Alaska Science Center

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Shublik Spring open water
April 27, 2019

Shublik Spring open water

Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.

Canning River with bars
April 27, 2019

Canning River with bars

Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.

Michael Carey and Vanessa von Biela on Canning River
April 27, 2019

Michael Carey and Vanessa von Biela on Canning River

Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.

Hole in the ice from an auger
April 27, 2019

Hole in the ice from an auger on Canning River

Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.

April 27, 2019

Under Ice Habitat in Canning River Delta

In the Arctic, rivers are often thought to freeze completely during winter. Since fish need liquid water to survive, there are few places where they can live. Fish usually inhabit deep river channels and areas where springwater enters a stream. However, this video shows that winter habitat occurs in places we didn't expect, below the ice in the delta of a shallow river. 

Canning River with bars view
April 26, 2019

Canning River with bars view

Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.

Vanessa von Biela with cut bank at Canning River
April 25, 2019

Vanessa von Biela with cut bank at Canning River

Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.

Canning River with Brooks Range in the background
April 24, 2019

Canning River with Brooks Range in the background

Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.

Copper River sonar on a bridge
April 24, 2019

Copper River sonar on a bridge

Copper River sonar on a bridge

Knik River bridge aerial view
April 22, 2019

Knik River bridge aerial view

Knik River bridge aerial view

Twentymile River bridge
March 27, 2019

Twentymile River bridge

Twentymile bridge

Evidence of turbidity currents in Eklutna Lake triggered by shaking during the 2018 Mw7.1 Anchorage earthquake
February 16, 2019

Evidence of turbidity currents in Eklutna Lake

USGS scientists, working with researchers from the University of Ghent, probed the floor of Eklutna Lake, Anchorage Borough, Alaska, for evidence of turbidity currents triggered by strong shaking during the 2018 Mw7.1 Anchorage earthquake. In this photo, USGS scientist Peter Haeussler points to a dark layer at the top of a sediment core taken from the floor of Eklutna Lake

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