Fish
Fish
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Supporting Interstate Conservation of Atlantic Sturgeon (Acipenser o. oxyrinchus) Using Genetics, Telemetry, and Side-scan Sonar
USGS scientists are using innovative combinations of telemetry, genetics, and side-scan Sonar to support conservation of endangered Atlantic sturgeon ( Acipenser o. oxyrinchus).
Investigating Blotchy Bass Syndrome in Black Basses (Micropterus spp)
USGS is studying the spread and effects of “blotchy bass syndrome” on black basses ( Micropterus spp). USGS and state agencies have partnered with citizen scientists and recreational organizations to create a continent-wide biosurveillance network to monitor the syndrome.
Conservation Genetics of American Shad (Alosa sapidissima) and River Herring (Alosa aestivalis and Alosa pseudoharengus)
USGS scientists are studying American shad ( Alosa sapidissima), blueback herring ( Alosa aestivalis), and alewife ( Alosa pseudoharengus; collectively “alosines”) to develop robust genetic baselines that will inform management practices for individual species.
Fish Passage Research to Identify the Ideal Fishway Entrance for River Herring (Alosa spp)
USGS is working to identify an improved fishway entrance design for two at-risk species, blueback herring ( Alosa aestivalis) and alewife ( Alosa pseudoharengus).
Development and Evaluation of the Novel East Coast Fish Ladder
USGS is working to establish a new East Coast fish ladder design that would help a multitude of aquatic species move easier in our waterways.
Production, Behavior, and Survival of Juvenile Shad and River Herring
USGS is conducting research to better understand biology, behavior, and survival of juvenile fishes that travel between fresh and saltwater to complete their lifecycles. Migratory fishes as such as herring and shad are vital components in riverine and coastal ecosystems, transporting food and nutrients between fresh rivers and the ocean. They are also an important forage fish for predators in...
Using Multiple Indicators to Assess Stream Condition in the Chesapeake Bay
USGS is working with federal, state and local partners to develop multiple assessments of stream and river conditions in non-tidal areas of the Chesapeake Bay watershed. These assessments will help managers preserve stream health and improve biological conditions in impaired streams as the human population and climate continue to change in this region.
New studies reveal ecological importance of fine-scale groundwater connectivity for streams during drought
Stream ecosystems support vital resources that may be jeopardized by climate change and climate stressors such as drought.
Sturgeon Occurrence and Behavior in the Outer Continental Shelf
A new study aims to collect information on sturgeon temporal and spatial distribution to inform offshore wind energy and sand leasing operations.
Invasive Blue Catfish Science to Support Conservation and Fisheries Management
Dietary analyses, health, and reproduction of blue catfish in tributaries of the Chesapeake Bay inform ecosystem impacts and mitigation strategies for this aquatic nuisance species.
Eastern Ecological Science Center partnership with Atlantic States Marine Fisheries Commission
Collaboration between the world-class expertise of USGS scientists, the Atlantic States Marine Fisheries Commission’s Science Program, and state and federal fishery agencies demonstrates the power of partnerships to solve seemingly-insurmountable problems in sustainable and cooperative management of Atlantic coastal fisheries.
Alosine Genetic Stock Identification and Tissue Repository
American Shad ( Alosa sapidissima), Blueback Herring ( Alosa aestivalis), and Alewife ( Alosa pseudoharengus; collectively “alosines”) once supported large fisheries along the U.S. Atlantic Coast. However, impassable migration barriers, declines in habitat quality, and exploitation have led to declines in many spawning populations. Substantial resources have been invested to support the recovery...