The essays in the proposed book outline the reasons for the mass destruction in the second half of the 20th century of the most valuable sturgeon fish in the Azov and Black Seas, which have served as important fisheries since time immemorial. Basic information on the biology, lifestyle and behavior of the most common fish currently caught is considered - flounder, mullet, mullet, Kerch herring, mackerel, horse mackerel, bluefish, Azov goby, Azov anchovy, Black Sea sprat, Azov sprat, shark - katran and an invader from the Far Eastern seas - Pilengas. A description of exotic species, as well as dangerous and poisonous fish, contact with which poses an increased danger to humans, is offered.

In conclusion, you will get acquainted with the Karadag monster, the existence of which in the Black Sea is evidenced by numerous eyewitnesses at all times.