Longline fishing in the Barents Sea and the possibility of its use in the cod (Gadus morhua morhua) stocks management
2019
Borisov, V.M. | Chumakov, A.K. | Ulchenko, V.A.
Based on the data of the industry monitoring system of Rosrybolovstvo, the Ministry of Trade, Industry and Fisheries of Norway, the materials of the ICES Working Group on Arctic Fishing (AFWG) and the protocols of the Joint Russian-Norwegian Fishery Commission (JRNFC), as well as data collected by the scientific observers of VNIRO on longline vessels of the «Persei» Company in 2013–2018, the current state of Russian and Norwegian fishing in the Barents Sea, carried out by bottom fishing gears, especially longline fishing, is analyzed. Since longline fishing is much more focused on large, older fish, it is suggested that this specificity of longline fishing is used to reduce the increased cannibalism in the cod population in recent years. In our opinion, the phenomenon of cannibalism against the relatively favorable hydrological conditions may be the main reason for the observed next reduction in the cod stock. Measures aimed at expanding the scale of longline fishing, especially domestic fishing, which currently accounts for no more than 6%, would moderate the negative impact of cannibalism on cod stocks
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