Images

Cooperative Research Units in the Northeast Region

Cooperative Research Units located in the Southeast Region.

Daniela Rojas-Cañizales, graduate student at the Florida Cooperative Fish and Wildlife Research Unit, takes First Place award-winning poster, “Beyond the shell: Exploring the dimensions of sea turtle take in Bocas del Toro, Panama, Conservation Posters at the 44th International Sea Turtle Symposium in Kona, Hawaii.

 

Daniela Rojas-Cañizales, a graduate student at our Florida Cooperative Fish and Wildlife Research Unit, took First Place in Conservation Posters at the 44th International Sea Turtle Symposium in Kona, Hawaii (March 2026)! WTG!!!

Fish on! The new book, Understanding Recreational Fishers, brings together experts from the social sciences to explain how recreational fishing can be studied where people and the environment are closely linked. The book is useful for the public, students, social scientists, and ecologists.

Two black bass (Micropterus spp.) caught during the 2026 Bassmaster Classic in Knoxville, TN held on the Tennessee River. The fish on the left is a smallmouth bass, the fish on the right is what is known by bass anglers as a “meanmouth,” which is a hybrid between Alabama bass (M. henshalli) and smallmouth bass (M. dolomieu). Tom Miles, TTU PhD student.

A map of the Cooperative Research Units in the western region. 

A map of Cooperative Research Unit locations in three regions (West, Northeast, Southeast) with a national program office located at the U.S. Geological Survey headquarters in Reston, Virginia.

A federally threatened narrow-headed gartersnake from central Arizona captured and marked by the Arizona Cooperative Fish and Wildlife Research Unit as part of an ongoing monitoring project for this species.

Lowell Baier (left) and John Organ (right) pose for a picture. Lowell was a warrior and a great friend of the USGS Cooperative Fish and Wildlife Research Unit Program.

Dan Ashe (left), Simon Roosevelt, Theodore "Teddy" Roosevelt's great-great-grandson (center), and Lowell Baier (right) pose for a photo at the Mayflower Hotel in Washington, DC, where Lowell received the National Wildlife Federation’s Ding Darling Award. 

Guadalupe bass is an economically and ecologically important black bass species endemic to the Edwards Plateau ecoregion and the lower portions of the Colorado River in central Texas.

USGS researchers at the Arkansas Cooperative Fish and Wildlife Research Unit are working with partners on a model to simulate stream water withdrawals in natural flow regimes of the Interior Highlands with and without monitoring.

USGS researchers at the Mississippi Cooperative Fish and Wildlife Research Unit, in collaboration with the U.S. Army Corps of Engineers, established a conceptual framework for the management of this vast floodplain.

USGS researcher at the Oklahoma Cooperative Fish and Wildlife Research Unit tags two pronghorn fawns in Oklahoma.

USGS researchers at the Mississippi Cooperative Fish and Wildlife Research Unit, in collaboration with the U.S. Army Corps of Engineers, established a conceptual framework for the management of this vast floodplain.

USGS researchers at the Mississippi Cooperative Fish and Wildlife Research Unit, in collaboration with the U.S. Army Corps of Engineers, established a conceptual framework for the management of this vast floodplain.

Gaudineer Knob in eastern West Virginia is home to one of the few remaining old-growth red spruce forests in the region, sitting as a unique reminder of what red spruce forests once looked like across the central and southern Appalachians. 

USGS researchers with the Northeast Climate Adaptation Science Center (NE CASC) and Virginia Cooperative Fish and Wildlife Research Unit, and graduate students at Virginia Polytechnic Institute and State University (Va Tech) are working with the Central Appalachian Red Spruce Restoration Initiative, U.S. Forest Service, U.S.

Anglers and partners measure lake sturgeon in South Dakota. USGS researchers at the Idaho Cooperative Fish and Wildlife Research Unit are working with the Idaho Department of Fish and Game to better understand steelhead fisheries. Throughout the northwestern U.S., steelhead, along with Pacific salmon, support incredibly popular sport fisheries.

USGS researchers at the South Dakota Cooperative Fish and Wildlife Research Unit (SD Unit), in partnership with South Dakota State University's (SDSU) Department of Natural Resource Management will begin a three-year collaborative study with South Dakota Game, Fish and Parks and the Minnesota Department of Natural Resource Management in which they will look to under