[논문]SELECT 모델을 이용한 트롤 비교 시험조업법에 의한 망목 선택성에 관한 연구

김성훈; 김형석; 백세나; 김재형; 김병관

doi:10.3796/ksfot.2023.59.2.099

SELECT 모델을 이용한 트롤 비교 시험조업법에 의한 망목 선택성에 관한 연구
A study on the mesh size selectivity by alternate haul method of trawl using the SELECT model 원문보기

수산해양기술연구 = Journal of the Korean Society of Fisheries and Ocean Technology, v.59 no.2, 2023년, pp.99 - 109

김성훈 (부경대학교 해양생산시스템관리학부) , 김형석 (부경대학교 해양생산시스템관리학부) , 백세나 (부경대학교 대학원 수산물리학과) , 김재형 (부경대학교 대학원 수산물리학과) , 김병관 (국립수산과학원 수산공학과)

Abstract ▼ AI-Helper

In this study, a comparative test operation was conducted through the alternate haul method to examine the selectivity of the four mesh sizes (60 mm, 90 mm, 110 mm, and 130 mm) of the trawl codend. The selectivity was analyzed using the SELECT model considering the fishing efficiency (split parameter) of each fishing gear in the comparative test fishing operation in the trawl and the maximum likelihood method for parameter estimation. A selectivity master curve was estimated for several mesh sizes using the extended-SELECT model. As a result of analyzing the selectivity for silver croaker based on the results of three times hauls for each experimental gear, it was found that the size of the fish caught increased as the size of the mesh size increased. When the selectivity for each mesh size analyzed by the SELECT model considering the split ratio was evaluated based on the size of the AIC value, the estimated split model was superior to the equal split model. Based on the master curve, the 50% selection length value was 2.893, which was estimated to be 136 mm based on the mesh size of 60 mm. In some selectivity models, there was a large deviance between observed and theoretical values due to the non-uniformity of the distribution of fished length classes. As a result, it is considered that appropriate sea trials and selectivity evaluation methods with high reliability should be applied to present trawl fishery resource management methods.

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참고문헌 (21)

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SELECT 모델을 이용한 트롤 비교 시험조업법에 의한 망목 선택성에 관한 연구
A study on the mesh size selectivity by alternate haul method of trawl using the SELECT model 원문보기

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SELECT 모델을 이용한 트롤 비교 시험조업법에 의한 망목 선택성에 관한 연구 A study on the mesh size selectivity by alternate haul method of trawl using the SELECT model 원문보기

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김형석 (66) 김병관 (12)

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SELECT 모델을 이용한 트롤 비교 시험조업법에 의한 망목 선택성에 관한 연구
A study on the mesh size selectivity by alternate haul method of trawl using the SELECT model 원문보기