United24 Media project states in the release.
In the video, representative of National Natural Park "Tuzlivski Lymany" Ivan Rusev showed the skull of dolphin that died due to Russian presence in the waters of Black Sea.
At least 50,000 dolphins living in the Black Sea have died since February 24. This number of mammals is 20% of total population in the water area of this sea.
"According to Ukrainian legislation, such actions are defined as ecocide, and according to international humanitarian law - it is a war crime," the release noted.