Alaska Science Center

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Tazlina River bridge
June 28, 2019

Tazlina River bridge

Tazlina River bridge

Kasilof River sonar on a bridge
June 28, 2019

Kasilof River sonar on a bridge

Kasilof River sonar on a bridge

A Common Murre holds a Pacific sand lance near Gull Island, Alaska
June 19, 2019

A Common Murre holds a Pacific sand lance near Gull Island in Alaska

Northern Fulmars, Black-legged Kittiwakes, and Common Murres have all been tested for and contained harmful algal bloom (HAB) toxins. Since 2015, the USGS has worked with a variety of stakeholders to develop testing methods and research projects to better understand the geographic extent, timing and impacts of algal toxins in Alaska marine ecosystems.

Beaver lodge and drained impoundment in tributary of the Noatak River, Noatak National Preserve
June 12, 2019

Beaver lodge and drained impoundment in tributary of the Noatak River

Beaver lodge and drained impoundment in tributary of the Noatak River, Noatak National Preserve

Impounded water above beaver dam on the Wrench Creek, Noatak National Preserve
June 12, 2019

Impounded water above beaver dam on the Wrench Creek

Impounded water above beaver dam on the Wrench Creek, Noatak National Preserve

Beaver dam and lodge on the Ahaliknak Creek, Noatak National Preserve
June 9, 2019

Beaver dam and lodge on the Ahaliknak Creek, Noatak National Preserve

Beaver dam and lodge on the Ahaliknak Creek, Noatak National Preserve

Chilkat River bridge
May 30, 2019

Chilkat River bridge

Chilkat River bridge

Chilkat River sonar on a bridge
May 30, 2019

Chilkat River sonar on a bridge

Chilkat River sonar on a bridge

Kashwitna River bridge debris
May 13, 2019

Kashwitna River bridge debris

Kashwitna River bridge debris

Kashwitna River bridge
May 7, 2019

Kashwitna River bridge

Kashwitna River bridge

Lowering minnow trap to fish
April 27, 2019

Lowering minnow trap to fish

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

Minnow trap in icehole
April 27, 2019

Minnow trap in icehole

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