Specialists from the fisheries ecology laboratory of the Tyumen branch of the All-Russian Research Institute of Fisheries and Oceanography (VNIRO) will assess the upwelling migration of whitefish species in the largest spawning river of the Ob-Irtysh basin.

In the first half of August, monitoring studies by specialists of the Volga-Caspian branch of the All-Russian Research Institute of Fisheries and Oceanography (VNIRO) continued in order to study the fattening and migrations of semi-anadromous and river fish in the summer.

Specialists from the Tyumen branch of the All-Russian Research Institute of Fisheries and Oceanography (VNIRO) are completing the collection of ichthyological and hydrobiological material on the Taz River to assess the spawning run of whitefish and stocks of small fish species.

On August 14, employees of the Ural branch of the All-Russian Research Institute of Fisheries and Oceanography (VNIRO) took part in the work of the commission of the Lower Ob territorial administration of the Federal Agency for Fisheries on the implementation of state control over the implementation of measures for the artificial reproduction of aquatic bioresources.

As part of the State assignment, from August 1 to 9, employees of the Saratov branch of the All-Russian Research Institute of Fisheries and Oceanography (VNIRO) conducted comprehensive studies at the Iriklinskoye Reservoir and small water bodies in the Samara and Orenburg regions.

On August 7, as part of joint work of the branches of the North-West region, specialists from the St. Petersburg and Novgorod branches of the All-Russian Research Institute of Fisheries and Oceanography (VNIRO) conducted summer comprehensive field studies on Lake Ilmen in order to implement state monitoring of aquatic biological resources and their habitat in inland waters.

Specialists from the Magadan branch of the All-Russian Research Institute of Fisheries and Oceanography (VNIRO) have completed monitoring of industrial gastropod fishing in the northern part of the Sea of ​​Okhotsk.

The planned summer expedition of the Tatar branch of the All-Russian Research Institute of Fisheries and Oceanography (VNIRO) was completed on schedule on August 6. The scientific group completed the voyage task in full.

 

The purpose of the expedition work was to collect material on the state assignment - topics 4.1. (state monitoring of WBR), 4.2. (preparation of ODU and RV materials), applied topic No. 26 (collection of material on narrow-clawed crayfish) and a topic within the framework of entrepreneurial activity (construction of a bridge crossing near the city of Tolyatti). As part of joint work with the Kazan Federal University, water samples were collected to assess the content of microplastics.

 

During work on the Kuibyshev Reservoir on topic 4.1., hydrobiological material was collected (phytoplankton, zooplankton, zoobenthos, as well as recording hydrological and hydrochemical parameters of the environment) at 10 sections; Topic 4.2. The ichthyofauna was caught using fixed nets with a mesh size of 30 mm to 70 mm, 30 and 60 m long, 1.8 m and 3.5 high. In the water area of ​​the reservoir near the city of Tolyatti, in the area of ​​the bridge crossing, the corresponding contractual studies were conducted to collect hydrobiological, hydrological and ichthyological material.

 

At the Nizhnekamsk reservoir, hydrobiological studies were carried out at 5 sections. Ichthyofauna was caught at 4 sites.

 

All collected material was delivered to the branch laboratories for further office processing.

 

Press service of VNIRO

In the period from 15.07.2024 to 19.07.2024, specialists from the Ural branch of the All-Russian Research Institute of Fisheries and Oceanography (VNIRO) carried out an expedition to the Shegultan and Taltiya rivers of the Sverdlovsk region as part of the Industrial Environmental Monitoring Program for the impact of the activities of JSC Svyatogor on the state of aquatic bioresources and their habitat.

From July 29 to August 2, as part of the State assignment, employees of the Upper Volga Department of the Freshwater Fisheries Branch of the All-Russian Research Institute of Fisheries and Oceanography (VNIRO) conducted ichthyological, hydrobiological, hydrochemical, toxicological and bacteriological surveys on Lake Seliger in the Tver Region as part of a trip.