Monitoring the state of populations of whitefish species and Pacific salmon in the lower reaches of the Kolyma River

Abstract

The purpose: the main objective of the work is to study the state of whitefish populations in the lower reaches of the Kolyma River (Sakha Republic (Yakutia)), as well as monitoring the runs of Pacific salmon (chum salmon, pink salmon).
Methods used: the research work was carried out using standard generally accepted methods.
Result: data were obtained on the size composition and state of the populations of European whitefish, broad whitefish, peled, muksun, sheefish, sardine cisco, as well as pike and burbot. Pacific salmon were not noted during the research period.
Practical significance: the results of the research work will be used in the preparation of a biological justification for determining the volumes of whitefish and Pacific salmon catches in the Kolyma River for 2025 and subsequent years.