The results of the accounting trawl survey of aquatic biological resources in the Sea of Okhotsk in the spring of 2025

Abstract

The aim: assessment of stocks and prospects of fishing for aquatic biological resources in the Sea of Okhotsk.
Methods: data collection was carried out in accordance with generally accepted methods in ichthyological practice.
Innovations: up-to-date data on the composition, ratio, abundance, and biomass of nekton in the Sea of Okhotsk in the spring of 2025 have been obtained.
Results: an assessment of the reserves of aquatic organisms in the Sea of Okhotsk was carried out, which totaled 34,0 billion specimens and 10,2 million tons. Data on the distribution and biological status of nekton in three areas of the Sea of Okhotsk were obtained: Western Kamchatka, Shelikhov Bay (West Kamchatka and Kamchatka-Kuril subzones) and the northern part of the Sea of Okhotsk (North Okhotomor subzone). An analysis of the spatial distribution of pollock in various areas of the Sea of Okhotsk showed the highest density of its accumulations in Western Kamchatka and in the hall. Shelikhov. At the same time, dense accumulations of herring are noted above the slopes of the deep-sea trough in the hall. Shelikhov and above the shelf part of the North Okhotsk region. Capelin accumulations were mostly localized in the hall. Shelikhov and northwestern Kamchatka. The general distribution of sakhalin flounder was confined to the offshore waters off Western Kamchatka and in the North Okhotsk region.
The practical significance: the results of the study will serve as the basis for developing materials for forecasting the total number of species of aquatic biological resources in the Sea of Okhotsk.