Size selection and exploitation pattern of diamond mesh codends with different mesh sizes in demersal trawl fishery for banded scad (Caranx (Atule) kalla) in the South China Sea
文献类型： 外文期刊
作者： Yang, Bingzhong 1 ; Herrmann, Bent 3 ; Yan, Lei 1 ; Li, Jie 1 ; Wang, Teng 1 ;
作者机构： 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou 510300, Peoples R China
2.Minist Agr & Rural Affairs, Key Lab Open Sea Fishery Dev, Guangzhou 510300, Peoples R China
3.SINTEF Ocean, Fishing Gear Technol, Willemoesvej 2, DK-9850 Hirtshals, Denmark
4.Univ Tromso, N-9037 Tromso, Norway
5.Tech Univ Denmark, DTU Aqua, Hirtshals, Denmark
关键词： Size selection; Exploitation pattern; Diamond mesh codend; Banded scad; Caranx (Atule) kalla; South China Sea
期刊名称：REGIONAL STUDIES IN MARINE SCIENCE （ 影响因子：1.624； 五年影响因子：1.962 ）
ISSN： 2352-4855
年卷期： 2021 年 47 卷
页码：
收录情况： SCI
摘要： Size selection and exploitation pattern of diamond-mesh codends with different mesh sizes, 25 to 54 mm, for demersal trawl fishery targeting banded scad (Caranx (Atule) kalla) was tested and compared using the covered codend method in the South China Sea. Our results demonstrated that the selective parameters, L50 (50% retention length) and SR (selection range), would increase as the mesh sizes of codends increased, and the confidence intervals in these parameters became relatively wider when the mesh sizes increasing to 40 mm. The results of exploitation pattern showed that catch efficiency of codends would decrease when the mesh sizes increased. Considering compromise of protecting juvenile fish and the profitability of fishermen, the codend with 30 mm mesh size would be the best choice to target banded scad among all tested codends. Our study will be beneficial to the fishery management in the studied area. (C) 2021 Elsevier B.V. All rights reserved.
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