Specialists from the Altai branch of the Russian State Research Center “All-Russian Research Institute of Fisheries and Oceanography” (VNIRO) conducted research in the hypersaline water bodies of the Altai Territory from July 21 to August 2.

 

The main objective of the research was to assess the living conditions and sexual maturation of the second-generation Artemia crustacean, as well as the prospects for further development of the population. The work was carried out on 28 water bodies, of which: 17 lakes were surveyed as part of monitoring the aquatic biological resources and their habitat, 11 water bodies - as part of reconnaissance studies of potentially productive water bodies of the Altai Territory. Hydrobiological surveys were conducted on 7 water bodies using a motor boat along a grid of stations.

 

During the trip, phytoplankton samples, quantitative and qualitative samples of zooplankton, zoobenthos samples (soil and bottom sediment samples), Artemia samples (at the cyst stage), and water samples for hydrochemical analysis were collected. The habitat of aquatic bioresources was measured for the following parameters: transparency, depth, salinity, temperature, hydrogen index (pH), dissolved oxygen in water.

 

Work was carried out on determining the fecundity of Artemia on live material in most of the reservoirs.

 

The collected material was delivered to the branch laboratories for further office processing. The results obtained will serve as the basis for developing a forecast for the state of the Artemia population for the coming years.

 

Press service of VNIRO

 

Specialists of the West Caspian Department of the Volga-Caspian Branch of the Russian State Research Center of Fisheries and Oceanography (VNIRO) continued the work of the second (summer) stage of the expedition to monitor the state of aquatic biological resources and their habitat in the upper reaches of the Terek River basin.

Two expedition teams of the Laboratory of Aquaculture of Invertebrates and Algae of the Sakhalin Branch of the Russian State Research Center “All-Russian Research Institute of Fisheries and Oceanography” (VNIRO) together with diving groups carried out the planned work in the Aleksandrovsky Bay (Sea of Japan, Tatar Strait) and off the southeastern coast of Sakhalin Island.

On August 6, specialists from the Azov-Black Sea branch of the Russian State Research Center of Fisheries and Oceanography (VNIRO) began the second stage of the lampara, ichthyoplankton, and zooplankton survey in the Sea of Azov.

The Middle Volga branch of the Russian State Research Center “All-Russian Research Institute of Fisheries and Oceanography” (VNIRO) carried out the first stage of the summer complex expedition in the waters of the Tsimlyansk Reservoir.

The complex of invertebrate studies will be carried out by experienced carcinologists from the Magadan and Pacific branches of the Russian State Research Center “All-Russian Research Institute of Fisheries and Oceanography” (VNIRO).

In July of this year, specialists from the Volga-Caspian branch of the Russian State Research Center “All-Russian Research Institute of Fisheries and Oceanography” (VNIRO) conducted control catches to study the feeding grounds and distribution of producers of semi-anadromous and river fish in the rolling part of the western watercourses of the Volga Delta.

At the end of July, as part of the state monitoring of aquatic biological resources and their habitat in inland waters, specialists from the St. Petersburg and Novgorod branches of the Russian State Research Center of Fisheries and Oceanography (VNIRO) conducted joint comprehensive field studies on Lake Ilmen.

In the second half of July, specialists from the Volga-Caspian branch of the Russian State Research Center “All-Russian Research Institute of Fisheries and Oceanography” (VNIRO) carried out a sturgeon survey voyage in the Northern Caspian on the research vessel “Gidrobiologist”.

In order to assess the productivity of sturgeon species and black-backed herring, monitoring work continued on the R/V Ecolog and Daphnia of the Volga-Caspian branch of the Russian State Research Center of Fisheries and Oceanography (VNIRO) in the bed of the Volga River, in the area of Gusiny Island, in the waters of the Main Bank - a section of the Volga-Caspian Marine Shipping Canal (VCMSC 68-140 km).