Egg retention of high-latitude sockeye salmon (Oncorhynchus nerka) in the Pilgrim River, Alaska, during the Pacific marine heatwave of 2014–2016

Carey, Michael P.; Biela, Vanessa R. von; Dunker, Ashley; Keith, Kevin; Schelske, Merlyn; Lean, Charlie; Zimmerman, Christian E.

doi:10.1007/s00300-021-02902-8

Cited by 11 publications

(7 citation statements)

References 60 publications

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“…Fourth, there is evidence that an increasing number of Pacific salmon will encounter challenging environmental conditions in marine as well as freshwater habitats as climate warming proceeds. Marine conditions are known to influence Pacific salmon production with warmer oceans previously linked to higher production in Alaska (Mueter et al 2002), but more recent evidence hinting that extremely warm ocean conditions are problematic (Carey et al 2021). More frequent extreme warm ocean conditions are anticipated (e.g., Pacific marine heatwaves in -2016Amaya et al 2020).…”

Section: Synthesismentioning

confidence: 99%

Premature Mortality Observations among Alaska’s Pacific Salmon During Record Heat and Drought in 2019

et al. 2022

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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.

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Section: Synthesismentioning

confidence: 99%

Premature Mortality Observations among Alaska’s Pacific Salmon During Record Heat and Drought in 2019

et al. 2022

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“…The 2014-2016 marine heatwave in the Gulf of Alaska and Bering Sea was associated with ecosystem responses that persisted for multiple years (Suryan et al 2021 ). These ecological responses included reductions in diet mass and lower piscivory during the early marine feeding period for Chinook Salmon (Garcia and Sewall 2021 ), changes in energy density of juvenile Chinook Salmon (Garcia and Sewall 2021 ), and egg retention in a Sockeye Salmon O. nerka population in the AYK region (Carey et al 2021 ). Even among studies that do not span the marine heatwave years, juvenile Chinook Salmon appear to face summers that are too warm in the marine environment where summer growth was faster in cooler years (1974( data in Yasumiishi et al 2020b.…”

Section: Perisisting Questionsmentioning

confidence: 99%

Fisheries Volume 48 Number 8 August 2023

2023

Fisheries

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Wiley's Corporate Citizenship initiative seeks to address the environmental, social, economic, and ethical challenges faced in our business and which are important to our diverse stakeholder groups. Since launching the initiative, we have focused on sharing our content with those in need, enhancing community philanthropy, reducing our carbon impact, creating global guidelines and best practices for paper use, establishing a vendor code of ethics, and engaging our colleagues and other stakeholders in our efforts.

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“…The 2014–2016 marine heatwave in the Gulf of Alaska and Bering Sea was associated with ecosystem responses that persisted for multiple years (Suryan et al 2021). These ecological responses included reductions in diet mass and lower piscivory during the early marine feeding period for Chinook Salmon (Garcia and Sewall 2021), changes in energy density of juvenile Chinook Salmon (Garcia and Sewall 2021), and egg retention in a Sockeye Salmon O. nerka population in the AYK region (Carey et al 2021). Even among studies that do not span the marine heatwave years, juvenile Chinook Salmon appear to face summers that are too warm in the marine environment where summer growth was faster in cooler years (1974–2010 data in Yasumiishi et al 2020b).…”

Section: Climate–chinook Salmon Interactions In the Ayk Regionmentioning

confidence: 99%

Kings of the North: Bridging Disciplines to Understand the Effects of Changing Climate on Chinook Salmon in the Arctic–Yukon–Kuskokwim Region

et al. 2023

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Understanding how species are responding to environmental change is a central challenge for stewards and managers of fish and wildlife who seek to maintain harvest opportunities for communities and Indigenous peoples. This is a particularly daunting but increasingly important task in remote, high‐latitude regions where environmental conditions are changing rapidly and data collection is logistically difficult. The Arctic–Yukon–Kuskokwim (AYK) region encompasses the northern extent of the Chinook Salmon Oncorhynchus tshawytscha range where populations are experiencing rapid rates of environmental change across both freshwater and marine habitats due to global climate change. Climate–salmon interactions in the AYK region are a particularly pressing issue as many local communities have a deep reliance on a subsistence way of life. Here, we synthesize perspectives shared at a recent workshop on Chinook Salmon declines in the AYK region. The objectives were to discuss current understandings of climate–Chinook Salmon interactions, develop a set of outstanding questions, review available data and its limitations in addressing these questions, and describe the perspectives expressed by participants in this workshop from diverse backgrounds. We conclude by suggesting pathways forward to integrate different types of information and build relationships among communities, academic partners, and fishery management agencies.

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Egg retention of high-latitude sockeye salmon (Oncorhynchus nerka) in the Pilgrim River, Alaska, during the Pacific marine heatwave of 2014–2016

Cited by 11 publications

References 60 publications

Premature Mortality Observations among Alaska’s Pacific Salmon During Record Heat and Drought in 2019

Premature Mortality Observations among Alaska’s Pacific Salmon During Record Heat and Drought in 2019

Fisheries Volume 48 Number 8 August 2023

Kings of the North: Bridging Disciplines to Understand the Effects of Changing Climate on Chinook Salmon in the Arctic–Yukon–Kuskokwim Region

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