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NTIS 바로가기한국어업기술학회지 = Journal of the Korean Society of Fisheries Technology, v.52 no.4, 2016년, pp.372 - 385
윤병선 (국립수산과학원 동해수산연구소) , 최영민 (국립수산과학원 고래연구센터) , 손명호 (국립수산과학원 제주수산연구소) , 김종빈 (국립수산과학원 동해수산연구소) , 양재형 (국립수산과학원 동해수산연구소) , 박정호 (국립수산과학원 연근해자원과)
This present study investigated characteristics of distribution and community structure of macrobenthic invertebrates through the survey of commercial Danish seine fisheries from 2011 to 2013. In this study, a total of 28 species were sampled with a mean density of
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핵심어 | 질문 | 논문에서 추출한 답변 |
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동해구기선저인망 어업이란? | 본 연구에 사용된 어구는 어선이 실제 사용하고 있는 어구를 사용하였으며 날개그물, 자루그물과 어포부로 구성되며 길이는 뜸줄 115~130 m, 발줄 120~150 m, 날개 그물을 펼친 길이는 77~85 m였고, 자루그물의 길이는 35 m, 그물코는 35 mm였다. 동해구기선저인망 어업은 투망시 부표를 띄우고 후릿줄과 끝줄을 마름모꼴로 투하한 다음 부표를 건지고 끝줄을 어선이 끌면 후릿줄이 오므라들면서 어군을 그물속으로 몰아 넣는 조업방식이다. 동해구외끌이중형저인망은 일반적으로 1일 4~5회 양망을 하지만, 본 연구에는 수심과 위치를 달리하여 3회를 실시하였다. | |
무척추동물의 수심별 분포특성 및 자원량의 변동이 심해어류자원에 영향을 미친다는 주장의 근거는? | 동해 중부해역은 대륙붕이 좁고 급격하게 수심이 깊어지는 특성으로 깊은 수심에서 무척추동물에 대한 연구가 미비하다. 동해의 심해에 서식하는 무척추동물 중에서 대게, 북쪽분홍새우, 진흙새우, 갈고리흰오징어 등은 상업적으로도 이용되고, 다른 무척추동물과 더불어 심해 어류의 중요한 먹이원으로 작용한다. 따라서 무척추동물의 수심별 분포특성 및 자원량의 변동은 심해어류자원에 큰 영향을 미친다. | |
생물다양성의 측면에서 아극전선 형성해역이 중요한 이유는? | , 2010). 아극전선 형성해역은 한류성, 난류성및 온대성 어종들과 생활사에 따라 연안 정착성, 심해성 및 회유성 어종들이 함께 출현하고 있어, 생물다양성의 측면에서도 매우 중요한 곳이다 (Gong and Son, 1982; Kim and Nam, 2003). |
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