Science has assessed the spawning run of vendace in Yamal

 

Research has been completed on the Shchuchya River in the Priuralsky District of Yamal, where specialists from the laboratory of fisheries ecology assessed the spawning run of the Siberian vendace.

 

Scientists from the industry studied the biological parameters and the size-age structure of the spawning stock of vendace. They carried out mass measurements and biological analysis - they determined the age, length, weight, sex of individuals, fat content coefficient and readiness of fish for spawning. The analysis was carried out from commercial catches.

 

The Shchuchya River is the northernmost spawning ground for whitefish species of fish, as well as one of the central breeding grounds for the Siberian vendace, which is the most numerous representative of whitefish in the river basin. This small fish is the most important commercial species of Yamal, a popular object of amateur and sport fishing.

 

As part of the research, specialists from the Tyumen branch not only studied the state of aquatic biological resources, but also collected hydrobiological and hydrochemical samples to assess the ecological state of the Shchuchya River.

 

Press service of VNIRO