Bycatch and release of pelagic megafauna in industrial trawler fisheries off Northwest Africa
The accidental capture of large animals such as sharks, manta rays, sea turtles, and dolphins in pelagic trawler fisheries remains controversial because it threatens biological diversity in many biogeographical regions, including the subtropical eastern North Atlantic. Bycatch rates observed during...
Published in: | Fisheries Research |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2006
|
Subjects: | |
Online Access: | https://research.wur.nl/en/publications/bycatch-and-release-of-pelagic-megafauna-in-industrial-trawler-fi https://doi.org/10.1016/j.fishres.2006.01.012 |
id |
ftunivwagenin:oai:library.wur.nl:wurpubs/345767 |
---|---|
record_format |
openpolar |
spelling |
ftunivwagenin:oai:library.wur.nl:wurpubs/345767 2024-01-14T10:09:00+01:00 Bycatch and release of pelagic megafauna in industrial trawler fisheries off Northwest Africa Zeeberg, J.J. Corten, A.A.H.M. de Graaf, E. 2006 application/pdf https://research.wur.nl/en/publications/bycatch-and-release-of-pelagic-megafauna-in-industrial-trawler-fi https://doi.org/10.1016/j.fishres.2006.01.012 en eng https://edepot.wur.nl/33053 https://research.wur.nl/en/publications/bycatch-and-release-of-pelagic-megafauna-in-industrial-trawler-fi doi:10.1016/j.fishres.2006.01.012 info:eu-repo/semantics/restrictedAccess Wageningen University & Research Fisheries Research 78 (2006) 2-3 ISSN: 0165-7836 atlantic leatherback turtles ocean sea info:eu-repo/semantics/article Article/Letter to editor info:eu-repo/semantics/publishedVersion 2006 ftunivwagenin https://doi.org/10.1016/j.fishres.2006.01.012 2023-12-20T23:19:51Z The accidental capture of large animals such as sharks, manta rays, sea turtles, and dolphins in pelagic trawler fisheries remains controversial because it threatens biological diversity in many biogeographical regions, including the subtropical eastern North Atlantic. Bycatch rates observed during more than 1400 trawl sets off Mauritania, Northwest Africa, are shown to have been considerable during the past 4 years, with high animal abundance in Summer when the Northwest African shelf is occupied by subtropical water. We demonstrate the urgency for bycatch reduction and evaluate the use of species-selective gear, a conservation method immediately available and immediately effective in waters fished through international access agreements. A modification tested in commercial trawls during the observer program guides pelagic megafauna deflected by a filter to an escape tunnel along the bottom of the trawl. This ¿excluder¿ reduces bycatch mortality of the most vulnerable megafauna species by at least 40¿100% Article in Journal/Newspaper North Atlantic Wageningen UR (University & Research Centre): Digital Library Fisheries Research 78 2-3 186 195 |
institution |
Open Polar |
collection |
Wageningen UR (University & Research Centre): Digital Library |
op_collection_id |
ftunivwagenin |
language |
English |
topic |
atlantic leatherback turtles ocean sea |
spellingShingle |
atlantic leatherback turtles ocean sea Zeeberg, J.J. Corten, A.A.H.M. de Graaf, E. Bycatch and release of pelagic megafauna in industrial trawler fisheries off Northwest Africa |
topic_facet |
atlantic leatherback turtles ocean sea |
description |
The accidental capture of large animals such as sharks, manta rays, sea turtles, and dolphins in pelagic trawler fisheries remains controversial because it threatens biological diversity in many biogeographical regions, including the subtropical eastern North Atlantic. Bycatch rates observed during more than 1400 trawl sets off Mauritania, Northwest Africa, are shown to have been considerable during the past 4 years, with high animal abundance in Summer when the Northwest African shelf is occupied by subtropical water. We demonstrate the urgency for bycatch reduction and evaluate the use of species-selective gear, a conservation method immediately available and immediately effective in waters fished through international access agreements. A modification tested in commercial trawls during the observer program guides pelagic megafauna deflected by a filter to an escape tunnel along the bottom of the trawl. This ¿excluder¿ reduces bycatch mortality of the most vulnerable megafauna species by at least 40¿100% |
format |
Article in Journal/Newspaper |
author |
Zeeberg, J.J. Corten, A.A.H.M. de Graaf, E. |
author_facet |
Zeeberg, J.J. Corten, A.A.H.M. de Graaf, E. |
author_sort |
Zeeberg, J.J. |
title |
Bycatch and release of pelagic megafauna in industrial trawler fisheries off Northwest Africa |
title_short |
Bycatch and release of pelagic megafauna in industrial trawler fisheries off Northwest Africa |
title_full |
Bycatch and release of pelagic megafauna in industrial trawler fisheries off Northwest Africa |
title_fullStr |
Bycatch and release of pelagic megafauna in industrial trawler fisheries off Northwest Africa |
title_full_unstemmed |
Bycatch and release of pelagic megafauna in industrial trawler fisheries off Northwest Africa |
title_sort |
bycatch and release of pelagic megafauna in industrial trawler fisheries off northwest africa |
publishDate |
2006 |
url |
https://research.wur.nl/en/publications/bycatch-and-release-of-pelagic-megafauna-in-industrial-trawler-fi https://doi.org/10.1016/j.fishres.2006.01.012 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Fisheries Research 78 (2006) 2-3 ISSN: 0165-7836 |
op_relation |
https://edepot.wur.nl/33053 https://research.wur.nl/en/publications/bycatch-and-release-of-pelagic-megafauna-in-industrial-trawler-fi doi:10.1016/j.fishres.2006.01.012 |
op_rights |
info:eu-repo/semantics/restrictedAccess Wageningen University & Research |
op_doi |
https://doi.org/10.1016/j.fishres.2006.01.012 |
container_title |
Fisheries Research |
container_volume |
78 |
container_issue |
2-3 |
container_start_page |
186 |
op_container_end_page |
195 |
_version_ |
1788063454562615296 |