Ontogenetic partial migration is associated with environmental drivers and influences fisheries interactions in a marine predator
Abstract The ability to predict animal movement based on environmental change is essential for understanding the dynamic nature of their spatial ecology, and in turn the effectiveness of conservation strategies. We used a large marine predator that displays partial migration (the tiger shark Galeoce...
Published in: | ICES Journal of Marine Science |
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Language: | English |
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Oxford University Press (OUP)
2018
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsx238 http://academic.oup.com/icesjms/article-pdf/75/4/1383/31237410/fsx238.pdf |
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croxfordunivpr:10.1093/icesjms/fsx238 2024-09-15T18:26:22+00:00 Ontogenetic partial migration is associated with environmental drivers and influences fisheries interactions in a marine predator Lea, James S E Wetherbee, Bradley M Sousa, Lara L Aming, Choy Burnie, Neil Humphries, Nicolas E Queiroz, Nuno Harvey, Guy M Sims, David W Shivji, Mahmood S Watson, James Guy Harvey Research Institute Shark Foundation Natural Environment Research Council Fundação para a Ciência e a Tecnologia FCT Investigator Fellowship Marine Biological Association MBA Senior Research Fellowship 2018 http://dx.doi.org/10.1093/icesjms/fsx238 http://academic.oup.com/icesjms/article-pdf/75/4/1383/31237410/fsx238.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model ICES Journal of Marine Science volume 75, issue 4, page 1383-1392 ISSN 1054-3139 1095-9289 journal-article 2018 croxfordunivpr https://doi.org/10.1093/icesjms/fsx238 2024-08-12T04:25:27Z Abstract The ability to predict animal movement based on environmental change is essential for understanding the dynamic nature of their spatial ecology, and in turn the effectiveness of conservation strategies. We used a large marine predator that displays partial migration (the tiger shark Galeocerdo cuvier) as a model to test the role of oceanic conditions in predicting the space-use of different size classes. By using generalized additive mixed models (GAMMs), we revealed that environmental variables (sea surface temperature, primary productivity, thermal fronts, and bathymetry) had much greater predictive power for the movements of large, migratory tiger sharks than for small, resident individuals. We also found that coverage of tiger shark movements within “shark sanctuaries” (protected areas specifically for sharks) in the northwest Atlantic could be increased from 12 to 52% through inclusion of Bermuda’s waters. However, as large tiger sharks are migratory, over 80% of potential longline fisheries interactions would still occur outside the boundaries of even the expanded protected areas. This emphasises that management of highly migratory species needs to be dynamic and account for changing interactions with fisheries over time, which in a changing climate may rely on predicting movements based on oceanic conditions to be effective. Article in Journal/Newspaper Northwest Atlantic Oxford University Press ICES Journal of Marine Science 75 4 1383 1392 |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
Abstract The ability to predict animal movement based on environmental change is essential for understanding the dynamic nature of their spatial ecology, and in turn the effectiveness of conservation strategies. We used a large marine predator that displays partial migration (the tiger shark Galeocerdo cuvier) as a model to test the role of oceanic conditions in predicting the space-use of different size classes. By using generalized additive mixed models (GAMMs), we revealed that environmental variables (sea surface temperature, primary productivity, thermal fronts, and bathymetry) had much greater predictive power for the movements of large, migratory tiger sharks than for small, resident individuals. We also found that coverage of tiger shark movements within “shark sanctuaries” (protected areas specifically for sharks) in the northwest Atlantic could be increased from 12 to 52% through inclusion of Bermuda’s waters. However, as large tiger sharks are migratory, over 80% of potential longline fisheries interactions would still occur outside the boundaries of even the expanded protected areas. This emphasises that management of highly migratory species needs to be dynamic and account for changing interactions with fisheries over time, which in a changing climate may rely on predicting movements based on oceanic conditions to be effective. |
author2 |
Watson, James Guy Harvey Research Institute Shark Foundation Natural Environment Research Council Fundação para a Ciência e a Tecnologia FCT Investigator Fellowship Marine Biological Association MBA Senior Research Fellowship |
format |
Article in Journal/Newspaper |
author |
Lea, James S E Wetherbee, Bradley M Sousa, Lara L Aming, Choy Burnie, Neil Humphries, Nicolas E Queiroz, Nuno Harvey, Guy M Sims, David W Shivji, Mahmood S |
spellingShingle |
Lea, James S E Wetherbee, Bradley M Sousa, Lara L Aming, Choy Burnie, Neil Humphries, Nicolas E Queiroz, Nuno Harvey, Guy M Sims, David W Shivji, Mahmood S Ontogenetic partial migration is associated with environmental drivers and influences fisheries interactions in a marine predator |
author_facet |
Lea, James S E Wetherbee, Bradley M Sousa, Lara L Aming, Choy Burnie, Neil Humphries, Nicolas E Queiroz, Nuno Harvey, Guy M Sims, David W Shivji, Mahmood S |
author_sort |
Lea, James S E |
title |
Ontogenetic partial migration is associated with environmental drivers and influences fisheries interactions in a marine predator |
title_short |
Ontogenetic partial migration is associated with environmental drivers and influences fisheries interactions in a marine predator |
title_full |
Ontogenetic partial migration is associated with environmental drivers and influences fisheries interactions in a marine predator |
title_fullStr |
Ontogenetic partial migration is associated with environmental drivers and influences fisheries interactions in a marine predator |
title_full_unstemmed |
Ontogenetic partial migration is associated with environmental drivers and influences fisheries interactions in a marine predator |
title_sort |
ontogenetic partial migration is associated with environmental drivers and influences fisheries interactions in a marine predator |
publisher |
Oxford University Press (OUP) |
publishDate |
2018 |
url |
http://dx.doi.org/10.1093/icesjms/fsx238 http://academic.oup.com/icesjms/article-pdf/75/4/1383/31237410/fsx238.pdf |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_source |
ICES Journal of Marine Science volume 75, issue 4, page 1383-1392 ISSN 1054-3139 1095-9289 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
op_doi |
https://doi.org/10.1093/icesjms/fsx238 |
container_title |
ICES Journal of Marine Science |
container_volume |
75 |
container_issue |
4 |
container_start_page |
1383 |
op_container_end_page |
1392 |
_version_ |
1810466853333499904 |