Collecting size-selectivity data for Antarctic krill (Euphausia superba) with a trawl independent towing rig.
For the development of efficient trawls to minimize catch loss, escape mortality and potential negative ecosystem impacts from the fishery, the understanding about trawl selectivity processes are crucial. Small crustaceans are regarded as being less motile than most fish species. Crustaceans also di...
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ftdoajarticles:oai:doaj.org/article:eec1d98c0e4a41caa8723ee3653f61d8 2023-05-15T13:36:28+02:00 Collecting size-selectivity data for Antarctic krill (Euphausia superba) with a trawl independent towing rig. Ludvig A Krag Bjørn A Krafft Arill Engås Bent Herrmann 2018-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0202027 https://doaj.org/article/eec1d98c0e4a41caa8723ee3653f61d8 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC6086474?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0202027 https://doaj.org/article/eec1d98c0e4a41caa8723ee3653f61d8 PLoS ONE, Vol 13, Iss 8, p e0202027 (2018) Medicine R Science Q article 2018 ftdoajarticles https://doi.org/10.1371/journal.pone.0202027 2022-12-31T00:40:20Z For the development of efficient trawls to minimize catch loss, escape mortality and potential negative ecosystem impacts from the fishery, the understanding about trawl selectivity processes are crucial. Small crustaceans are regarded as being less motile than most fish species. Crustaceans also display low levels of active avoidance from trawl netting, which in turn may cause direct contact with netting on multiple occasions on their passage towards the codend increasing the probability for escapement. Full-scaled experiments to estimate gear selectivity are highly resource demanding and are highly technically challenging for several types of fisheries. In this study, we developed and tested a trawl-independent towed-rig construction designed to investigate size selectivity of Antarctic krill (Euphausia superba). The results indicate that valid selectivity estimates can be obtained using this method, but due to the small sample size, results are inconclusive. However, the findings of the current study show a potential for developing easier and more cost-effective ways of investigating and estimating size selectivity of Antarctic krill and other small crustacean species in trawls. Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Euphausia superba Directory of Open Access Journals: DOAJ Articles Antarctic PLOS ONE 13 8 e0202027 |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
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English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Ludvig A Krag Bjørn A Krafft Arill Engås Bent Herrmann Collecting size-selectivity data for Antarctic krill (Euphausia superba) with a trawl independent towing rig. |
topic_facet |
Medicine R Science Q |
description |
For the development of efficient trawls to minimize catch loss, escape mortality and potential negative ecosystem impacts from the fishery, the understanding about trawl selectivity processes are crucial. Small crustaceans are regarded as being less motile than most fish species. Crustaceans also display low levels of active avoidance from trawl netting, which in turn may cause direct contact with netting on multiple occasions on their passage towards the codend increasing the probability for escapement. Full-scaled experiments to estimate gear selectivity are highly resource demanding and are highly technically challenging for several types of fisheries. In this study, we developed and tested a trawl-independent towed-rig construction designed to investigate size selectivity of Antarctic krill (Euphausia superba). The results indicate that valid selectivity estimates can be obtained using this method, but due to the small sample size, results are inconclusive. However, the findings of the current study show a potential for developing easier and more cost-effective ways of investigating and estimating size selectivity of Antarctic krill and other small crustacean species in trawls. |
format |
Article in Journal/Newspaper |
author |
Ludvig A Krag Bjørn A Krafft Arill Engås Bent Herrmann |
author_facet |
Ludvig A Krag Bjørn A Krafft Arill Engås Bent Herrmann |
author_sort |
Ludvig A Krag |
title |
Collecting size-selectivity data for Antarctic krill (Euphausia superba) with a trawl independent towing rig. |
title_short |
Collecting size-selectivity data for Antarctic krill (Euphausia superba) with a trawl independent towing rig. |
title_full |
Collecting size-selectivity data for Antarctic krill (Euphausia superba) with a trawl independent towing rig. |
title_fullStr |
Collecting size-selectivity data for Antarctic krill (Euphausia superba) with a trawl independent towing rig. |
title_full_unstemmed |
Collecting size-selectivity data for Antarctic krill (Euphausia superba) with a trawl independent towing rig. |
title_sort |
collecting size-selectivity data for antarctic krill (euphausia superba) with a trawl independent towing rig. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2018 |
url |
https://doi.org/10.1371/journal.pone.0202027 https://doaj.org/article/eec1d98c0e4a41caa8723ee3653f61d8 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctic Krill Euphausia superba |
genre_facet |
Antarc* Antarctic Antarctic Krill Euphausia superba |
op_source |
PLoS ONE, Vol 13, Iss 8, p e0202027 (2018) |
op_relation |
http://europepmc.org/articles/PMC6086474?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0202027 https://doaj.org/article/eec1d98c0e4a41caa8723ee3653f61d8 |
op_doi |
https://doi.org/10.1371/journal.pone.0202027 |
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PLOS ONE |
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13 |
container_issue |
8 |
container_start_page |
e0202027 |
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1766079114983243776 |