Deep-sea goby Neogobius bathybius (Kessler), as one of the objects of coastal fishing of the Caspian Sea

A brief historical reference is given on the state of bullheads and their stocks off the Dagestan coast of the Middle Caspian in the second half of the twentieth century. The data on catches and by-catch during the spawning migration of gobies in nets and seines when fishing for Vimba vimba and herring Clupeidae in the Tersko-Caspian fisheries subdistrict of the Republic of Dagestan 2018-2021 are presented. The biological parameters of the deep-sea goby ponticola bathybius, which is the most numerous in by-catches (90%) during the fishing period, are given. Data on the total and commercial stock of goby fish in this research area are presented.