Cause of extinction of the fish in Zagulba, Buzovna, Mardakan coasts of the Caspian Sea revealed

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The cause of extinction of the fish in Zagulba, Buzovna, Mardakan coasts of the Caspian Sea is a decrease in oxygen in the water as a result of high temperature of weather and rise in temperature of seawater over the recent days, said an official of Service of Protection Biodiversity Mehman Akhundov, Ministry of Ecology and Natural Resources told APA.