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METHOD OF DETERMINATION OF POSITION OF TRAWL RELATIVE TO SHOAL OF FISH IN COURSE OF TRAWLING
METHOD OF DETERMINATION OF POSITION OF TRAWL RELATIVE TO SHOAL OF FISH IN COURSE OF TRAWLING
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机译:确定拖网过程中与鱼滩有关的拖网位置的方法
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摘要
FIELD: commercial fishery; check of characteristics and trawl system in course of trawling. SUBSTANCE: determination of position of trawl relative to shoals of fish is effected by means of radiation and reception of acoustic impulses; finding of fish is effected simultaneously with location of one or several acoustic reflectors or receivers-transponders mounted on trawl or trawl beams at simultaneous representation of signals of acoustic reflectors or receivers-transponders received from trawl or trawl beams on display of horizontal action fish finder together with echo signals from fish shoals. EFFECT: enhanced reliability. 2 dwg
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