Field survey of rocky shore ecosystem in Onagawa Bay

Fiscal Year

2014

Title

Field survey of rocky shore ecosystem in Onagawa Bay

Project and Theme

Project 1. Study on ecological succession of fisheries ground
Representative Organization: Tohoku University
Theme2. Ecosystems and genetic researches to conserve and restore the coastal fisheries areas in Miyagi Prefecture
Representative personYukio Agatsuma
OrganizationTohoku University
DepartmentGraduate School of Agricultural Science

Research Information

Period and Interval
2014/07/01 - 2014/07/31, 2014/10/01 - 2014/10/31
Research Area
Onagawa Bay
0084_P01_map01.pdf
Category
Field survey
Overview
We will obtain data or samples of seaweeds, invertebrate animals, and environments in 7 sites in Onagawa Bay. At each site, survey will be conducted mainly at 1 m-intervals from 0 m water depth to maximum of 10 m water depth on a transect line. Survey on sea urchins and sargassum epifauna will be conducted at all sites in July and October, respectively. In the July survey, seaweed and topshell will also be investigated at site A.

Investigation Item and Data Acquisition

Investigation ItemData Acquisition
sedimentsedimant samples for TOC and TN analysis (site A, B, D, E)
sea urchindensity (indiv. /m2), size distribution, growth, and age destribution of Mesocentrotus nudus and Strongylocentrotus intermedius.
sargussum epifaunaabundance of each taxa of sargussum epifauna.
sea weedcoverage (%) of each species of seaweeds, with photographs (only at site A).
top shelldensity (indiv. /m2) and size distribution of each species of Tegulidae (only at site A).
water qualityvertical profile data of salinity, water temperature, turbidity, dissolved oxygen, pH, chl a.

Reference

Related Observation Result
FY2014 Field survey of rocky shore ecosystem in Onagawa Bay

Person in charge of Investigation

Representative personHikaru Endo
OrganizationTohoku University
DepartmentGraduate School of Agricultural Science

Contact person about data & samples

Representative personAyaka Horikoshi
OrganizationTohoku University
DepartmentGraduate School of Agricultural Science

Keywords

Fiscal Year2014
OrganizationTohoku University
CategoryField survey
Research AreaSouth Sanriku
DisciplineOcean physics -> Water temperature
Ocean physics -> Salinity
Ocean physics -> Others
Ocean chemistry -> Salinity
Ocean chemistry -> Dissolved oxygen
Ocean environment -> Plant pigments
Ocean biology / Ocean ecology -> Biomass
Ocean biology / Ocean ecology -> Sea algae
Ocean biology / Ocean ecology -> Arthropods
Ocean biology / Ocean ecology -> Mollusks
Ocean biology / Ocean ecology -> Others
Topography / Geology / Geophysics -> Bottom sediment