USGS Multimedia Gallery
Ecosystems
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As thumbs: <iframe id="photothumbs" name="photothumbs" height="420" width="600" frameborder="0" scrolling="auto" title="Ecosystems" src="http://gallery.usgs.gov/photo_shares/thumbs/tags/Ecosystems/">[This content is contained within an inline frame. You can also <a href="http://gallery.usgs.gov/photo_shares/thumbs/tags/Ecosystems/">access it directly</a>.]</iframe> As a list:<iframe id="photolist" name="photolist" height="420" width="600" frameborder="0" scrolling="auto" title="Ecosystems" src="http://gallery.usgs.gov/photo_shares/list/tags/Ecosystems/">[This content is contained within an inline frame. You can also <a href="http://gallery.usgs.gov/photo_shares/list/tags/Ecosystems/">access it directly</a>.]</iframe>
Foggy Morning on the Sacramento River
This picture was taken at our juvenile Chinook tagging shed (old town Sacramento) looking upstream at our release location for our study.... 
Sunset on the River
Looking out over the Georgiana Slough near our floating houseboat used for fish tagging....
Back into the River
After tagging this fish, it was released back into the river....
Snake River Cliff
Returning via jet boat from a juvenile salmon fish release after a warm rain. ...
Surviving in the Arctic
This image is of two polar bears cuddled together on a piece of Arctic sea ice, surrounded by ocean water and thin layers of sea ice. This image allows for a deeper understanding of the endangered species and highlights the need for USGS research to help in their protection. ...
Accessing Fish Release Site on North Fork of Toutle River
Accessing a release site for salmonids implanted with radio transmitters. Behavior and movement of salmon are monitored as they migrate through the Toutle River....
Establishing Fish Release Site on North Fork of Toutle River
Establishing a release site for salmonids implanted with radio transmitters. Behavior and movement of salmon are monitored as they migrate through the Toutle River....
Mobile Tracking in The Dalles on the Columbia River
Tracking/monitoring movement of juvenile salmonids implanted with radio transmitters as they migrate down the Columbia River to the ocean....
Plankton Tow Analysis in Puget Sound
Collecting samples (sediment, aquatic vegetation, benthic invertebrates, zooplankton, forage fish, and predatory fish) to evaluate δ 15N ratios in the food web within Liberty Bay to evaluate urbanization effects on the nearshore ecosystem. (Coastal Habitats in Puget Sound program)....
Prize Staghorn Sculpin of Puget Sound
Collecting samples (sediment, aquatic vegetation, benthic invertebrates, zooplankton, forage fish, and predatory fish) to evaluate δ 15N ratios in the food web within Liberty Bay to evaluate urbanization effects on the nearshore ecosystem. (Coastal Habitats in Puget Sound program)....
Plankton Tow Analysis in Puget Sound
Collecting sediment to look for evidence of forage fish (sand lance and/or surf smelt) spawning (eggs) in Liberty Bay - Puget Sound....
Moraine Lake
Picture of Moraine Lake taken from the south face of South Sister in the Three Sisters Wilderness Area. ...
Mt. Hood
Picture taken while climbing Mt. Hood, Oregon, at sunset looking east. ...
Rouge River National Forest
This picture is taken while climbing Mt. McLoughlin looking east over the Rouge River National Forest and Klamath Lake in Southern Oregon....
Cascade Volcanoes
The volcanoes from closest to farthest are Mt. Washington, Three Fingered Jack, Mt. Jefferson. This picture is taken from Middle Sister looking north in the Cascade Range, Three Sisters Wilderness Area, Deschutes National Forest, Oregon....
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U.S. Geological Survey
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Page Last Modified: Wednesday, January 09, 2013
