Application of a Controlled Aquarium Experiment to Assess the Effect of Mesh Sizes and Mesh Opening Angles on the Netting Selectivity of Antarctic Krill ( Euphausia superba )
Understanding the interactions between target species and netting is paramount for increasing the sustainability of trawling activities. The selectivity of the utilized netting depends on the sizes and opening angles of the mesh. The effects of the mesh size and mesh opening angle on the fishing sel...
Published in: | Journal of Marine Science and Engineering |
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2021
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Online Access: | https://doi.org/10.3390/jmse9040372 https://doaj.org/article/38808b177469451b8dec609c337cf44e |
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ftdoajarticles:oai:doaj.org/article:38808b177469451b8dec609c337cf44e 2023-05-15T14:01:48+02:00 Application of a Controlled Aquarium Experiment to Assess the Effect of Mesh Sizes and Mesh Opening Angles on the Netting Selectivity of Antarctic Krill ( Euphausia superba ) Zhongqiu Wang Hao Tang Liuxiong Xu Jian Zhang Fuxiang Hu 2021-04-01T00:00:00Z https://doi.org/10.3390/jmse9040372 https://doaj.org/article/38808b177469451b8dec609c337cf44e EN eng MDPI AG https://www.mdpi.com/2077-1312/9/4/372 https://doaj.org/toc/2077-1312 doi:10.3390/jmse9040372 2077-1312 https://doaj.org/article/38808b177469451b8dec609c337cf44e Journal of Marine Science and Engineering, Vol 9, Iss 372, p 372 (2021) trawling fisheries fishing gear zooplankton liner netting size selection Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 article 2021 ftdoajarticles https://doi.org/10.3390/jmse9040372 2022-12-31T05:37:50Z Understanding the interactions between target species and netting is paramount for increasing the sustainability of trawling activities. The selectivity of the utilized netting depends on the sizes and opening angles of the mesh. The effects of the mesh size and mesh opening angle on the fishing selectivity of Antarctic krill ( Euphausia superba ) were assessed via micro-cosmos experiments. The results show that both the absolute abundance and the incidence of larger krill individuals passing through experimental panels are proportional to the utilized mesh size. Krill individuals larger than 35 mm passed through experimental panels at mesh opening angles larger than 50° for a 15 mm mesh size, 35° for a 20 mm mesh size and 20° for a 30 mm mesh size. Additionally, all L 50 values increased with an increasing mesh size and an increasing mesh opening angle at the same mesh size. Furthermore, the selection range increased with an increasing mesh size and with an increasing mesh opening angle at the same mesh size. This paper provides scientific guidance for the choice of liner mesh sizes of krill trawl with the aim to improve fishing efficiency while minimizing fishing losses and potential negative ecosystem impacts from fisheries. Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Euphausia superba Directory of Open Access Journals: DOAJ Articles Antarctic Journal of Marine Science and Engineering 9 4 372 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
trawling fisheries fishing gear zooplankton liner netting size selection Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 |
spellingShingle |
trawling fisheries fishing gear zooplankton liner netting size selection Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 Zhongqiu Wang Hao Tang Liuxiong Xu Jian Zhang Fuxiang Hu Application of a Controlled Aquarium Experiment to Assess the Effect of Mesh Sizes and Mesh Opening Angles on the Netting Selectivity of Antarctic Krill ( Euphausia superba ) |
topic_facet |
trawling fisheries fishing gear zooplankton liner netting size selection Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 |
description |
Understanding the interactions between target species and netting is paramount for increasing the sustainability of trawling activities. The selectivity of the utilized netting depends on the sizes and opening angles of the mesh. The effects of the mesh size and mesh opening angle on the fishing selectivity of Antarctic krill ( Euphausia superba ) were assessed via micro-cosmos experiments. The results show that both the absolute abundance and the incidence of larger krill individuals passing through experimental panels are proportional to the utilized mesh size. Krill individuals larger than 35 mm passed through experimental panels at mesh opening angles larger than 50° for a 15 mm mesh size, 35° for a 20 mm mesh size and 20° for a 30 mm mesh size. Additionally, all L 50 values increased with an increasing mesh size and an increasing mesh opening angle at the same mesh size. Furthermore, the selection range increased with an increasing mesh size and with an increasing mesh opening angle at the same mesh size. This paper provides scientific guidance for the choice of liner mesh sizes of krill trawl with the aim to improve fishing efficiency while minimizing fishing losses and potential negative ecosystem impacts from fisheries. |
format |
Article in Journal/Newspaper |
author |
Zhongqiu Wang Hao Tang Liuxiong Xu Jian Zhang Fuxiang Hu |
author_facet |
Zhongqiu Wang Hao Tang Liuxiong Xu Jian Zhang Fuxiang Hu |
author_sort |
Zhongqiu Wang |
title |
Application of a Controlled Aquarium Experiment to Assess the Effect of Mesh Sizes and Mesh Opening Angles on the Netting Selectivity of Antarctic Krill ( Euphausia superba ) |
title_short |
Application of a Controlled Aquarium Experiment to Assess the Effect of Mesh Sizes and Mesh Opening Angles on the Netting Selectivity of Antarctic Krill ( Euphausia superba ) |
title_full |
Application of a Controlled Aquarium Experiment to Assess the Effect of Mesh Sizes and Mesh Opening Angles on the Netting Selectivity of Antarctic Krill ( Euphausia superba ) |
title_fullStr |
Application of a Controlled Aquarium Experiment to Assess the Effect of Mesh Sizes and Mesh Opening Angles on the Netting Selectivity of Antarctic Krill ( Euphausia superba ) |
title_full_unstemmed |
Application of a Controlled Aquarium Experiment to Assess the Effect of Mesh Sizes and Mesh Opening Angles on the Netting Selectivity of Antarctic Krill ( Euphausia superba ) |
title_sort |
application of a controlled aquarium experiment to assess the effect of mesh sizes and mesh opening angles on the netting selectivity of antarctic krill ( euphausia superba ) |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doi.org/10.3390/jmse9040372 https://doaj.org/article/38808b177469451b8dec609c337cf44e |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctic Krill Euphausia superba |
genre_facet |
Antarc* Antarctic Antarctic Krill Euphausia superba |
op_source |
Journal of Marine Science and Engineering, Vol 9, Iss 372, p 372 (2021) |
op_relation |
https://www.mdpi.com/2077-1312/9/4/372 https://doaj.org/toc/2077-1312 doi:10.3390/jmse9040372 2077-1312 https://doaj.org/article/38808b177469451b8dec609c337cf44e |
op_doi |
https://doi.org/10.3390/jmse9040372 |
container_title |
Journal of Marine Science and Engineering |
container_volume |
9 |
container_issue |
4 |
container_start_page |
372 |
_version_ |
1766271836672229376 |