With the risk of drought, insufficient snowfall and temperatures rising above seasonal norms, marine life in the Black Sea has been adversely affected, and the number of fish has decreased, warns an expert.

The Black Sea has a unique structure. It consists of three layers. The upper layer is an environment up to 50 meters high, with plenty of oxygen, where marine species reside. There is a cold intermediate layer below it, an intermediate layer with a temperature of 8 degrees Celsius. Under the intermediate layer, at the bottom, there is an environment where toxic gases prevail, and no creatures live.