SELECTIVITY EXPERIMENTS ON SOLE WITH DIAMOND AND SQUARE MESH CODENDS IN THE BELGIAN COASTAL BEAM TRAWL FISHERY

被引：43

作者：

FONTEYNE, R

MRABET, R

机构：

[1] Fisheries Research Station, B-8400 Oostende

来源：

FISHERIES RESEARCH | 1992年 / 13卷 / 03期

关键词：

D O I：

10.1016/0165-7836(92)90078-8

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

The selectivity of diamond and square mesh codends in the Belgian coastal beam trawl fishery for sole were compared. Two experiments, involving two different codend lengths were carried out. Contrary to the results obtained with roundfish, no influence of the mesh shape on the codend selectivity could be shown for the flatfish species investigated. It is suggested that the application of square meshes may reduce the catch of small roundfish while maintaining the catch level of the target flatfish species. The length of the codend did not influence the selectivity for sole, but a reduction in benthos by-catch was observed. The selectivity for sole in the coastal beam trawl fishery seems to be lower than the selectivity of the beam trawls used by larger vessels operating in the open sea. This is in agreement with the results of similar experiments, but there is no evidence that the selection factor depends on the amount of by-catch.

引用

页码：221 / 233

页数：13

共 21 条

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