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정치망의 양망과정에 있어서 멸치어군의 행동에 관한 연구
김문관,정상희양,박정식 제주대학교 해양연구소 1996 해양자원연구소연구보고 Vol.20 No.-
The moving behaviour of anchovy schools (There were small schools of sardine and round-herring in these anchovy schools) in the hauling process of a large scale set-net was investigated using a scanning sonar. in the Kishihata set-net fishing ground located in Nanao city Ishigawa prefecture , Japan from Dec 1st to Dec 4th. 1992. The moving behaviour of anchovy schools in the hauling process a large scale set-net made the term of moving narrowed from the front of the first funnel-net to the second funnel-net as the hauling proceeded. We found that when the ship of picking up the net approched to the second funnel-net, the anchovy school entered in the second bag-net fast hard. The moving speed before hauling and during the hauling process was most of 50cm/sec and below and there was no difference in the moving speed.