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Fish

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Condition of Forage Fish in Prince William Sound During the Marine Heatwave

Changes in the body condition of a key forage fish species, Pacific sand lance (Ammodytes personatus), are examined to understand how energy transfer to predators may have been disrupted during the recent marine heatwave in the North Pacific (late 2013 to mid 2016).
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Condition of Forage Fish in Prince William Sound During the Marine Heatwave

Changes in the body condition of a key forage fish species, Pacific sand lance (Ammodytes personatus), are examined to understand how energy transfer to predators may have been disrupted during the recent marine heatwave in the North Pacific (late 2013 to mid 2016).
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Winter Habitat of Juvenile Dolly Varden in the Canning River

In the Arctic, rivers often freeze all the way to the bottom each winter leaving fish with limited habitat where they can survive.
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Winter Habitat of Juvenile Dolly Varden in the Canning River

In the Arctic, rivers often freeze all the way to the bottom each winter leaving fish with limited habitat where they can survive.
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Detecting Long-term Changes in Forage Fish Populations in Prince William Sound, Alaska

Forage fish are small pelagic schooling fish that play a key role in transferring energy between plankton and top marine predators. Many seabirds, marine mammals, and commercial fish species depend on forage fish to grow and survive.
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Detecting Long-term Changes in Forage Fish Populations in Prince William Sound, Alaska

Forage fish are small pelagic schooling fish that play a key role in transferring energy between plankton and top marine predators. Many seabirds, marine mammals, and commercial fish species depend on forage fish to grow and survive.
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Terrestrial Influence on Glacial-Marine Food Webs

Where glaciers meet the sea in the Gulf of Alaska (GOA), they create unique and productive marine habitats. Ringed by the continent’s tallest coastal mountains, 20% of the GOA coastal watershed is covered by glacial ice and the annual freshwater discharge into the GOA from glacial melt is comparable to that of the Mississippi river.
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Terrestrial Influence on Glacial-Marine Food Webs

Where glaciers meet the sea in the Gulf of Alaska (GOA), they create unique and productive marine habitats. Ringed by the continent’s tallest coastal mountains, 20% of the GOA coastal watershed is covered by glacial ice and the annual freshwater discharge into the GOA from glacial melt is comparable to that of the Mississippi river.
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Ecosystem Shifts in Arctic Seas

In addition to the direct effects of sea ice loss on walrus (Odobenus rosmarus divergens) and polar bears (Ursus maritimus) that use ice as a platform, the decline of Arctic sea ice is predicted to promote a fundamental ecosystem shift from benthic animals that forage on the sea floor to pelagic animals that forage near the sea surface.
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Ecosystem Shifts in Arctic Seas

In addition to the direct effects of sea ice loss on walrus (Odobenus rosmarus divergens) and polar bears (Ursus maritimus) that use ice as a platform, the decline of Arctic sea ice is predicted to promote a fundamental ecosystem shift from benthic animals that forage on the sea floor to pelagic animals that forage near the sea surface.
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Lake Trout Biochronologies as Long-term Climate and Productivity Indicators in Alaska Lake Ecosystems

High latitude ecosystems are among the most vulnerable to long-term climate change, yet continuous, multidecadal indicators by which to gauge effects on biology are scarce, especially in freshwater environments.
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Lake Trout Biochronologies as Long-term Climate and Productivity Indicators in Alaska Lake Ecosystems

High latitude ecosystems are among the most vulnerable to long-term climate change, yet continuous, multidecadal indicators by which to gauge effects on biology are scarce, especially in freshwater environments.
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Primary Production Sources and Bottom-up Limitations in Nearshore Ecosystems

Kelp forests are among the world’s most productive habitats, but recent evidence suggests that production is highly variable.
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Primary Production Sources and Bottom-up Limitations in Nearshore Ecosystems

Kelp forests are among the world’s most productive habitats, but recent evidence suggests that production is highly variable.
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Hydro-Ecology of Arctic Thawing (HEAT): Ecology

Permafrost thaw is leading to a myriad of changes in physical and chemical conditions throughout the Arctic.
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Hydro-Ecology of Arctic Thawing (HEAT): Ecology

Permafrost thaw is leading to a myriad of changes in physical and chemical conditions throughout the Arctic.
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Effect of Elodea spp. on Fish Performance Mediated Through Food Web Interactions

The potential for invasive species introductions in Arctic and Subarctic ecosystems is growing as climate change manifests and human activity increases in high latitudes.
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Effect of Elodea spp. on Fish Performance Mediated Through Food Web Interactions

The potential for invasive species introductions in Arctic and Subarctic ecosystems is growing as climate change manifests and human activity increases in high latitudes.
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Sockeye Salmon Migrating at the Northern Edge of Their Distribution

The physiological challenge for anadromous fish to migrate upriver to spawn and complete their life cycle is influenced by river temperature.
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Sockeye Salmon Migrating at the Northern Edge of Their Distribution

The physiological challenge for anadromous fish to migrate upriver to spawn and complete their life cycle is influenced by river temperature.
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Nearshore Fish Surveys in the Beaufort Sea

Nearshore systems provide habitat to a unique community of marine and diadromous (lives in both fresh and saltwater) fish and support high fish abundance.
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Nearshore Fish Surveys in the Beaufort Sea

Nearshore systems provide habitat to a unique community of marine and diadromous (lives in both fresh and saltwater) fish and support high fish abundance.
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Assessing heat stress in migrating Yukon River Chinook Salmon

We will examine evidence of heat stress in Yukon River Chinook salmon (Oncorhynchus tshawytscha) using heat shock proteins and gene expression.
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Assessing heat stress in migrating Yukon River Chinook Salmon

We will examine evidence of heat stress in Yukon River Chinook salmon (Oncorhynchus tshawytscha) using heat shock proteins and gene expression.
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