To assess the results of reproduction of spring-spawning fish species, early juveniles (larvae) of fish were caught with ichthyoplankton cone nets in various sections of the Ob riverbed. The results of the fisheries will allow us to assess the concentration and species composition of juvenile fish.
To assess the state of the food supply, a hydrobiological survey was carried out, during which samples of zooplankton and zoobenthos were collected. The studies were carried out on various biotopes of the Ob riverbed. Based on the results of the work, the relative abundance and biomass of zooplankton and zoobenthos organisms in the river will be established. Ob spring-summer period.
Research materials will be used to assess the current state of reserves and develop RF of aquatic biological resources for 2026.
VNIRO press service