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 |
---|---|
Main Authors: | , , , , |
Other Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2019
|
Subjects: | |
Online Access: | http://hdl.handle.net/10023/17174 https://doi.org/10.3354/esr00571 |
id |
ftstandrewserep:oai:research-repository.st-andrews.ac.uk:10023/17174 |
---|---|
record_format |
openpolar |
spelling |
ftstandrewserep:oai:research-repository.st-andrews.ac.uk:10023/17174 2023-07-02T03:31:46+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 University of St Andrews. School of Biology University of St Andrews. Sea Mammal Research Unit University of St Andrews. Marine Alliance for Science & Technology Scotland University of St Andrews. Scottish Oceans Institute University of St Andrews. Centre for Research into Ecological & Environmental Modelling 2019-03-01 application/pdf http://hdl.handle.net/10023/17174 https://doi.org/10.3354/esr00571 eng eng Endangered Species Research 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 1863-5407 PURE: 104321225 PURE UUID: 339f4148-b64d-40a7-bc86-46b58aeacae3 Scopus: 84987653525 ORCID: /0000-0002-2381-8302/work/47531604 http://hdl.handle.net/10023/17174 https://doi.org/10.3354/esr00571 © Inter-Research 2014. Reproduced in accordance with the publisher's self-archiving policies. Originally published by Inter-Research here: http://dx.doi.org/10.3354/esr00571 Fin whale Mark-recapture Survival Abundance Modeling QL Zoology GC Oceanography QL GC Journal article 2019 ftstandrewserep https://doi.org/10.3354/esr00571 2023-06-13T18:29:49Z 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. Publisher PDF Peer reviewed Article in Journal/Newspaper Balaenoptera physalus Fin whale North Atlantic University of St Andrews: Digital Research Repository Canada Endangered Species Research 23 2 125 132 |
institution |
Open Polar |
collection |
University of St Andrews: Digital Research Repository |
op_collection_id |
ftstandrewserep |
language |
English |
topic |
Fin whale Mark-recapture Survival Abundance Modeling QL Zoology GC Oceanography QL GC |
spellingShingle |
Fin whale Mark-recapture Survival Abundance Modeling QL Zoology GC Oceanography QL GC 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 QL Zoology GC Oceanography QL GC |
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. Publisher PDF Peer reviewed |
author2 |
University of St Andrews. School of Biology University of St Andrews. Sea Mammal Research Unit University of St Andrews. Marine Alliance for Science & Technology Scotland University of St Andrews. Scottish Oceans Institute University of St Andrews. Centre for Research into Ecological & Environmental Modelling |
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 |
2019 |
url |
http://hdl.handle.net/10023/17174 https://doi.org/10.3354/esr00571 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Balaenoptera physalus Fin whale North Atlantic |
genre_facet |
Balaenoptera physalus Fin whale North Atlantic |
op_relation |
Endangered Species Research 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 1863-5407 PURE: 104321225 PURE UUID: 339f4148-b64d-40a7-bc86-46b58aeacae3 Scopus: 84987653525 ORCID: /0000-0002-2381-8302/work/47531604 http://hdl.handle.net/10023/17174 https://doi.org/10.3354/esr00571 |
op_rights |
© Inter-Research 2014. Reproduced in accordance with the publisher's self-archiving policies. Originally published by Inter-Research here: http://dx.doi.org/10.3354/esr00571 |
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_ |
1770271167864635392 |