Fiscal Year
2015
Title
Researches on marine ecosystem dynamics off Sanriku
Project and Theme
Project 3. Research on factors controlling open ocean benthopelagic ecosystem dynamics
Representative Organization: Japan Agency for Marine-Earth Science and Technology
Theme1. Analysis of marine ecosystem change| Representative person | Yoshihiro Fujiwara |
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| Organization | Japan Agency for Marine-Earth Science and Technology |
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| Department | Eastern Japan Marine Ecosystems Dynamics Project team |
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Research InformationPeriod and Interval2016/03/04 - 2016/03/11
Research Area
off Sanriku
CategoryResearch Cruise
OverviewTopographic survey
During the cruise, two lines off Iwate were topographically surveyed.
Quantitative observation of benthic animals and debris using by the stereo camera system
The quantitative biomass of benthic animals and mass of marine debris were observed by the stereo camera system loaded inside of the Hyper-Dolphin skid for establishing the habitat models.
Behavior and distribution patterns of commercial species recorded by the bio-tracking system
Five bio-tracking base stations and an ADCP deployed off Otsuchi, 700m depth along with the deep-sea canyon, were successfully recovered.
Off shore environmental dynamics measured by the long term monitoring system
Long term monitoring systems deployed off Kamaishi deep-sea canyon in October 2014 at 760m depth and off Otsuchi in May 2015 at 1000m depth were recovered successfully and obtained data sets.
Overview of the Observation
Results and Future PlanTopographic survey
During the cruise, two lines off Iwate were topographically surveyed.
Quantitative observation of benthic animals and debris using by the stereo camera system
The quantitative biomass of benthic animals and mass of marine debris were observed by the stereo camera system loaded inside of the Hyper-Dolphin skid for establishing the habitat models.
Behavior and distribution patterns of commercial species recorded by the bio-tracking system
Five bio-tracking base stations and an ADCP deployed off Otsuchi, 700m depth along with the deep-sea canyon, were successfully recovered.
Off shore environmental dynamics measured by the long term monitoring system
Long term monitoring systems deployed off Kamaishi deep-sea canyon in October 2014 at 760m depth and off Otsuchi in May 2015 at 1000m depth were recovered successfully and obtained data sets.
Reference
Related Observation Plan
Related Observation Data
Person in charge of Investigation
| Representative person | Shinji Tsuchida |
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| Organization | Japan Agency for Marine-Earth Science and Technology |
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| Department | Department of Marine Biodiversity Research |
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| Fiscal Year | 2015 |
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| Organization | Japan Agency for Marine-Earth Science and Technology |
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| Category | Research Cruise |
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| Research Area | North Sanriku
South Sanriku
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| Discipline | Ocean physics -> Water temperature
Ocean physics -> Salinity
Ocean physics -> Ocean current / Tidal current (Current direction/Current speed)
Ocean chemistry -> Salinity
Ocean chemistry -> Dissolved oxygen
Ocean biology / Ocean ecology -> Biological classification
Ocean biology / Ocean ecology -> Biomass
Ocean biology / Ocean ecology -> Ecology
Ocean biology / Ocean ecology -> Fishes
Ocean biology / Ocean ecology -> Arthropods
Ocean biology / Ocean ecology -> Mollusks
Topography / Geology / Geophysics -> Bathymetry
Topography / Geology / Geophysics -> Topography
Topography / Geology / Geophysics -> Marine sediments
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