Images

A bull elk (Cervus canadensis) observed in Michigan’s Pigeon River Country State Forest while checking sea lamprey nets during a sea lamprey treatment. Photo credit: Tyler Bruning, USGS.

Two USGS technicians lowering a conductivity, temperature, and depth sensor into Lake Superior at dusk on the back deck of the Great Lakes Science Center’s research vessel Kiyi during a nighttime survey. Photo credit: Lori Evrard, USGS.

A group of Bleeding Fairy Helmet fungi (Mycena haematopus) infected by other fungi hyphae and separated from a healthy colony, as seen in Heron Rookery, Indiana Dunes National Park, Indiana. Photo credit: Johanna Nifosi, USGS.

Aaron Aunins (Eastern Ecological Science Center, Leetown, West Virginia) prepares samples for polymerase chain reaction (PCR) as Kasia Kelly (left) and Dawn Shively (middle) (both from Great Lakes Science Center, Chesterton, Indiana) observe and document the procedure. Photo credit: Murulee Byappanahalli, USGS.

Characteristic impact of bioherbicide on Phragmites leaf tissue. Browning/yellowing of leaf tissues and dark spots formation indicate cellular death and microbial community bloom (i.e., mold), respectively. Photo credit: USGS

The Monterey Bay Aquarium Research Institute’s Long Range Autonomous Underwater Vehicle (LRAUV) on the beach in Muskegon, Michigan, prior to being launched into Lake Michigan for a mission with USGS scientists. Photo credit: Alden Tilley, USGS.

A determined USGS research crew sets out on Lake Huron by small vessel to lift micromesh gillnets in search of elusive juvenile lake whitefish. Photo credit: Cory Brant, USGS.

A flathead catfish (Pylodictis olivaris) captured along an electrofishing transect at the Shiawassee National Wildlife Refuge near Saginaw, Michigan. Photo credit: Sasha Bozimowski, USGS.

This invasive sea lamprey (Petromyzon marinus) was spawned in the laboratory using artificial fertilization methods. It is 6 weeks post-fertilization and feeding externally. Photo credit: Trisha Searcy, USGS.

USGS Director Applegate (center) gathers near a remotely-helmed Saildrone Explorer with U.S. Congressman Tom Tiffany (WI) (second from left), USGS Great Lakes Science Center Director Russell Strach (second from right), Saildrone Director of Ocean Data Programs Matt Womble (right), and USGS Biologist Josh Miller (left) on August 9, 2022, in Ashland, Wisconsin.

DOI Assistant Secretary for Water and Science Tanya Trujillo and USGS Director David Applegate learn about hydroacoustics technology aboard the USGS research vessel Kiyi from USGS scientist Dan Yule and fishery management partners, August 9, 2022.

A Saildrone uncrewed surface vehicle and the USGS research vessel Kiyi at the Ashland, Wisconsin, launch event in early August to kick off the month-long mission in western Lake Superior. Photo credit: Andrea Miehls, USGS

USGS Director David Applegate delivers remarks during the celebration of USGS advanced technologies in fisheries science on the Great Lakes, August 9, 2022, in Ashland, Wisconsin. Photo credit: Andrea Miehls, USGS.

DOI and USGS leadership, scientists, and staff are joined by Great Lakes fishery science and management partners for an evening cruise aboard the 107’ USGS research vessel Kiyi in Lake Superior off Ashland, Wisconsin, on August 8, 2022.

USGS biologist Stacy Simanonok captures a bumble bee in a net during a pollinator survey in the grasslands of the North Dakota plains. Researchers are testing environmental DNA sampling methods to determine if this less invasive way to survey for pollinators generates similar results as traditional netting methods.

Staff member from the Great Lakes Commission performing annual monitoring for the Phragmites Adaptive Management Framework (PAMF). Photo Credit: Taaja Tucker-Silva, USGS.

Monitoring invasive Phragmites australis as part of the Phragmites Adaptive Management Framework. Credit: Theresa Gruninger, USGS.

An invasive sea lamprey egg fertilized in the lab at the USGS Hammond Bay Biological Station on August 1, 2022, and photographed at stage 2 of its development. Photo credit: Trisha Searcy, USGS.

Lotus pads (Nelumbo lutea) and cattails (Typha sp.) emerging in the Metzger Marsh Wildlife Area adjacent to Lake Erie. Photo credit: Kaira Liggett, USGS (contractor).

USGS Great Lakes Science Center’s research vessel Kiyi moored at a breakwater in Lake Superior at Grand Marais, Minnesota. Photo credit: Joe Walters, USGS.

GLSC’s Kaira Liggett next to a floating mass of cut Phragmites at Metzger Marsh in Oak Harbor, OH. Photo credit: Wes Bickford, USGS.