Catch Pattern for Antarctic krill (Euphausia superba) of Different Commercial Trawls in Similar Times and Overlapping Fishing Grounds

نویسندگان

چکیده

Antarctic krill ( Euphausia superba ) is harvested using different design midwater trawls. Knowing the selective properties between trawls crucial information for management of resources. This study compared catch patterns commercial at similar times and overlapping fishing grounds based on scientific data collected by observers onboard trawlers Long Teng (LT) Fu Rong Hai (FRH). The results showed significant differences in length-dependent densities cumulative two length range catches from LT's trawl was wider than that FRH's trawl. Furthermore, would consist a larger proportion smaller caught significantly higher proportions below 38 mm Even, substantial numbers <30 mm, whereas very few them. main factors causing difference pattern were inferred to be related gear including mesh sizes used. this enhance quality comparative analysis understanding selectivity configuration used harvesting krill.

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ژورنال

عنوان ژورنال: Frontiers in Marine Science

سال: 2021

ISSN: ['2296-7745']

DOI: https://doi.org/10.3389/fmars.2021.670663