Research on the relationship between food source and quality of aquacultures in Onagawa Bay

Fiscal Year

2017

Title

Research on the relationship between food source and quality of aquacultures in Onagawa Bay

Project and Theme

Project 1. Study on ecological succession of fisheries ground
Representative Organization: Tohoku University
Theme1. Environmental monitoring and development of a marine habitat map for the coastal ecosystem of Onagawa Bay
Representative personKenji Kaneko
OrganizationTohoku University
DepartmentGraduate School of Agricultural Science
Theme1. Environmental monitoring and development of a marine habitat map for the coastal ecosystem of Onagawa Bay
Representative personAkihiro Kijima
OrganizationTohoku University
DepartmentGraduate School of Agricultural Science

Research Information

Period and Interval
2017/04/01 - 2018/03/31
monthly
Research Area
Onagawa Bay
Category
Field survey
Overview
Research on the relationship between food source and quality of aquacultures (Scallop, Oyster and Sea pineapple) in Onagawa Bay

Overview of the Observation

Research Point Table
Point
NameTakenoura
Coordinates38.4388,141.488347
NameKonorihama
Coordinates38.438681,141.458121
NameIigohama
Coordinates38.402189,141.480661
Results and Future Plan
The carbon and nitrogen stable isotope ratios of aquacultures (scallop, oyster and sea pineapple) were different between three species. the carbon stable isotope ratio of sea pineapple was lower than the ratio of oyster and scallop. It is suggested that food source of sea pineapple is phytoplankton, and food source of oyster and scallop is attached microalgae.

Investigation Item and Data Acquisition

Investigation ItemData Acquisition
Growth of aquaculturesWet weight, Dry weight
Body compositionWater content, Free amino acid contents
food sourcesStable isotope ratios, Fatty acid contents

Reference

Related Observation Plan
FY2017 Research on the relationship between food source and quality of aquacultures in Onagawa Bay
Related Observation Data
Scallop data
Halocynthia roretzi data
Pacific oyster data
Scallop data
Halocynthia roretzi data
Pacific oyster data

Person in charge of Investigation

Representative personAyu Katayama
OrganizationMiyagi University
DepartmentSchool of food, Agricultural and environmental Sciences

Keywords

Fiscal Year2017
OrganizationMiyagi University
CategoryField survey
Research AreaSouth Sanriku
DisciplineOcean biology / Ocean ecology -> Biomass
Ocean biology / Ocean ecology -> Ecology
Ocean biology / Ocean ecology -> Mollusks