Images

This is a newly hatched two-lined salamander (Eurycea bislineata). Two-lined salamanders are a stream-adapted species, which means that the larvae are fully aquatic and live in streams.

USGS Scientist, Alexis Weinnig, working aboard the NOAA ship Okeanos Explorer to sample seawater with a niskin water bottle mounted on the back of the remotely operated vehicle (ROV). The water from the niskin bottles is filtered for eDNA to detect biological life in the water column. 

The Mohawk Remotely Operated Vehicle (ROV) returns to the NOAA Ship Pisces after a successful dive to survey benthic habitats in the Gulf of America

After exploring benthic communities in the deep Gulf of America, the remotely operated vehicle Mohawk (UNCW-Undersea Vehicles Program) is lifted back onto the NOAA Ship Pisces

A still image taken from a USGS Flow Photo Explorer camera (Pl_06.5) shows isolated pools in a small stream in Shenandoah National Park.

Northern dusky salamanders (Desmognathus fuscus) are a species of stream-adapted salamander found throughout the northeastern US. The larvae are aquatic and live in streams, while the adults live on streambanks. This individual is a juvenile, and it has only recently lost its gills and left the water.

A banded Golden-winged warbler, that died as a result of a window collision.                    

A band of a Golden-winged warbler, that died as a result of a window collision.                  

Using the Smith Root sampler for eDNA collection in Big Pool within Chesapeake and Ohio Canal National Park in June, 2023. eDNA will be extracted and sequenced to look for the presence of amphibians. 

Two 4-foot wide baffled chute fishways are tested side-by-side in the Conte Lab's Fish Passage Complex's east flume.  The fish ladders are instrumented with passive integrated transponder antennas/reader.  River herring, collected from the mouth of the Chicopee River are tested to assess entry and ascent rates.

USGS Fish Biologist Aaron Heisey and EESC colleagues enter the east flume in the Conte Lab's Fish Passage Complex after the conclusion of a study trial to recover adult white suckers.

Alexis Weinnig, a biologist with the USGS, explains the importance of USGS marine research and the partnership between UGSG and NOAA Ocean Exploration to a public audiance. This was during a port event in Seattle, WA. 

Overhead view of a microplate with a dilution gradient.  The targeted bioassay is designed to identify bioreactivity at varying concentrations. 

Charlie Shafer and Adrianne Brand staff the "Exploring Amphibians of the Northeast" booth at the 2023 Earth Day Celebration and Open House hosted at the USGS Eastern Ecological Science Center - Leetown Research Laboratory. 

EESC's Heather Walsh shows off the results of a fish dissection conducted as part of the 2023 Earth Day Celebration and Open House at the Leetown Research Laboratory. 

A hand-drawn sign welcomes visitors to the USGS Eastern Ecological Science Center's Aquatic Ecology Lab as part of the 2023 Earth Day Celebration and Open House at the Leetown Research Laboratory.

EESC's Health Walsh shows a public visitor anatomical structures of a fish as part of the 2023 Earth Day Celebration and Open House at the Leetown Research Laboratory. 

A visitor from the public learns about amphibians at the Northeast Amphibian Research and Monitoring Initiative's booth at the 2023 Earth Day Celebration and Open House at USGS Eastern Ecological Science Center - Leetown Research Laboratory.

USGS Eastern Ecological Science Center staff prepare for public visitors at the Northeast Amphibian Research and Monitoring Initiative booth, part of the 2023 Earth Day Celebration and Open House at the Leetown Research Laboratory.

Hellgrammites are the larval form of Dobson flies. These individuals were collected as part of the aquatic macroinvertebrates booth at the 2023 Earth Day Celebration and Open House hosted by the USGS's Eastern Ecological Science Center - Leetown Research Laboratory. 

An American toad, Anaxyrus americanus, is included as part of the exhibit booth "Exploring Amphibians of the Northeast" at the 2023 Earth Day Celebration and Open House at the USGS Eastern Ecological Science Center - Leetown Research Laboratory.