Ecosystems

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Image: USGS Researcher Monitoring Endangered Pupfish

USGS Researcher Monitoring Endangered Pupfish

USGS Cooperative Research Unit graduate student Ambre Chaudoin monitors dissolved oxygen levels, pH, and temperature in endangered Devils Hole pupfish spawning habitat in Devils Hole.

Attribution: Ecosystems
Image: Invasive Lionfish Removal

Invasive Lionfish Removal

The invasive red lionfish (Pterois volitans) waits to be hauled to the surface, where it will eventually be used by NOAA to conduct lab studies on lionfish reproductive biology, age, and growth.

Attribution: Ecosystems
Image: Dr. Sasha Reed

Dr. Sasha Reed

Dr. Sasha Reed is a research ecologist with the USGS who was honored with a 2011 PECASE award.

Attribution: Ecosystems
Boat moving fast on the water

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.

Attribution: Ecosystems
Image: Rockfishes Inhabit Oil Platforms

Rockfishes Inhabit Oil Platforms

Rockfishes inhabit oil platforms offshore of California.

 

Attribution: Ecosystems
Image: Kept Kelp Cool

Kept Kelp Cool

USGS Alaska Science Center biologist George Esslinger seeks relief from the hot California sun and his smothering drysuit, as he and his crew catch a rare break during a day of capturing and tagging wild sea otters.

Attribution: Ecosystems
Image: Miradiscops panamensis

Miradiscops panamensis

Miradiscops panamensis shell viewed with a scanning electron microscope with aperture facing up.

Attribution: Ecosystems
Image: Why We Do What We Do!!!

Why We Do What We Do!!!

Schools out !. Bus passing by largest Burr Oak in Missouri.

Attribution: Ecosystems
Image: Northern Pintail Ducks

Northern Pintail Ducks

A flock of wintering northern pintail ducks in Northern Honshu, Japan.

Attribution: Ecosystems
Image: Wildlife at Summer Lake Wildlife Area

Wildlife at Summer Lake Wildlife Area

A pair of pelicans and in the background a Great Blue Heron in a Wetland at Summerlake Wildlife Area.

Attribution: Ecosystems