水産養殖研究開発ジャーナル

概要

The Kuril Islands as a Potential Region for Aquaculture: Organochlorine Pesticides in Pink and Chum Salmon

Vasiliy Yu Tsygankov

The Kuril Islands region is considered promising for development of salmon aquaculture. There are 41 salmon fish hatcheries in the Sakhalin Island and the Kuril Islands, 38 of them are hatcheries of the pink and chum. Food safety of products is an important task of aquaculture. Therefore, concentrations of isomers of hexachlorocyclohexane (α-, β-, γ-HCH) and dichlorodiphenyltrichloroethane (DDT) and its metabolites (dichlorodiphenyldichloroethane (DDD) and dichlorodiphenyldichloroethylene (DDE) were determined in pink and chum salmon were caught in this region. The contents of toxic substances don’t exceed the maximum permissible concentrations (MPC) according to the Russian sanitary standards. The average total concentration of pesticides in organs of salmon from the Kuril Islands is lower than that in salmon from the North Pacific American coast and the Atlantic Ocean. The region can be used to grow smolts, which will be later released into the ocean.