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Explore Search: Fish and Aquatic Species

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General
A Deepwater Sculpin from Lake Huron

Fish and Aquatic Species Publications

Project
Infographic showing hydropeaking vs natural river flow

Bug Flows: Improving Food Web Health on the Colorado River

Project
A huge canyon surrounded by deep-set cliffs opens to reveal a sunny gorge and part of the Colorado River.

Grand Canyon Monitoring and Research Projects

publication
image of publications layered on a wooden table

Round goby detection in Lakes Huron and Michigan— An evaluation of eDNA and fish catches

Research
Sockeye salmon swimming in a circle

Species We Study: Fish

Featured Films and Shorts
Screenshot of opening scene of video

The Importance of Aquatic Connectivity for Maintaining Cold-water Species in the Face of Climate Change

Project
Lionfish are spreading through the Western North Atlantic, Caribbean Sea, and the Gulf of Mexico

Non-native Marine Fishes: Tracking Distributions with the USGS Nonindigenous Aquatic Species Database

Project
Micropterus dolomieu (smallmouth bass)

Defining Native Ranges of U.S. Inland Fishes

Research
Spawing sockeye salmon in a Matanuska River side channel, Alaska

Fish and Aquatic Ecology

Photography
Work station for fish species identification showing a dissecting microscope

Work station for fish species identification

Project
USGS science for a changing world

Development of a Broad Microarray Technology to Survey for Aquatic Pathogens

General
coiled up eel laying in a fishing net

Eastern Ecological Science Center partnership with Atlantic States Marine Fisheries Commission

publication
image of publications layered on a wooden table

Effects of twenty-five compounds on four species of aquatic fungi (Saprolegniales) pathogenic to fish

Project
USGS science for a changing world

Investigation Into Mass Mussel Die-off Events

Project
Hydrologic technician Brian Anderson prepares to launch the Z-boat on the Current River

Physical Stream Dynamics and Native Mussel Habitats

publication
image of publications layered on a wooden table

Toxicity of carbon dioxide to freshwater fishes: Implications for aquatic invasive species management

Project
Spawning Reef Restoration for Native Lake Sturegon in St. Clair River

Aquatic Native Species and Habitat Restoration: Custodial Maintenance of Fish Spawning Reefs

Project
Male atlantic salmon showing a kype in lower jaw

Aquatic Native Species and Habitat Restoration: Restoring native freshwater fish populations

Project
Juvenile Winged Mapleleaf

Evaluate Propagation Efforts and Determine Dispersal Patterns for Quadrula fragosa from Tagged, Artificially Infested Host Fish (Ictalurus punctatus) in the St. Croix National Scenic Riverway (SACN)

Project
Brooding Winged Mapleleaf displaying its mantle magazine during September in the St. Croix River.

Improving Survival of Juvenile Winged Mapleleaf Mussels (Quadrula fragosa) Through Identification of Host Fish Overwintering Areas

Research
Chinook salmon (Oncorhynchus tshawytscha)

Chinook Salmon (Oncorhynchus tshawytscha)

publication
image of publications layered on a wooden table

Evolutionary and ecological connectivity in westslope cutthroat trout (Oncorhynchus clarkii lewisi) and mountain whitefish (Prosopium williamsoni) in relation to the potential influences of Boundary Dam, Washington, Idaho, and parts of British Columbia

Research
Antimycin A structure

Comparative Freshwater Fish Toxicity Testing of Antimycin A

Data Release
Collage of images of an earthquake, scientists in flood with instruments, a volcano erupting, and seismic illustration.

Detection of Multiple Fish Species Using Environmental DNA (eDNA), Alaska 2018

Research
American Shad

Alosine Genetic Stock Identification and Tissue Repository

Research
A lot of small fish from a fyke net set near Kaktovik, AK. Biologists sort through them.

Nearshore Fish Surveys in the Beaufort Sea

Data Release
Collage of images of an earthquake, scientists in flood with instruments, a volcano erupting, and seismic illustration.

High-resolution bathymetry and backscatter data collected near the Stamp Sands of Lake Superior in 2021

Research
WERC Fisheries Database Info Photo

Pacific Coast Fisheries GIS Resource Database

Project
An apple snail in the experimental mesocosm with individual markings

Effects of Native and Non-native Fishes on Native Apple Snail Population Dynamics

Project
A cutthroat trout up close. James Roberts photo. USGS.

Ecological Responses to Fish Reclamation Treatments