Stelling particl and primary production off the coast of Sanriku

Fiscal Year

2013

Title

Project and Theme

Project 3. Research on factors controlling open ocean benthopelagic ecosystem dynamics

Representative Organization: Japan Agency for Marine-Earth Science and Technology

Theme3. Long-term monitoring of the physic-chemical environment in fisheries grounds

Representative person	Shuichi Watanabe
Organization	Japan Agency for Marine-Earth Science and Technology
Department	Eastern Japan Marine Ecosystems Dynamics Project team

Research Information

Period and Interval

2014/04/23 - 2014/04/25

Research Area

Off the coast of Sanriku
0074_R01_map00.pdf

Overview

The cruise of Shinsei Maru (KS-14-3) is conducted under the TEAMS project, namely Tohoku Ecosystem Array of Marine Sciences. The hydrographic observation, the primary production measurement with FRRF, and the deployment and recovery of the sediment trap are planned under this cruise.

Overview of the Observation

Research Point Table

Point

Name	H-1
Coordinates	40.416667,141.833333
Remarks	CTD, FRRF-Rinko profiler
Name	H-2
Coordinates	40.413333,142.001667
Remarks	CTD, FRRF-Rinko profiler
Name	H-3
Coordinates	40.403333,142.248333
Remarks	CTD, FRRF-Rinko profiler
Name	H-4
Coordinates	40.416667,142.5
Remarks	CTD, FRRF-Rinko profiler
Name	H-5
Coordinates	40.416667,142.75
Remarks	CTD, FRRF-Rinko profiler
Name	H-6
Coordinates	40.416667,143
Remarks	CTD, FRRF-Rinko profiler
Name	O-4
Coordinates	39.325,142.668333
Remarks	CTD, FRRF-Rinko profiler
Name	O-5
Coordinates	39.333333,142.916667
Remarks	CTD, FRRF-Rinko profiler
Name	S-1(O-6)
Coordinates	39.33,143.168333
Remarks	CTD(no water samples), FRRF-Rinko profiler, deploying sediment trap
Name	M-1
Coordinates	39.366667,142.083333
Remarks	CTD, FRRF-Rinko profiler
Name	M-2
Coordinates	39.365,142.151667
Remarks	CTD, FRRF-Rinko profiler
Name	M-3
Coordinates	39.366667,142.2
Remarks	CTD, FRRF-Rinko profiler
Name	M-4
Coordinates	39.366667,142.266667
Remarks	CTD, FRRF-Rinko profiler
Name	O-3
Coordinates	39.333333,142.501667
Remarks	CTD, FRRF-Rinko profiler
Name	S-2
Coordinates	39.176667,142.241667
Remarks	recovering sedimnt trap

Research Point Map & Track Chart Map & Point List

0074_R01_map01.pdf, 0074_R01_map02.pdf

Results and Future Plan

The research using monitaring systems and the hydrographic observation are conducted under the "Long-term monitoring of the physic-chemical environment in fisheries grounds".The purpose of these observation is to understand impacts on marine ecosystems by the 2011 Earthquake of the Pacific coast of Tohoku and Tsunami, and to contribute to recover and to rebuild the Sanriku fisheries activities in terms of marine science . The sediment trap was deployed and recovered in the cruise of Shinsei Maru (KS-14-3) for understanding composition of settling particle which were added to the surface of sea floor. The hydrographic observation was also operated at 14 stations. Vertical profiles of Temp., Sal., dissolved oxygen,Turbidity, Chl.a and PAR were obtained with SBE CTD-CAROUSEL system (surface to bottom) and FRRF-RINKO system (suraface to 150m) . Water samples were collected, see attach file. One sediment trap was deployed at station S-1 (39-19.86'N 143-10.00'E, water depth 1937m).Settling particle during 4 days will be collected from 2014 Mar. 26 to 2014 June 29. The sediment trap deployed at 39-20.66'N 142-15.02'E, on 2013 Mar. 10 was recovered from 39-10.65'N 142-15.57'E, using sea clearing method.

Investigation Item and Data Acquisition

Investigation Item	Data Acquisition
sediment trap	settling particles
Hydrographic observation	CTD(Temp., Sal., dissolved oxygen,Turbidity), FRRF(Chl.a, PAR, Temp., Sal.., dissolved oxygen, Turbidity), Dissolved inorganic carbon, total alkalinity, nutrients, salinity, 18O-H2O, dissolved organic carbon, chl.a, pigment

Reference

Related Observation Plan

FY2013 Stelling particl and primary production off the coast of Sanriku

Related Observation Data

SHINSEI MARU KS-14-3 CTD data/ Hydrographic data (bottle)

Person in charge of Investigation

Representative person	Shuichi Watanabe
Organization	Japan Agency for Marine-Earth Science and Technology
Department	Eastern Japan Marine Ecosystems Dynamics Project team

Keywords

Fiscal Year	2013
Organization	Japan Agency for Marine-Earth Science and Technology
Category	Research Cruise
Research Area	North Sanriku South Sanriku
Discipline	Ocean physics -> Water temperature Ocean physics -> Salinity Ocean physics -> Transparency / Turbidity Ocean chemistry -> Salinity Ocean chemistry -> Dissolved oxygen Ocean chemistry -> Nutrients Ocean chemistry -> Carbon dioxide Ocean chemistry -> Alkalinity Ocean chemistry -> Others Ocean environment -> Nutrients Ocean environment -> Plant pigments Ocean environment -> Organic carbon Ocean environment -> Carbon dioxide Ocean environment -> Alkalinity Ocean environment -> Primary production Ocean biology / Ocean ecology -> Plankton

Stelling particl and primary production off the coast of Sanriku

Fiscal Year

Title

Project and Theme

Project 3. Research on factors controlling open ocean benthopelagic ecosystem dynamics

Theme3. Long-term monitoring of the physic-chemical environment in fisheries grounds

Research Information

Period and Interval

Research Area

Category

Overview

Overview of the Observation

Research Point Table

Research Point Map & Track Chart Map & Point List

Results and Future Plan

Investigation Item and Data Acquisition

Reference

Related Observation Plan

Related Observation Data

Person in charge of Investigation

Keywords