Research of scallops off Onekotan Island during a specialized fishery in autumn 2020

Abstract

In October-November 2020, on the shelf of Onekotan Island (northern Kuril Islands), hydrobiological studies of Chlamy scallops were carried out in the course of their fishery. A specialized scallop vessel collected data on the fishing area, species and size composition of catches, and the spatial distribution of scallop populations. The area of the shelf of Onekotan Island with the places of traditional fishing grounds was examined, the work was carried out within a 12-mile zone according to the industrial quota. Data were collected on the composition of catches, size composition and biological state of three types of scallops: light scallop, wide-ribbed scallop, and Bering Sea scallop. The places of commercial concentrations are determined, the mosaic distribution is shown.