Catches and biology of the deep-sea goby Ponticola bathybius (Kessler, 1877) off the Dagestan coast of the Western Middle Caspian
The deep-water goby Ponticola bathybius was studied near the Dagestan coast of the Middle Caspian sea during spawning migration. Information about catches and by-catch in the second half of the twentieth and early twenty-FIRST centuries is given. The commercial and biological parameters of the goby in the spring period of 2018-2019 are given. Information is provided about the beginning of industrial fishing in 2020.