The population of sturgeon recover in the Vologda region
In the Vologda region, continue to restore populations of valuable fish species. Totemsky district in the Sukhona has produced more than 27 thousand fry of endangered sturgeon.
Fishing is an indispensable part of leisure Tomica. In the evenings, on the Sukhona, people with fishing poles can be seen on the shore and on the river itself. Nikolai Nekrasov – the fisherman with the experience. Without a catch does not return home.
It is possible that soon totemskiy fishermen can catch sturgeon. Now this fish is listed in the Red data book of the Vologda region and its fishing is forbidden. But thanks to intensive stocking of rivers but this situation may change.
Young starlet released into the Sukhona. In this river the fish feels the most comfortable. Besides, in the basin of the Sukhona remained the largest population of this valuable sturgeon species.
The next action for the production of juvenile sturgeon for the residents of Totma is a great event. It became possible thanks to the participation of the company “Transneft – Sever”. Fry brought to shore in special containers, then the trays are released into the river. Each of those present wished to take part in the process.
These fry sterlet brought from Kaduy. Here they were raised since February. After the fish reached the sample is the average weight of one individual (5 grams), it became possible to release it into the river. A particular challenge is to determine the suitable day for this.
Alexander Bondarev – head of Department of ecological security and rational nature management of JSC “Transneft – Sever”: “Advance is determined by the temperature in the river Sukhona. The same temperature is achieved in special pools in the fish tank company. The same temperature is maintained in special incubators or vessels, which brought her here. The allowable deviation of not more than two degrees in order to reduce stress and increase survival of fish”.
The fish still have to get used to the new environment. According to experts, the reproducibility sterlet is at the level of 1% is such a small number of fry will be able to reach the reproductive age of 5 years. But this figure may be higher. This is evidenced by the results of the studies.
Merab Stepanov – head of Department of food resources of the Department of agriculture: “We have already held 2 years ago research on the Sukhona. Examined the condition of released fish. Was carried out molecular genetic studies. It was found that quite successfully adapting fish. She acts comfortable.”
Starting in 2014, the stocking of rivers and reservoirs of the Vologda region continues at a fast pace. In 4 years, released more than half a million young starlet, of which more than 600 thousand in the Sukhona. In the future it will help to restore the population of endangered fish, and much credit for this – social partnership in the region with such business partners as “Transneft-Sever”.
According to the materials: вести35.Russia