Fiscal Year
2012
Title
Analysis of chemical substance accumulation in fishes and molluscs
Project and Theme
Project 3. Research on factors controlling open ocean benthopelagic ecosystem dynamics
Representative Organization: Japan Agency for Marine-Earth Science and Technology
Theme4. Trophic position and bioaccumulation studies in marine organisms| Representative person | Naohiko Ohkouchi |
|---|
| Organization | Japan Agency for Marine-Earth Science and Technology |
|---|
| Department | Eastern Japan Marine Ecosystems Dynamics Project team |
|---|
Research InformationPeriod and Interval2012/04/01 - 2013/03/31
Research Area
Off Sanriku
CategoryOthers
OverviewThe team quantify chemical substances in fishes and molluscs to monitor their pollution induced by tsunami. We also estimate the trophic position of these samples to better understand the pollution reality with considering the bioaccumulation of chemical substances.
Overview of the Observation
Research Point Table
| Polygon | | Coordinates | 40,142/40,143/38,143/38,142 |
|---|
| Remarks | Vertexes of the polygon. |
|---|
|
|---|
Research Point Map & Track Chart Map & Point List
Results and Future PlanIn Off-Sanriku, we collected biological (mainly bottom fish) and sediment samples. Furthermore, we determined nitrogen isotopic compositions of individual amino acids from these biological samples to estimate their trophic positions. Based on these data set, we concluded that the organochlorine pollution in this region is insignificant in 2012. We plan to continue this monitoring in the future.
Investigation Item and Data Acquisition
| Investigation Item | Data Acquisition |
|---|
| Analysis of chemical substances | Fish, Molluscs |
| Nitrogen isotopic analysis of amino acids | Fish, Molluscs |
Reference
Related Observation Plan
Related Observation Data
Person in charge of Investigation
| Representative person | Naohiko Ohkouchi |
|---|
| Organization | Japan Agency for Marine-Earth Science and Technology |
|---|
| Department | Department of Biogeochemistry |
|---|
| Fiscal Year | 2012 |
|---|
| Organization | Japan Agency for Marine-Earth Science and Technology |
|---|
| Category | Others |
|---|
| Research Area | North Sanriku
South Sanriku
Off Tohoku
|
|---|
| Discipline | Ocean environment -> Organic chlorine compounds
Ocean biology / Ocean ecology -> Fishes
Ocean biology / Ocean ecology -> Mollusks
|
|---|
