Fish are dying en masse in Russian rivers and lakes

Fish are dying en masse in Russian rivers and lakes
Fish are dying en masse in Russian rivers and lakes
Anonim

The circumstances of the mass death of fish are being investigated in several regions of Russia at once. Dead bodies of water appeared there. The fish were thrown ashore in whole shoals. Experts carried out a number of analyzes - for the content of metals in water, acute toxicity and severe pollution - but no deviations were found. What caused the pestilence?

On the banks of the Volga - a fish apocalypse. Pike perch and perch were the first to perish, followed by roach and rudd. The coast is littered with decaying remains. Kilograms of dead fish are on the sand, in the reeds near the shore, and how many are still at the bottom is unknown. Such a terrifying picture is observed by residents of several regions at once.

In Tatarstan, in Lake Sredniy Kaban, crucian carp, if they swim, then on their side or belly up.

Saratov pond Semkhoz is now called dead.

In the laboratory of Roshydromet, analyzes of water samples taken in places of mass death of fish were carried out.

"The test water was analyzed for metals such as copper, lead, zinc, cadmium, aluminum. No excess was detected. Analysis for acute toxicity. Extremely high pollution and high pollution were not detected," said Galina Zenina, head of the laboratory monitoring of surface water pollution by FSBI "Privolzhskoe UGMS".

Employees of the Institute of Ecology of the Volga Basin explain the sea by the abundant bloom of blue-green algae. They absorb oxygen in large quantities and, when dying, release toxins. As a result, the fish becomes unable to breathe. The root cause of everything is heat. The water temperature in the Volga is now plus 27 degrees. In small rivers, it is even higher.

"The abundant algal bloom is directly related to the temperature regime. During this period, there is an abnormal heat. This caused an outbreak of algae bloom. As a result, a massive fish death occurred," said Alexander Fayzulin, Deputy Director for Science of the Institute of Ecology of the Volga Basin, a branch of the Samara Center of the Russian Federation. Academy of Sciences. "But we only see the tip of the iceberg. The problem is actually bigger."

Dying fish poses a danger to other species of animals - the decomposition of such a large number of remains threatens with toxic water pollution.

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