Brief results of biological studies of the northern part of the Sea of Japan in the spring of 2022

The purpose of the work is a commercial and biological assessment basic invertebrate species other aquatic organisms in northern regions Sea Japan. Studies provide current characteristics many populations bottom hydrobionts inhabiting depths 24–611m. material methods are standard for fisheries research Russia. Materials were collected 29.04.-01.06.2022, trawl survey. main objects Decapoda crabs shrimps, as well hydrobionts. new data revealed following: 1) among crabs, stock increased slightly everywhere Paralithodes camtschaticus , but it also decreased P. platypus Chionoecetes opilio crab Erimacrus isenbeckii there was significant increase only Western Sakhalin; 2) Pandalus borealis hypsinotus goniurus north Primorye subzone, 3) condition invertebrates fish complex satisfactory or slight their numbers noted. practical significance to fishing information annual prognostic materials on total allowable catches areas part