Annual survival probabilities of anadromous arctic char remain high and stable despite interannual differences in sea ice melt date
Throughout their range, anadromous Arctic Char (Salvelinus alpinus (Linnaeus, 1758)) support commercial, recreational, and subsistence fisheries that are important economically, socially, and culturally. However, drivers of interannual variation in survival in this species remain poorly understood....
Published in: | Arctic Science |
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Online Access: | https://scholar.uwindsor.ca/glierpub/274 https://doi.org/10.1139/as-2020-0029 |
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ftunivwindsor:oai:scholar.uwindsor.ca:glierpub-1276 2023-06-11T04:08:05+02:00 Annual survival probabilities of anadromous arctic char remain high and stable despite interannual differences in sea ice melt date Caza-Allard, Isabeau Mazerolle, Marc J. Harris, Les N. Malley, Brendan K. Tallman, Ross F. Fisk, Aaron T. Moore, Jean Sébastien 2021-01-01T08:00:00Z https://scholar.uwindsor.ca/glierpub/274 https://doi.org/10.1139/as-2020-0029 unknown Scholarship at UWindsor https://scholar.uwindsor.ca/glierpub/274 doi:10.1139/as-2020-0029 https://doi.org/10.1139/as-2020-0029 Great Lakes Institute for Environmental Research Publications Acoustic telemetry Arctic Char Capture–mark–recapture Fisheries management Salvelinus alpinus text 2021 ftunivwindsor https://doi.org/10.1139/as-2020-0029 2023-05-06T19:10:44Z Throughout their range, anadromous Arctic Char (Salvelinus alpinus (Linnaeus, 1758)) support commercial, recreational, and subsistence fisheries that are important economically, socially, and culturally. However, drivers of interannual variation in survival in this species remain poorly understood. Here, we aimed to quantify the impact of environmental and biological parameters on the survival probability of anadromous Arctic Char near the community of Cambridge Bay, Nunavut, Canada. To do so, we tracked 183 Arctic Char tagged with acoustic transmitters and used capture–mark–recapture methods to estimate survival probabilities over six years. Annual survival probabilities for individuals was high, varying between 0.79 and 0.88, whereas recapture probabilities varied between 0.64 and 0.90. Interannual variation in survival probability was low and neither the environmental (air temperature and sea ice cover) nor biological (sex) variables influenced survival probability. These estimates suggest that annual survival probability is high for anadromous adult Arctic Char in the Cambridge Bay area, despite clear differences in the ice cover melt date among years. These results further our understanding of the demographic parameters of Arctic Char in the region, which will be important for future assessments of the sustainability of commercial fisheries as well as for predicting population responses to a rapidly changing Arctic. Text Arctic Cambridge Bay Nunavut Salvelinus alpinus Sea ice University of Windsor, Ontario: Scholarship at UWindsor Arctic Nunavut Canada Cambridge Bay ENVELOPE(-105.130,-105.130,69.037,69.037) Arctic Science 7 2 575 584 |
institution |
Open Polar |
collection |
University of Windsor, Ontario: Scholarship at UWindsor |
op_collection_id |
ftunivwindsor |
language |
unknown |
topic |
Acoustic telemetry Arctic Char Capture–mark–recapture Fisheries management Salvelinus alpinus |
spellingShingle |
Acoustic telemetry Arctic Char Capture–mark–recapture Fisheries management Salvelinus alpinus Caza-Allard, Isabeau Mazerolle, Marc J. Harris, Les N. Malley, Brendan K. Tallman, Ross F. Fisk, Aaron T. Moore, Jean Sébastien Annual survival probabilities of anadromous arctic char remain high and stable despite interannual differences in sea ice melt date |
topic_facet |
Acoustic telemetry Arctic Char Capture–mark–recapture Fisheries management Salvelinus alpinus |
description |
Throughout their range, anadromous Arctic Char (Salvelinus alpinus (Linnaeus, 1758)) support commercial, recreational, and subsistence fisheries that are important economically, socially, and culturally. However, drivers of interannual variation in survival in this species remain poorly understood. Here, we aimed to quantify the impact of environmental and biological parameters on the survival probability of anadromous Arctic Char near the community of Cambridge Bay, Nunavut, Canada. To do so, we tracked 183 Arctic Char tagged with acoustic transmitters and used capture–mark–recapture methods to estimate survival probabilities over six years. Annual survival probabilities for individuals was high, varying between 0.79 and 0.88, whereas recapture probabilities varied between 0.64 and 0.90. Interannual variation in survival probability was low and neither the environmental (air temperature and sea ice cover) nor biological (sex) variables influenced survival probability. These estimates suggest that annual survival probability is high for anadromous adult Arctic Char in the Cambridge Bay area, despite clear differences in the ice cover melt date among years. These results further our understanding of the demographic parameters of Arctic Char in the region, which will be important for future assessments of the sustainability of commercial fisheries as well as for predicting population responses to a rapidly changing Arctic. |
format |
Text |
author |
Caza-Allard, Isabeau Mazerolle, Marc J. Harris, Les N. Malley, Brendan K. Tallman, Ross F. Fisk, Aaron T. Moore, Jean Sébastien |
author_facet |
Caza-Allard, Isabeau Mazerolle, Marc J. Harris, Les N. Malley, Brendan K. Tallman, Ross F. Fisk, Aaron T. Moore, Jean Sébastien |
author_sort |
Caza-Allard, Isabeau |
title |
Annual survival probabilities of anadromous arctic char remain high and stable despite interannual differences in sea ice melt date |
title_short |
Annual survival probabilities of anadromous arctic char remain high and stable despite interannual differences in sea ice melt date |
title_full |
Annual survival probabilities of anadromous arctic char remain high and stable despite interannual differences in sea ice melt date |
title_fullStr |
Annual survival probabilities of anadromous arctic char remain high and stable despite interannual differences in sea ice melt date |
title_full_unstemmed |
Annual survival probabilities of anadromous arctic char remain high and stable despite interannual differences in sea ice melt date |
title_sort |
annual survival probabilities of anadromous arctic char remain high and stable despite interannual differences in sea ice melt date |
publisher |
Scholarship at UWindsor |
publishDate |
2021 |
url |
https://scholar.uwindsor.ca/glierpub/274 https://doi.org/10.1139/as-2020-0029 |
long_lat |
ENVELOPE(-105.130,-105.130,69.037,69.037) |
geographic |
Arctic Nunavut Canada Cambridge Bay |
geographic_facet |
Arctic Nunavut Canada Cambridge Bay |
genre |
Arctic Cambridge Bay Nunavut Salvelinus alpinus Sea ice |
genre_facet |
Arctic Cambridge Bay Nunavut Salvelinus alpinus Sea ice |
op_source |
Great Lakes Institute for Environmental Research Publications |
op_relation |
https://scholar.uwindsor.ca/glierpub/274 doi:10.1139/as-2020-0029 https://doi.org/10.1139/as-2020-0029 |
op_doi |
https://doi.org/10.1139/as-2020-0029 |
container_title |
Arctic Science |
container_volume |
7 |
container_issue |
2 |
container_start_page |
575 |
op_container_end_page |
584 |
_version_ |
1768381215388205056 |