Exploratory Fishing and Scouting
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THE WATER BODY AND ENVIRONMENTAL FACTORS
COMMERCIAL SHOALS AND ACCUMULATIONS
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anchovy assessment Atlantic background survey banks Barents Sea behavior benthos Bering Sea Black Sea bottom fish bottom relief boundaries charts coast commercial items commercial regions commercial shoals composition concentrations continental slope control catches control trawlings crab cruise currents demersal dense density depths detection determined distribution drift nets echo recordings echo sounder echograms exploration exploratory fishing fattening Figure fishery fishing conditions fishing region fishing vessels fleet flounder forage forecast groups Gulf hydroacoustic hydrological illumination Island isobaths Izdatel'stvo longlines mackerel marine methods move North northern occur ocean perch operations oxygen Pacific Pacific saury pelagic performed period plankton reconnaissance research vessels Rybnoe Khozyaistvo Sakhalin salinity saury scad scouting vessels Sea of Japan Sea of Okhotsk sectors shelf shoal-type shoals shore slope sonar sparse accumulations spawning species specimens speed summer surface layer tuna underwater upwelling vertical migrations visual observations walleye pollock warm water temperature whales winter zone