Fish and Aquatic Species
Fish and Aquatic Species
The USGS is the only federal science agency dedicated to providing independent research that supports the conservation and management of the nation’s fisheries. Our researchers develop and apply specialized tools such as genetic tracking, hydrologic modeling, and fish disease diagnostics to answer the most pressing questions facing federal, Tribal, state, and local resource managers.
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Genetic Analysis of Wild and Captive Black Carp in the Mississippi River Basin
Black carp have likely been present in the Mississippi River since the 1990s, but their current distribution and spread is not well understood. Genetics is helping to shed light on this species, including its diversity, the relatedness of wild and captive fish, and its introduction history.
Connectivity of Tropical Marine Ecosystems: Understanding Biodiversity and Trophic Relationships in the Virgin Islands and Puerto Rico
Marine reserves and protected areas in the U.S. Virgin Islands and Puerto Rico encompass a variety of tropical ecosystems, including coral reefs, mangroves, and seagrass beds, but questions remain regarding how effective these areas are at preserving and protecting the habitats and species they encompass. USGS and collaborators address this question by examining the biodiversity and food web...
Use of a Sustained-Release Chemical Delivery Device in Assessing Effects of Systemic Insecticides
Neonicotinoid insecticides the fastest growing insecticide worldwide - and may play a role in the declines of terrestrial and aquatic vertebrate species.
Adaptive Habitat Conservation for Flatwoods Salamanders
USGS scientists investigate adaptive habitat conservation for Flatwoods salamanders.
Eastern Ecological Science Center's Living Stream Laboratory (video)
Welcome to the Experimental Stream Lab at the US Geological Survey Eastern Ecological Science Center's Leetown Research Laboratory in Kearneysville West Virginia.