Monitoring the state of aquatic bioresources in the delta of the Northern Dvina River

 

During the work, water temperature measurements were taken, ichthyological samples were collected, and biological analysis was performed. A total of 10 fish species were found in the catches, the largest share being bream and ide.

 

The main objective of the research was to obtain information on the spawning periods of bream. Based on the analysis of the collected material, the dates (periods) prohibited for catching (catching) bream in the Northern Dvina River will be adjusted, with subsequent amendments to the Fishing Rules.

 

Carrying out work to clarify the spawning periods of common fish species is important for fisheries and the conservation of aquatic bioresources during periods of rapid climate change.

 

VNIRO Press Service