Fishery and stock dynamics of walleye pollock Theragra chaclocgamma: whether «turbulence» is possible?
2014
Bulatov, O.A.
Walleye pollock is the second most extensively fished species in the world. The major fishing grounds are located in the Bering and Okhotsk Seas. Large-scale fishery starting in the 1960s and continues to date with average annual landings over this 50-year period of 2.5 million tons. Yet over this period catches were characterized by considerable variability, which makes fishery management activities difficult. Existing data suggest a close relationship between PDO index and the fishable biomass in 1978–2013, which allows quantitative estimates of future trends in the biomass and consequently annual catch of walleye pollock. Expected cooling of Northern Pacific will increase the biomass in Sea of Japan and decrease it in Bering Sea and Sea of Okhotsk
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