Multiple environmental drivers across life-stages influence Yukon River Chinook salmon productivity
Recent declines of Yukon River Chinook salmon (Oncorhynchus tshawytscha) populations have severely impacted people residing in the Yukon and Alaska. Evidence-based conservation strategies focused on stock recovery and adaptation are urgently needed but are limited by our understanding of what is dri...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
2023
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/cjfas-2022-0254 https://cdnsciencepub.com/doi/pdf/10.1139/cjfas-2022-0254 |
id |
crcansciencepubl:10.1139/cjfas-2022-0254 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/cjfas-2022-0254 2023-12-17T10:51:32+01:00 Multiple environmental drivers across life-stages influence Yukon River Chinook salmon productivity Murdoch, Alyssa D. Connors, Brendan M. Lapointe, Nicolas W.R. Mills Flemming, Joanna Cooke, Steven J. Mantyka-Pringle, Chrystal 2023 http://dx.doi.org/10.1139/cjfas-2022-0254 https://cdnsciencepub.com/doi/pdf/10.1139/cjfas-2022-0254 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2023 crcansciencepubl https://doi.org/10.1139/cjfas-2022-0254 2023-11-19T13:39:20Z Recent declines of Yukon River Chinook salmon (Oncorhynchus tshawytscha) populations have severely impacted people residing in the Yukon and Alaska. Evidence-based conservation strategies focused on stock recovery and adaptation are urgently needed but are limited by our understanding of what is driving declines, particularly in Canadian portions of the Yukon River basin. We examined how multiple environmental drivers may be influencing Canadian-origin Yukon River Chinook salmon productivity for eight populations over a 28-year period. We found that productivity was related to various environmental and ecosystem processes acting cumulatively over multiple life stages and across broad geographic scales. Productivity decreased in association with warmer upriver migration temperatures, wetter freshwater juvenile rearing habitats, and increasing abundances of potential marine competitors. In contrast, productivity increased in years with warmer and snowier winters and earlier spring onset. We found that different populations had similar relationships with environmental drivers, with potentially negative implications for regional fisheries stability. Our findings provide insight into how Chinook salmon are responding to rapid environmental change and can help inform salmon conservation initiatives and sustainable harvest strategies. Article in Journal/Newspaper Yukon river Alaska Yukon Canadian Science Publishing (via Crossref) Yukon Canadian Journal of Fisheries and Aquatic Sciences |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Murdoch, Alyssa D. Connors, Brendan M. Lapointe, Nicolas W.R. Mills Flemming, Joanna Cooke, Steven J. Mantyka-Pringle, Chrystal Multiple environmental drivers across life-stages influence Yukon River Chinook salmon productivity |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Recent declines of Yukon River Chinook salmon (Oncorhynchus tshawytscha) populations have severely impacted people residing in the Yukon and Alaska. Evidence-based conservation strategies focused on stock recovery and adaptation are urgently needed but are limited by our understanding of what is driving declines, particularly in Canadian portions of the Yukon River basin. We examined how multiple environmental drivers may be influencing Canadian-origin Yukon River Chinook salmon productivity for eight populations over a 28-year period. We found that productivity was related to various environmental and ecosystem processes acting cumulatively over multiple life stages and across broad geographic scales. Productivity decreased in association with warmer upriver migration temperatures, wetter freshwater juvenile rearing habitats, and increasing abundances of potential marine competitors. In contrast, productivity increased in years with warmer and snowier winters and earlier spring onset. We found that different populations had similar relationships with environmental drivers, with potentially negative implications for regional fisheries stability. Our findings provide insight into how Chinook salmon are responding to rapid environmental change and can help inform salmon conservation initiatives and sustainable harvest strategies. |
format |
Article in Journal/Newspaper |
author |
Murdoch, Alyssa D. Connors, Brendan M. Lapointe, Nicolas W.R. Mills Flemming, Joanna Cooke, Steven J. Mantyka-Pringle, Chrystal |
author_facet |
Murdoch, Alyssa D. Connors, Brendan M. Lapointe, Nicolas W.R. Mills Flemming, Joanna Cooke, Steven J. Mantyka-Pringle, Chrystal |
author_sort |
Murdoch, Alyssa D. |
title |
Multiple environmental drivers across life-stages influence Yukon River Chinook salmon productivity |
title_short |
Multiple environmental drivers across life-stages influence Yukon River Chinook salmon productivity |
title_full |
Multiple environmental drivers across life-stages influence Yukon River Chinook salmon productivity |
title_fullStr |
Multiple environmental drivers across life-stages influence Yukon River Chinook salmon productivity |
title_full_unstemmed |
Multiple environmental drivers across life-stages influence Yukon River Chinook salmon productivity |
title_sort |
multiple environmental drivers across life-stages influence yukon river chinook salmon productivity |
publisher |
Canadian Science Publishing |
publishDate |
2023 |
url |
http://dx.doi.org/10.1139/cjfas-2022-0254 https://cdnsciencepub.com/doi/pdf/10.1139/cjfas-2022-0254 |
geographic |
Yukon |
geographic_facet |
Yukon |
genre |
Yukon river Alaska Yukon |
genre_facet |
Yukon river Alaska Yukon |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjfas-2022-0254 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
_version_ |
1785576816099983360 |