Premature Mortality Observations among Alaska’s Pacific Salmon During Record Heat and Drought in 2019
Widespread mortality of Pacific salmon Oncorhynchus spp. returning to spawn in Alaska coincided with record‐breaking air temperatures and prolonged drought in summer 2019. Extreme environmental conditions are expected to happen more frequently with rapid climate change and challenge the notion that...
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crwiley:10.1002/fsh.10705 2024-10-06T13:48:51+00:00 Premature Mortality Observations among Alaska’s Pacific Salmon During Record Heat and Drought in 2019 von Biela, Vanessa R. Sergeant, Christopher J. Carey, Michael P. Liller, Zachary Russell, Charles Quinn‐Davidson, Stephanie Rand, Peter S. Westley, Peter A.H. Zimmerman, Christian E. 2022 http://dx.doi.org/10.1002/fsh.10705 https://onlinelibrary.wiley.com/doi/pdf/10.1002/fsh.10705 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/fsh.10705 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1002/fsh.10705 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Fisheries volume 47, issue 4, page 157-168 ISSN 0363-2415 1548-8446 journal-article 2022 crwiley https://doi.org/10.1002/fsh.10705 2024-09-11T04:17:56Z Widespread mortality of Pacific salmon Oncorhynchus spp. returning to spawn in Alaska coincided with record‐breaking air temperatures and prolonged drought in summer 2019. Extreme environmental conditions are expected to happen more frequently with rapid climate change and challenge the notion that Alaska could indefinitely provide abundant, cool freshwater habitat for Pacific salmon. A total of 110 geographically widespread opportunistic observations of premature mortality (carcasses) were collected from a variety of sources. Premature mortalities were documented for Pink Salmon Oncorhynchus gorbuscha , Sockeye Salmon O. nerka , Chum Salmon O. keta , Chinook Salmon O. tshawytscha , and Coho Salmon O. kisutch . Additionally, observations of Pink Salmon returning to spawn in Prince William Sound streams in 2019, obtained from systematic aerial surveys conducted annually, revealed low migration success in 87% of rain‐driven streams ( n = 30), 52% of snow‐driven streams ( n = 65), and only 18% of glacier‐driven streams ( n = 11). Salmon mortality observations were consistent with death due to heat stress resulting from high water temperatures or drought caused hypoxia and stranding. Developing a better understanding of how broad‐scale climate patterns manifest at the stream scale can help us determine whether a major shift in Pacific salmon productivity is underway and inform fisheries management plans to better mitigate future risks. Article in Journal/Newspaper glacier Oncorhynchus gorbuscha Pink salmon Alaska Wiley Online Library Keta ENVELOPE(-19.455,-19.455,65.656,65.656) Pacific Sockeye ENVELOPE(-130.143,-130.143,54.160,54.160) Fisheries 47 4 157 168 |
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Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Widespread mortality of Pacific salmon Oncorhynchus spp. returning to spawn in Alaska coincided with record‐breaking air temperatures and prolonged drought in summer 2019. Extreme environmental conditions are expected to happen more frequently with rapid climate change and challenge the notion that Alaska could indefinitely provide abundant, cool freshwater habitat for Pacific salmon. A total of 110 geographically widespread opportunistic observations of premature mortality (carcasses) were collected from a variety of sources. Premature mortalities were documented for Pink Salmon Oncorhynchus gorbuscha , Sockeye Salmon O. nerka , Chum Salmon O. keta , Chinook Salmon O. tshawytscha , and Coho Salmon O. kisutch . Additionally, observations of Pink Salmon returning to spawn in Prince William Sound streams in 2019, obtained from systematic aerial surveys conducted annually, revealed low migration success in 87% of rain‐driven streams ( n = 30), 52% of snow‐driven streams ( n = 65), and only 18% of glacier‐driven streams ( n = 11). Salmon mortality observations were consistent with death due to heat stress resulting from high water temperatures or drought caused hypoxia and stranding. Developing a better understanding of how broad‐scale climate patterns manifest at the stream scale can help us determine whether a major shift in Pacific salmon productivity is underway and inform fisheries management plans to better mitigate future risks. |
format |
Article in Journal/Newspaper |
author |
von Biela, Vanessa R. Sergeant, Christopher J. Carey, Michael P. Liller, Zachary Russell, Charles Quinn‐Davidson, Stephanie Rand, Peter S. Westley, Peter A.H. Zimmerman, Christian E. |
spellingShingle |
von Biela, Vanessa R. Sergeant, Christopher J. Carey, Michael P. Liller, Zachary Russell, Charles Quinn‐Davidson, Stephanie Rand, Peter S. Westley, Peter A.H. Zimmerman, Christian E. Premature Mortality Observations among Alaska’s Pacific Salmon During Record Heat and Drought in 2019 |
author_facet |
von Biela, Vanessa R. Sergeant, Christopher J. Carey, Michael P. Liller, Zachary Russell, Charles Quinn‐Davidson, Stephanie Rand, Peter S. Westley, Peter A.H. Zimmerman, Christian E. |
author_sort |
von Biela, Vanessa R. |
title |
Premature Mortality Observations among Alaska’s Pacific Salmon During Record Heat and Drought in 2019 |
title_short |
Premature Mortality Observations among Alaska’s Pacific Salmon During Record Heat and Drought in 2019 |
title_full |
Premature Mortality Observations among Alaska’s Pacific Salmon During Record Heat and Drought in 2019 |
title_fullStr |
Premature Mortality Observations among Alaska’s Pacific Salmon During Record Heat and Drought in 2019 |
title_full_unstemmed |
Premature Mortality Observations among Alaska’s Pacific Salmon During Record Heat and Drought in 2019 |
title_sort |
premature mortality observations among alaska’s pacific salmon during record heat and drought in 2019 |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1002/fsh.10705 https://onlinelibrary.wiley.com/doi/pdf/10.1002/fsh.10705 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/fsh.10705 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1002/fsh.10705 |
long_lat |
ENVELOPE(-19.455,-19.455,65.656,65.656) ENVELOPE(-130.143,-130.143,54.160,54.160) |
geographic |
Keta Pacific Sockeye |
geographic_facet |
Keta Pacific Sockeye |
genre |
glacier Oncorhynchus gorbuscha Pink salmon Alaska |
genre_facet |
glacier Oncorhynchus gorbuscha Pink salmon Alaska |
op_source |
Fisheries volume 47, issue 4, page 157-168 ISSN 0363-2415 1548-8446 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/fsh.10705 |
container_title |
Fisheries |
container_volume |
47 |
container_issue |
4 |
container_start_page |
157 |
op_container_end_page |
168 |
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1812176933597741056 |