Map showing the premature mortality observations of Pacific salmon carcasses in Alaska
By Alaska Science Center
2022 (approx.)
Detailed Description
Map showing the premature mortality observations of Pacific salmon carcasses in Alaska during summer and fall of 2019. Symbol color and shape denote Pacific Salmon species or alternative taxonomic groupings specified in the legend. Figure from the article "Premature Mortality Observations among Alaska’s Pacific Salmon During Record Heat and Drought in 2019".
Sources/Usage
Public Domain.
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Related
Heat stress in Alaska's Pacific salmon
Alaska's freshwater spans a wide range of summer water temperatures, from ice-cold glacier water to warm rivers that routinely reach stressful levels for salmon, exceeding 18°C/64°F and even surpassing 21°C/70°F. Pacific salmon population trends are also varied and include declines in many Chinook salmon populations. Salmon declines are kitchen table issues because salmon fishing is key to the...
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Fish and aquatic habitats in Alaska support important commercial, sport, and subsistence fisheries and provide forage fish that support wildlife populations. The USGS Alaska Science Center conducts interdisciplinary research to inform local, state, federal, and international policy makers regarding conservation of fish, aquatic species, and their habitats. We work collaboratively with hydrologists...