Researches on marine ecosystem dynamics in the Tsunami affected area off Sanriku

Fiscal Year

2018

Title

Researches on marine ecosystem dynamics in the Tsunami affected area 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
Research on factors controlling open ocean benthopelagic ecosystem dynamics
Representative personYoshihiro Fujiwara
OrganizationJapan Agency for Marine-Earth Science and Technology
DepartmentEastern Japan Marine Ecosystems Dynamics Project team

Research Information

Period and Interval
2018/05/29 - 2018/06/17
Research Area
off Sanriku
Category
Research Cruise
Overview
Topographic survey. Quantitative observation of benthic animals and debris using by the bottom observation camera system. Biological sampling for estimating parameters of the ecosystem model.

Overview of the Observation

Research Point Table
Polygon
Nameoff Sanriku
Coordinates37,141/40.45,141/40.45,143.5/37,143.5/37,141
Results and Future Plan
Topographic survey During the cruise, bathymetry data off Fukushima, Miyagi, Iwate was obtained by SEABAT. Quantitative observation of benthic animals and debris using by the bottom observation camera system The quantitative biomass of benthic animals and mass of marine debris were observed by the main HDTV camera of KM-ROV and ROV Crambon. Also, the bottom observation camera system loaded on the rear of the ROVs obtained still images for establishing the habitat models. Biological sampling for estimating parameters of the ecosystem model. As the candidates of functional groups of Ecopath model, ophiuroids, dahlia anemone, and other benthic animals were collected for stomach contents analysis.

Reference

Related Observation Plan
FY2018 Researches on marine ecosystem dynamics in the Tsunami affected area off Sanriku
Related Observation Data
KM18-05C KM-ROV movies
KM18-05C CRAMBON-ROV (movies and photos)
KAIMEI KM18-05C Navigation
KAIMEI KM18-05C Shipboard Acoustic Doppler Current Profiler (ADCP)
KAIMEI KM18-05C Shipboard Three Component Magnetometer (STCM)
KAIMEI KM18-05C Sea-surface Photosynthetically Active Radiation (PAR)
KAIMEI KM18-05C Biological sample data
KAIMEI KM18-05C Cloud Ceiling
KAIMEI KM18-05C Gravity
KAIMEI KM18-05C Underway Thermosalinograph Data
KAIMEI KM18-05C Marine Meteorology
KAIMEI KM18-05C Precipitable water vapor (GNSS water vapor)
KAIMEI KM18-05C Expendable Bathythermograph (XBT)
KAIMEI KM18-05C Expendable Bathythermograph (XBT) Fall-rate bias corrected
KM18-05C KM-ROV KMROV 00068 Submersible Conductivity-Temperature-Depth Profiler (CTD)
KM18-05C KM-ROV KMROV 00069 Submersible Conductivity-Temperature-Depth Profiler (CTD)
KM18-05C KM-ROV KMROV 00070 Submersible Conductivity-Temperature-Depth Profiler (CTD)
KM18-05C KM-ROV KMROV 00071 Submersible Conductivity-Temperature-Depth Profiler (CTD)
KM18-05C KM-ROV KMROV 00072 Submersible Conductivity-Temperature-Depth Profiler (CTD)
KM18-05C KM-ROV KMROV 00073 Submersible Conductivity-Temperature-Depth Profiler (CTD)
KM18-05C KM-ROV KMROV 00074 Submersible Conductivity-Temperature-Depth Profiler (CTD)
KAIMEI KM18-05C Bathymetry (MBES)
Biological pictures collected from ROV-Crambon movies

Person in charge of Investigation

Representative personShinji Tsuchida
OrganizationJapan Agency for Marine-Earth Science and Technology
DepartmentAnalysis of changes in east Japan marine ecosystems research and development group

Keywords

Fiscal Year2018
OrganizationJapan Agency for Marine-Earth Science and Technology
CategoryResearch Cruise
Research AreaNorth Sanriku
South Sanriku
DisciplineOcean physics -> Water temperature
Ocean biology / Ocean ecology -> Biomass
Ocean biology / Ocean ecology -> Fishes
Ocean biology / Ocean ecology -> Arthropods
Ocean biology / Ocean ecology -> Mollusks
Ocean biology / Ocean ecology -> Plankton
Topography / Geology / Geophysics -> Topography