Images

Great Lakes Science Center fisheries technician Stacey Ireland deploying minnow traps in western Lake Erie to collect fishes for the parasite research team. Photo credit Ed Roseman USGS GLSC. 

A lagoon covered with a floating mat of aquatic plants at West Beach, Indiana Dunes National Park, Indiana. Photo credit: Johanna Nifosi, USGS.

USGS divers “smile" for the underwater camera after a successful algae and mussel collection. Photo credit: Megan Lewan, USGS.

USGS Great Lakes Science Center technician Jared Lesniewicz processes an ichthyoplankton sample during a survey assessing grass carp spawning in the Cuyahoga River, a Lake Erie tributary in Cleveland, Ohio. As of the 2024 sampling season, no grass carp spawning has been documented in the Cuyahoga River. Photo Credit: James Roberts, USGS.

USGS technicians seining for juvenile lake whitefish on a foggy morning in Little Traverse Bay, Lake Superior, with the USGS research vessel Hammond anchored in the background. Photo credit: Mike Lowe, USGS.

In Lake Erie, a USGS scuba diver swims with a smallmouth bass (Micropterus dolomieu) who is curious about the diver’s algae and mussel collections. Photo credit: Madeleine Giordano, USGS.

USGS scuba divers collect bottom water for environmental-DNA and nutrient analysis. Photo credit: Shelby Eagan, USGS.

GLSC research ecologist, Nick Johnson (Center), releases sterilized male sea lamprey into the Pigeon River in northeastern Michigan as WIRED Magazine journalist, Michael Tessler (right), photographs the release. GLSC technician, Tyler Bruning (left), pauses his release of sterilized male sea lamprey while Nick’s are photographed.

Watching the clouds roll in as a USGS crew heads back to shore near Olcott, New York, after a day of field work on Lake Ontario. Photo credit: Jessica Oswald, USGS (contractor).

A USGS Great Lakes Science Center scuba diver peers at a clump of Cladophora algae swaying in the Lake Ontario current. Photo credit: Madeleine Giordano, USGS.

Technicians and crewmembers deploying a bottom trawl net off the stern of the USGS research vessel Kiyi in Lake Superior on the west side of Grand Island, Michigan. Photo credit: Lori Evrard, USGS.

Tall stems of the invasive common reed, Phragmites australis. Photo credit: Taaja Tucker-Silva, USGS.

USGS scuba diver Madeleine Giordano collects mussels and algae samples from inside her quadrat while the USGS research vessel Stonecat looms above. Photo credit: Megan Lewan, USGS.

Local Indiana Congressman Frank Mrvan (IN-01) and Colorado Congressman Joe Neguse (CO-02) visit the USGS Lake Michigan Ecological Research Station in Chesterton, Indiana, located within the Indiana Dunes National Park. Pictured left to right: Kasia Przbyla-Kelly USGS, Ralph Grundel USGS, Murulee Byappanahalli USGS, Rep. Joe Neguse, Rep.

Participants at Phragmites Adaptive Management Framework training in norther Wisconsin, June 2022. Photo credit: Taaja Tucker-Silva, USGS. 

The GLSC-Yakima Nation collaborative team. Nick Johnson and Trisha Searcy, from the Hammond Bay Biological Station meet Researchers in Washington state to participate in an information exchange and learn about efforts to restore lamprey native to the Pacific Northwest.

A multi-beam sonar image captured by Great Lakes Science Center researchers in June 2022.

The USGS research vessel Kiyi heading out under the Duluth Aerial Lift Bridge at dawn. Photo credit: Lori Evrard, USGS.

An ichthyoplankton net sample within a collection bucket from the Sandusky River in May of 2022. Grass carp (Ctenopharyngodon idella) eggs are pictured in the foreground (semi-transparent spheres). Photo Credit: James Roberts, USGS

GLSC’s Ellie Olds presents her research on Egg Mat Collection and Retention Biases for Lithophilic Spawning Fishes.

The sun rising over Lake Superior near Gay, Michigan on the Keweenaw Peninsula. Photo credit: Alden Tilley, USGS.