THE NORTH SHRIMP PANDALUS EOUS OF THE KAMCHATKA-KURIL COMMERCIAL SUBZONE: CURRENT POPULATION CONDITION AND HARVEST 2017

Abstract

The paper represents analysis of the data about the north shrimp Pandalus eous Makarov, 1935 (Decapoda, Caridae), obtained during bottom trawl surveys near the coast of West Kamchatka in summer of 2017. Maps of distribution and assessment of biological condition of the shrimp are made based on the data and data from literature. It is revealed that in summer period the north shrimp form dense aggregations in the southeastern part of the Sea of Okhotsk along the 200 m deep horizon. An aggregation of small-sized shrimps was found in vicinity of the cape Lopatka. Three plots of the highest density were subdivided in the area examined (between 53° and 54° N): the plot where the north shrimp demonstrate desseminated character of distribution (southward from 53° N) and the most southern plot (between 51° and 52° N), where the number of juvenile and male individuals was the highest. The size composition of shrimps at mentioned plots was different. Aside from analysis of the biological indices there was also provided analysis of fishery campaign 2017 in winter and spring. Position of ships depending on the time of fishing and final production made of shrimp harvested was analyzed.