Fin whale survival and abundance in the Gulf of St. Lawrence, Canada
The fin whale Balaenoptera physalus , the second largest species in the animal kingdom to have lived on Earth, was heavily targeted during the industrial whaling era. North Atlantic whaling for this species ended in 1987 and it is unclear if the populations are recovering. The stock structure in the...
Published in: | Endangered Species Research |
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Main Authors: | , , , , |
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Language: | English |
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2014
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/fin-whale-survival-and-abundance-in-the-gulf-of-st-lawrence-canada(339f4148-b64d-40a7-bc86-46b58aeacae3).html https://doi.org/10.3354/esr00571 https://research-repository.st-andrews.ac.uk/bitstream/10023/17174/1/Ramp_etal_2014_MEPS_FinWhaleSurvivalAbundance.pdf |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/339f4148-b64d-40a7-bc86-46b58aeacae3 2023-05-15T15:36:39+02:00 Fin whale survival and abundance in the Gulf of St. Lawrence, Canada Ramp, Christian Delarue, Julien Bérubé, Martine Hammond, Philip Steven Sears, Richard 2014 application/pdf https://risweb.st-andrews.ac.uk/portal/en/researchoutput/fin-whale-survival-and-abundance-in-the-gulf-of-st-lawrence-canada(339f4148-b64d-40a7-bc86-46b58aeacae3).html https://doi.org/10.3354/esr00571 https://research-repository.st-andrews.ac.uk/bitstream/10023/17174/1/Ramp_etal_2014_MEPS_FinWhaleSurvivalAbundance.pdf eng eng info:eu-repo/semantics/openAccess Ramp , C , Delarue , J , Bérubé , M , Hammond , P S & Sears , R 2014 , ' Fin whale survival and abundance in the Gulf of St. Lawrence, Canada ' , Endangered Species Research , vol. 23 , no. 2 , pp. 125-132 . https://doi.org/10.3354/esr00571 Fin whale Mark-recapture Survival Abundance Modeling article 2014 ftunstandrewcris https://doi.org/10.3354/esr00571 2022-10-31T06:43:35Z The fin whale Balaenoptera physalus , the second largest species in the animal kingdom to have lived on Earth, was heavily targeted during the industrial whaling era. North Atlantic whaling for this species ended in 1987 and it is unclear if the populations are recovering. The stock structure in the North Atlantic is still under debate, but several lines of evidence suggest that fin whales in the Gulf of St. Lawrence may form a discrete stock with limited exchange with the rest of the North Atlantic. We applied mark-recapture models to 21 yr of photo-identification data from the Jacques-Cartier Passage to estimate the abundance and, for the first time, a survival rate based on live re-sightings for this stock of fin whales. Using the Cormack-Jolly-Seber model, we estimated a unisex non-calf apparent survival rate of 0.955 (95% CI: 0.936 to 0.969) for the period 1990 to 2010, declining in the last 4 yr of the study. The reduced survivorship was likely caused by a lower site fidelity combined with a higher mortality. The POPAN model yielded a super-population estimate of 328 individuals (95% CI: 306 to 350) for the period 2004 to 2010, and confirmed the negative trend in apparent survival and annual abundance, indicating that the population has not increased since the last large-scale surveys from 1974 and 1997. Article in Journal/Newspaper Balaenoptera physalus Fin whale North Atlantic University of St Andrews: Research Portal Canada Endangered Species Research 23 2 125 132 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Fin whale Mark-recapture Survival Abundance Modeling |
spellingShingle |
Fin whale Mark-recapture Survival Abundance Modeling Ramp, Christian Delarue, Julien Bérubé, Martine Hammond, Philip Steven Sears, Richard Fin whale survival and abundance in the Gulf of St. Lawrence, Canada |
topic_facet |
Fin whale Mark-recapture Survival Abundance Modeling |
description |
The fin whale Balaenoptera physalus , the second largest species in the animal kingdom to have lived on Earth, was heavily targeted during the industrial whaling era. North Atlantic whaling for this species ended in 1987 and it is unclear if the populations are recovering. The stock structure in the North Atlantic is still under debate, but several lines of evidence suggest that fin whales in the Gulf of St. Lawrence may form a discrete stock with limited exchange with the rest of the North Atlantic. We applied mark-recapture models to 21 yr of photo-identification data from the Jacques-Cartier Passage to estimate the abundance and, for the first time, a survival rate based on live re-sightings for this stock of fin whales. Using the Cormack-Jolly-Seber model, we estimated a unisex non-calf apparent survival rate of 0.955 (95% CI: 0.936 to 0.969) for the period 1990 to 2010, declining in the last 4 yr of the study. The reduced survivorship was likely caused by a lower site fidelity combined with a higher mortality. The POPAN model yielded a super-population estimate of 328 individuals (95% CI: 306 to 350) for the period 2004 to 2010, and confirmed the negative trend in apparent survival and annual abundance, indicating that the population has not increased since the last large-scale surveys from 1974 and 1997. |
format |
Article in Journal/Newspaper |
author |
Ramp, Christian Delarue, Julien Bérubé, Martine Hammond, Philip Steven Sears, Richard |
author_facet |
Ramp, Christian Delarue, Julien Bérubé, Martine Hammond, Philip Steven Sears, Richard |
author_sort |
Ramp, Christian |
title |
Fin whale survival and abundance in the Gulf of St. Lawrence, Canada |
title_short |
Fin whale survival and abundance in the Gulf of St. Lawrence, Canada |
title_full |
Fin whale survival and abundance in the Gulf of St. Lawrence, Canada |
title_fullStr |
Fin whale survival and abundance in the Gulf of St. Lawrence, Canada |
title_full_unstemmed |
Fin whale survival and abundance in the Gulf of St. Lawrence, Canada |
title_sort |
fin whale survival and abundance in the gulf of st. lawrence, canada |
publishDate |
2014 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/fin-whale-survival-and-abundance-in-the-gulf-of-st-lawrence-canada(339f4148-b64d-40a7-bc86-46b58aeacae3).html https://doi.org/10.3354/esr00571 https://research-repository.st-andrews.ac.uk/bitstream/10023/17174/1/Ramp_etal_2014_MEPS_FinWhaleSurvivalAbundance.pdf |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Balaenoptera physalus Fin whale North Atlantic |
genre_facet |
Balaenoptera physalus Fin whale North Atlantic |
op_source |
Ramp , C , Delarue , J , Bérubé , M , Hammond , P S & Sears , R 2014 , ' Fin whale survival and abundance in the Gulf of St. Lawrence, Canada ' , Endangered Species Research , vol. 23 , no. 2 , pp. 125-132 . https://doi.org/10.3354/esr00571 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3354/esr00571 |
container_title |
Endangered Species Research |
container_volume |
23 |
container_issue |
2 |
container_start_page |
125 |
op_container_end_page |
132 |
_version_ |
1766367020012535808 |