Long term monitoring of bottom water and sea floor environments in off Otsuchi, Iwate.(ca. 300m and 1000m)

Fiscal Year

2018

Title

Long term monitoring of bottom water and sea floor environments in off Otsuchi, Iwate.(ca. 300m and 1000m)

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
2017/06/09 - 2018/08/30
Research Area
39-20.078'N, 142-10.038'E 297m (M-1). 39-32.040'N, 142-14.937'E. 339m (M-3). 39-19.975'N, 142-27.512'E, 947m (M-4).
Category
Mooring system(Observation buoy)
Overview
Deployment and recovery of long term monitoring system.

Overview of the Observation

Research Point Table
Point
NameM-1
Coordinates39.334633,142.1673
Remarks297m (M-1)
NameM-3
Coordinates39.534,142.24895
Remarks339m (M-3)
NameM-4
Coordinates39.332917,142.458533
Remarks947m (M-4)
Results and Future Plan
Deployment and recovery of long term monitoring system.

Investigation Item and Data Acquisition

Investigation ItemData Acquisition
Mooring system (Observation buoy)Water temperature (1 hour interval at M-4, 30 minutes at M-3. M-2 is no data.)
Mooring system (Observation buoy)Salinity (1 hour interval at M-4, 30 minutes at M-3. M-2 is no data.)
Mooring system (Observation buoy)Water depth (1 hour interval at M-4, 30 minutes at M-3. M-2 is no data.)
Mooring system (Observation buoy)Turbidity (1 hour interval at M-4, 30 minutes at M-3. M-2 is no data.)
Mooring system (Observation buoy)Dissolved oxygen concentration (1 hour interval at M-4, 30 minutes at M-3. M-2 is no data.)
Mooring system (Observation buoy)Current direction and intensity (1 hour interval at M-4, 30 minutes at M-3. M-2 is no data.)
Mooring system (Observation buoy)Picture of sea floor (4 pictures/day. 107 images at M-4, 87 images at M-3 and 9 images at M-2)
Mooring system (Observation buoy)Movie of sea floor (5 minutes in 1 week interval: 4 videos at M-4 and M-3. M-2 no videos.)

Reference

Person in charge of Investigation

Representative personKazumasa Oguri
OrganizationJapan Agency for Marine-Earth Science and Technology
DepartmentDepartment of Marine Biodiversity Research

Keywords

Fiscal Year2018
OrganizationJapan Agency for Marine-Earth Science and Technology
CategoryMooring system (Observation buoy)
Research AreaSouth Sanriku
DisciplineOcean physics -> Water temperature
Ocean physics -> Salinity
Ocean physics -> Ocean current / Tidal current (Current direction/Current speed)
Ocean physics -> Transparency / Turbidity
Ocean chemistry -> Salinity
Ocean chemistry -> Dissolved oxygen