Species Status Assessments
Species Status Assessments
The USGS Fisheries Program develops valuable tools for assessing species’ vulnerability to environmental stressors, focusing on 3 critical elements: exposure (magnitude of change), sensitivity (likelihood of adverse impacts), and adaptive capacity (species’ ability to cope with change).
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WaterSMART: Improving Tools for Assessing and Forecasting Ecological Responses to Hydrologic Alteration
WaterSMART (Sustain and Manage America’s Resources for Tomorrow) is a program of the Department of the Interior that focuses on improving water conservation and helping water-resource managers make sound decisions about water use.
Identifying Fish Nursery Habitats Using Otolith Elemental Fingerprints
Fish otoliths - ear bones - can be used to identify the fish nursery habitat used by estuarine fish.
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.
Systematic Studies of Southeastern Fishes
The southeastern United States is home to a variety of freshwater snails, mussels, crayfish, and fishes. USGS scientists are conducting systematic studies to better document the region's biodiversity.