Research within the framework of the state assignment was carried out in the Chelbasskaya, Akhtarsko-Grivenskaya, Gester, Kulikovo-Kurchanskaya, Kulikovo-Ordynsky groups of estuaries.
Expedition leader Viktor Petrashov noted: "This year, during the spring period, good water availability was recorded in all surveyed reservoirs, which created favorable conditions for spawning of producers and feeding of juveniles of spring-spawning fish species."
Scientific work included ichthyological studies to determine the abundance, distribution, and reproduction of aquatic biological resources, as well as hydrological observations, hydrochemical and hydrobiological sampling, water and sediment samples for contamination. The research was carried out using specialized fishing gear, such as a roe net, a roe net, and fishing nets, using small watercraft.
According to preliminary results, a decrease in salinity was noted in comparison with the same period of the previous year in the reservoirs of the Temryuk district.
For each catch, the species composition, total weight and percentage of fish of various species, size and mass composition, sex and stage of gonad maturity, as well as age were determined. These data will allow for a detailed analysis of the state of populations of aquatic biological resources in the studied groups of estuaries.
The results of the expedition will make it possible to assess stocks of fish species of important commercial importance, the state of their habitat and will be used to develop materials justifying the recommended amount of catch of aquatic biological resources in the Azov estuaries.
VNIRO Press Service
