP5 model analysis of future changes in ocean net primary production by focusing on different response among the individual oceans and models | Yuki Nakamura | Abstract |
| AOS09-P03 | Vertical fluxes of nutrients based on radium-228 data in the western subarctic Pacific | Hirofumi Tazoe | Abstract |
| AOS09-P04 | Investigation of the relationship between salinity and stable oxygen isotope of surface seawater based on high resolution δ18O mapping in Tsushima warm current area and the Sea of Japan | Toyoho Ishimura | Abstract |
| AOS09-P05 | Fine-scale temporal variation of chlorophyll-a in the Kuroshio waters revealed from the Advanced Himawari Imager onboard the meteorological satellite Himawari-8 | Takafumi Hirata | Abstract |
| AOS09-P06 | Plankton diversity and community structure based on a cabled observatory data | Gabriel Ruske Freitas | Abstract |
| AOS09-P07 | True nature and reversal of coral reefs and foraminifera habitats through temporal dependence of surface oceans | Kazuhiko Ichikawa | Abstract |
| AOS09-P08 | Detecting the difference of life history in a fish group by using micro-scale oxygen isotopic analysis of otoliths | Tomoya Aono | Abstract |
| AOS09-P09 | Stable isotopic responses of otoliths of juvenile sardine Sardinops melanostictus experimentally cultured at different temperatures | Kozue Nishida | Abstract |
| AOS09-P10 | A challenge to evaluate effect of climate change on Japanese anchovy (Engraulis japonicus) in the East China Sea IV | Shin-ichi Ito | Abstract |
| AOS09-P11 | Modeling the coastal ecosystem complex: present situation and challenges | Sachihiko Itoh | Abstract |