Factors affecting the survival of harbor ( Phoca vitulina ) and gray seal ( Halichoerus grypus ) juveniles admitted for rehabilitation in the UK and Ireland
From Wiley via Jisc Publications Router History: received 2021-06-15, accepted 2022-09-13, pub-electronic 2022-10-14 Article version: VoR Publication status: Published Abstract: The UK shores are home to approximately 40% of the world's population of gray seals (Halichoerus grypus) and 40% of E...
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John Wiley & Sons, Inc.
2022
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ftchesteruniv:oai:chesterrep.openrepository.com:10034/627233 2023-05-15T17:58:53+02:00 Factors affecting the survival of harbor ( Phoca vitulina ) and gray seal ( Halichoerus grypus ) juveniles admitted for rehabilitation in the UK and Ireland Zatrak, Michal Brittain, Sam Himmelreich, Lauren Lovick‐Earle, Susie Pizzi, Romain Shaw, Kirsty J. Grant, Robyn A. Geary, Matthew 2022-09-13 http://hdl.handle.net/10034/627233 https://chesterrep.openrepository.com/bitstream/handle/10034/627233/mms.12983.xml?sequence=2 https://chesterrep.openrepository.com/bitstream/handle/10034/627233/mms.12983.pdf?sequence=3 en eng John Wiley & Sons, Inc. https://chesterrep.openrepository.com/bitstream/handle/10034/627233/mms.12983.xml?sequence=2 https://chesterrep.openrepository.com/bitstream/handle/10034/627233/mms.12983.pdf?sequence=3 Marine Mammal Science http://hdl.handle.net/10034/627233 Licence for VoR version of this article: http://creativecommons.org/licenses/by/4.0/ CC-BY issn: 0824-0469 issn: 1748-7692 ARTICLE ARTICLES health juvenile survival presenting conditions rehabilitation records rescue stranding article 2022 ftchesteruniv 2022-11-17T23:40:31Z From Wiley via Jisc Publications Router History: received 2021-06-15, accepted 2022-09-13, pub-electronic 2022-10-14 Article version: VoR Publication status: Published Abstract: The UK shores are home to approximately 40% of the world's population of gray seals (Halichoerus grypus) and 40% of Europe's harbor seals (Phoca vitulina). Stranded juvenile seals of both species are frequently rescued and admitted for rehabilitation. This study investigates the causes of P. vitulina and H. grypus admittance to rehabilitation centers in the UK and Ireland and identifies factors that can affect juvenile seal survival. Rehabilitation records for 1,435 P. vitulina and 2,691 H. grypus were used from five rehabilitation centers from 1988 through 2020. The most common nonexclusive reasons for seal admission to rehabilitation centers included malnourishment (37%), injuries (37%), maternal abandonment (15%), lethargy (12%), and parasite infections (8%). A mixed effects logistic regression model showed that H. grypus had 4.55 times higher survival odds than P. vitulina and that the odds of survival to release multiplied by 1.07 for every kilogram over their age‐predicted weight. This weight‐dependent survival could be attributed to the importance of fat in thermoregulation, hydration, and buoyancy during foraging. We recommend that seal rehabilitators pay special attention to the weight of admitted juvenile seals during triage and treatment to enhance their odds of survival and consequent release to the wild. Article in Journal/Newspaper Phoca vitulina University of Chester: Chester Digital Repository |
institution |
Open Polar |
collection |
University of Chester: Chester Digital Repository |
op_collection_id |
ftchesteruniv |
language |
English |
topic |
ARTICLE ARTICLES health juvenile survival presenting conditions rehabilitation records rescue stranding |
spellingShingle |
ARTICLE ARTICLES health juvenile survival presenting conditions rehabilitation records rescue stranding Zatrak, Michal Brittain, Sam Himmelreich, Lauren Lovick‐Earle, Susie Pizzi, Romain Shaw, Kirsty J. Grant, Robyn A. Geary, Matthew Factors affecting the survival of harbor ( Phoca vitulina ) and gray seal ( Halichoerus grypus ) juveniles admitted for rehabilitation in the UK and Ireland |
topic_facet |
ARTICLE ARTICLES health juvenile survival presenting conditions rehabilitation records rescue stranding |
description |
From Wiley via Jisc Publications Router History: received 2021-06-15, accepted 2022-09-13, pub-electronic 2022-10-14 Article version: VoR Publication status: Published Abstract: The UK shores are home to approximately 40% of the world's population of gray seals (Halichoerus grypus) and 40% of Europe's harbor seals (Phoca vitulina). Stranded juvenile seals of both species are frequently rescued and admitted for rehabilitation. This study investigates the causes of P. vitulina and H. grypus admittance to rehabilitation centers in the UK and Ireland and identifies factors that can affect juvenile seal survival. Rehabilitation records for 1,435 P. vitulina and 2,691 H. grypus were used from five rehabilitation centers from 1988 through 2020. The most common nonexclusive reasons for seal admission to rehabilitation centers included malnourishment (37%), injuries (37%), maternal abandonment (15%), lethargy (12%), and parasite infections (8%). A mixed effects logistic regression model showed that H. grypus had 4.55 times higher survival odds than P. vitulina and that the odds of survival to release multiplied by 1.07 for every kilogram over their age‐predicted weight. This weight‐dependent survival could be attributed to the importance of fat in thermoregulation, hydration, and buoyancy during foraging. We recommend that seal rehabilitators pay special attention to the weight of admitted juvenile seals during triage and treatment to enhance their odds of survival and consequent release to the wild. |
format |
Article in Journal/Newspaper |
author |
Zatrak, Michal Brittain, Sam Himmelreich, Lauren Lovick‐Earle, Susie Pizzi, Romain Shaw, Kirsty J. Grant, Robyn A. Geary, Matthew |
author_facet |
Zatrak, Michal Brittain, Sam Himmelreich, Lauren Lovick‐Earle, Susie Pizzi, Romain Shaw, Kirsty J. Grant, Robyn A. Geary, Matthew |
author_sort |
Zatrak, Michal |
title |
Factors affecting the survival of harbor ( Phoca vitulina ) and gray seal ( Halichoerus grypus ) juveniles admitted for rehabilitation in the UK and Ireland |
title_short |
Factors affecting the survival of harbor ( Phoca vitulina ) and gray seal ( Halichoerus grypus ) juveniles admitted for rehabilitation in the UK and Ireland |
title_full |
Factors affecting the survival of harbor ( Phoca vitulina ) and gray seal ( Halichoerus grypus ) juveniles admitted for rehabilitation in the UK and Ireland |
title_fullStr |
Factors affecting the survival of harbor ( Phoca vitulina ) and gray seal ( Halichoerus grypus ) juveniles admitted for rehabilitation in the UK and Ireland |
title_full_unstemmed |
Factors affecting the survival of harbor ( Phoca vitulina ) and gray seal ( Halichoerus grypus ) juveniles admitted for rehabilitation in the UK and Ireland |
title_sort |
factors affecting the survival of harbor ( phoca vitulina ) and gray seal ( halichoerus grypus ) juveniles admitted for rehabilitation in the uk and ireland |
publisher |
John Wiley & Sons, Inc. |
publishDate |
2022 |
url |
http://hdl.handle.net/10034/627233 https://chesterrep.openrepository.com/bitstream/handle/10034/627233/mms.12983.xml?sequence=2 https://chesterrep.openrepository.com/bitstream/handle/10034/627233/mms.12983.pdf?sequence=3 |
genre |
Phoca vitulina |
genre_facet |
Phoca vitulina |
op_source |
issn: 0824-0469 issn: 1748-7692 |
op_relation |
https://chesterrep.openrepository.com/bitstream/handle/10034/627233/mms.12983.xml?sequence=2 https://chesterrep.openrepository.com/bitstream/handle/10034/627233/mms.12983.pdf?sequence=3 Marine Mammal Science http://hdl.handle.net/10034/627233 |
op_rights |
Licence for VoR version of this article: http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
_version_ |
1766167595762843648 |