Drag from fishing gear entangling North Atlantic right whales
Abstract Lethal and sublethal fishing gear entanglement is pervasive in North Atlantic right whales ( Eubalaena glacialis ). Entanglement can lead to direct injury and is likely to incur substantial energetic costs. This study (1) evaluates drag characteristics of entangled right whales, (2) context...
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crwiley:10.1111/mms.12292 2024-03-24T09:01:44+00:00 Drag from fishing gear entangling North Atlantic right whales van der Hoop, Julie M. Corkeron, Peter Kenney, John Landry, Scott Morin, David Smith, Jamison Moore, Michael J. Natural Sciences and Engineering Research Council of Canada 2015 http://dx.doi.org/10.1111/mms.12292 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmms.12292 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mms.12292 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Mammal Science volume 32, issue 2, page 619-642 ISSN 0824-0469 1748-7692 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2015 crwiley https://doi.org/10.1111/mms.12292 2024-02-28T02:17:38Z Abstract Lethal and sublethal fishing gear entanglement is pervasive in North Atlantic right whales ( Eubalaena glacialis ). Entanglement can lead to direct injury and is likely to incur substantial energetic costs. This study (1) evaluates drag characteristics of entangled right whales, (2) contextualizes gear drag measurements for individual whales, and (3) quantifies the benefits of partial disentanglement. A load cell measured drag forces on 15 sets of fishing gear removed from entangled right whales, a towed satellite telemetry buoy, and 200 m of polypropylene line as it was shortened to 25 m, as they were towed behind a vessel at ~0.77, 1.3, and 2.1 m/s (~1.5, 2.5, and 4 knots) and ~0, 3, and 6 m depth. Mean drag ranges from 8.5 N to 315 N, and can be predicted from the dry weight or length of the gear. Combining gear drag measurements with theoretical estimates of drag on whales' bodies suggests that on average, entanglement increases drag and propulsive power by 1.47 fold. Reducing trailing line length by 75% can reduce parasitic gear drag by 85%, reinforcing current disentanglement response practices. These drag measurements can be incorporated into disentanglement response, serious injury determination, and evaluation of sublethal effects on population dynamics. Article in Journal/Newspaper Eubalaena glacialis North Atlantic Wiley Online Library Marine Mammal Science 32 2 619 642 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics van der Hoop, Julie M. Corkeron, Peter Kenney, John Landry, Scott Morin, David Smith, Jamison Moore, Michael J. Drag from fishing gear entangling North Atlantic right whales |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Abstract Lethal and sublethal fishing gear entanglement is pervasive in North Atlantic right whales ( Eubalaena glacialis ). Entanglement can lead to direct injury and is likely to incur substantial energetic costs. This study (1) evaluates drag characteristics of entangled right whales, (2) contextualizes gear drag measurements for individual whales, and (3) quantifies the benefits of partial disentanglement. A load cell measured drag forces on 15 sets of fishing gear removed from entangled right whales, a towed satellite telemetry buoy, and 200 m of polypropylene line as it was shortened to 25 m, as they were towed behind a vessel at ~0.77, 1.3, and 2.1 m/s (~1.5, 2.5, and 4 knots) and ~0, 3, and 6 m depth. Mean drag ranges from 8.5 N to 315 N, and can be predicted from the dry weight or length of the gear. Combining gear drag measurements with theoretical estimates of drag on whales' bodies suggests that on average, entanglement increases drag and propulsive power by 1.47 fold. Reducing trailing line length by 75% can reduce parasitic gear drag by 85%, reinforcing current disentanglement response practices. These drag measurements can be incorporated into disentanglement response, serious injury determination, and evaluation of sublethal effects on population dynamics. |
author2 |
Natural Sciences and Engineering Research Council of Canada |
format |
Article in Journal/Newspaper |
author |
van der Hoop, Julie M. Corkeron, Peter Kenney, John Landry, Scott Morin, David Smith, Jamison Moore, Michael J. |
author_facet |
van der Hoop, Julie M. Corkeron, Peter Kenney, John Landry, Scott Morin, David Smith, Jamison Moore, Michael J. |
author_sort |
van der Hoop, Julie M. |
title |
Drag from fishing gear entangling North Atlantic right whales |
title_short |
Drag from fishing gear entangling North Atlantic right whales |
title_full |
Drag from fishing gear entangling North Atlantic right whales |
title_fullStr |
Drag from fishing gear entangling North Atlantic right whales |
title_full_unstemmed |
Drag from fishing gear entangling North Atlantic right whales |
title_sort |
drag from fishing gear entangling north atlantic right whales |
publisher |
Wiley |
publishDate |
2015 |
url |
http://dx.doi.org/10.1111/mms.12292 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmms.12292 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mms.12292 |
genre |
Eubalaena glacialis North Atlantic |
genre_facet |
Eubalaena glacialis North Atlantic |
op_source |
Marine Mammal Science volume 32, issue 2, page 619-642 ISSN 0824-0469 1748-7692 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/mms.12292 |
container_title |
Marine Mammal Science |
container_volume |
32 |
container_issue |
2 |
container_start_page |
619 |
op_container_end_page |
642 |
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1794401927399735296 |