Images

The eft stage of a red-spotted newt in Walker County, Georgia (Crockford-Pigeon Mountain Wildlife Management Area)

The eft stage of a red-spotted newt in Walker County, Georgia (Crockford-Pigeon Mountain Wildlife Management Area)

Tamarac National Wildlife Refuge, Hyla versicolor - Gray Treefrog, ARMI photo by Mark Roth. UMESC

Rob Spencer, UCDavis Professor and USGS Volunteer collecting a water quality sample with a custom-made "pole sampler" during ice out.

This photograph is of the Puget Sound seafloor and shows a gravel area with numerous scallops, a sea star, several small anemones and colonial hydroids.This image was collected as part of USGS efforts to help with rockfish recovery in the Puget Sound. Scientists are mapping their ecosystem and habitat to understand population distribution

This photograph is of the Puget Sound seafloor and shows a sandy area with partial hydroid and algae cover occupied by two sea pens. This image was collected as part of USGS efforts to help with rockfish recovery in the Puget Sound. Scientists are mapping their ecosystem and habitat to understand population distribution

This photograph is of the Puget Sound seafloor and shows an area mixed with mud, gravel and cobble that is occupied by bivalve molluscs with exposed siphons, a sea star and metridium. This image was collected as part of USGS efforts to help with rockfish recovery in the Puget Sound.

Outflow from East Branch Short Creek Reservoir near Columbus, North Dakota.

Lava from the Pu'u 'Ō'ō-Kupaianaha eruption, active since 1983, enters the ocean on the south flank of Kīlauea Volcano.

This photograph is of the Puget Sound seafloor and shows a sandy area with partial hydroid and algae cover occupied by sea stars and small filter feeding worms. This image was collected as part of USGS efforts to help with rockfish recovery in the Puget Sound. Scientists are mapping their ecosystem and habitat to understand population distribution

Insect-eating Brazilian Free-Tailed bats (Tadarida brasiliensis) provide a great pest-control service to agriculture and natural ecosystems.

Red knots forage for horseshoe crab eggs and other invertebrates on the beaches of Delaware Bay. The bird in the center has an orange leg flag indicating it was captured and flagged in the past in Argentina.

Spawning horseshoe crabs at twilight in the Delaware Bay.

The morning after a full moon high tide spawn, thousands of horseshoe crabs wait on the mud flats for the high tide to return.

Red knots forage for horseshoe crab eggs and other invertebrates on the beaches of Delaware Bay.  The bird on the left has a white leg flag marked with an "EX." It was initially capture in Canada in the fall of 2008.

Acipenseriformes free embryo (pallid sturgeon, shovelnose sturgeon, or paddlefish) collected from the Missouri River.  

USGS scientist retrieves the sampling net from the Missouri River.

Releases from Jamestown Reservoir during 2009 flooding James River near Jamestown, North Dakota.

USGS scientist records data from the flowmeter measuring the volume of water sampled by the ichthyoplankton sampling net.

Release of water during the 2009 flooding from Jamestown Reservoir, near Jamestown, North Dakota.

The Souris River above Minot, ND with the streamgage house to the right.