• 한국어류학회지
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• 제21권2호
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• pp.118-124
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• 2009

2005년부터 2007년까지 북서태평양 황제해산해역에서 한국 트롤어업에 의해 어획된 어획 자료를 수집하여 어류종조성과 생물량의 시 공간 변동을 분석하였다. 어획량은 2005년에 750 mt, 2006년에 460 mt, 2007년에 440 mt로 어획되었다. 2005년부터 2007년까지 어획된 북서태평양 황제해산해역의 우점종은 빛금눈돔(Beryx splendens) 및 민사자구(Pseudopentaceros wheeleri)이었다. 직접자원량추정법인 소해면적법(swept area method)를 이용하여 빛금눈돔과 민사자구의 2005~2007년 동안 3년간 평균 생물량은 각각 791 mt과 266 mt로 추정되었다.

• 수산해양기술연구
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• 제41권3호
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• pp.179-187
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• 2005

This study was conducted in order to the experiment of bottom trawl fisheries in the sea mount of central northern pacific($30^{\circ}-40^{\circ}N$, $170^{\circ}-175^{\circ}E$), during the period of July 1 to August 25, 2004 by commercial trawl ship. Fishing experiment was carried out by bottom trawl, with the codend of 110mm mesh size. The number of 101 test fishing was done in the sea mount of central northern pacific during 56 days and the total catches were 198,593kg as 18 fish species, and CPUE/day and catches/day were 8.3 hours towing time and 3,546kg. Catch ratio according to each fishing ground was higher with the order of B, C, and E, and catches for B was 7,171.0kg during the towing time of 13.2 hours. Main target species were Pseudopentaceros richardsoni and Beryx splendens, there was 14.9% of damage ratio for fishing gears on catching the target fishes inhabiting on the rough sea bottom. Catches by water depth was the order of 300m below, 301-350m, 451-500m and 351-400m. It is thought that there was no problem on the mesh size because most of fishes caught from the experimental fishing was 30cm over.