Invasive Species
Developing Methods and Techniques to Control the Spread of Invasive Species
Developing Methods and Techniques to Control the Spread of Invasive Species
Columbia Environmental Research Center
Welcome to the Columbia Environmental Research Center. Our research focuses on environmental contaminants and the effects of habitat alterations on aquatic and terrestrial ecosystems.
News
New USGS model uses dragonflies to estimate freshwater mercury risk on U.S. protected lands
New USGS model uses dragonflies to estimate freshwater mercury risk on U.S. protected lands
USGS Friday's Findings - August 9, 2024
USGS Friday's Findings - August 9, 2024
Friday's Findings - January 26, 2024
Friday's Findings - January 26, 2024
Publications
Meta-analysis of a megafish: Assessing patterns and predictors of Alligator Gar movement across multiple populations
BackgroundFreshwater megafishes are among some of the most commercially and ecologically important aquatic organisms yet are disproportionately threatened with range and population reduction. Anthropogenic alterations of rivers influencing migrations are among the most significant causes for these declines. However, migratory fishes do not always respond similarly to movement barriers...
Reproductive biology of invasive grass carp (Ctenopharyngodon idella) in two North American systems
Grass carp (Ctenopharyngodon idella) are nonnative, herbivorous freshwater fish that represent an ecological threat in North American waters. However, data are limited on reproductive biology specific to wild populations in midwestern North America, despite recent concern for grass carp establishment within the Great Lakes. Basic information on reproductive traits could be useful to...
A high efficiency method for the extraction and quantitative analysis of 45 PFAS in whole fish
This study describes and validates a new method for extracting perfluoroalkyl and polyfluoroalkyl substances (PFAS) from whole-body fish tissue, demonstrates that freeze-dry preservation of tissue conserves bioaccumulative PFAS, and details a method demonstration on Lake Michigan fish. While fish filets are more commonly analyzed for their significance to human health, whole fish are...
Science
Life Cycle of Critical Minerals: A Balanced Approach to Meeting Our Nation's Resource Demands
Critical minerals are essential to the Nation’s economy and security. Demand for critical minerals is increasing, and it is essential to balance the societal need for these minerals with efforts to understand the effects of mining on other natural resources and to develop techniques to minimize these effects. The USGS Minerals Resources Life Cycle Integrated Science Team (IST) focuses on the life...
By
Ecosystems Mission Area, Energy and Mineral Resources Mission Area, Contaminant Biology, Environmental Health Program, Mineral Resources Program, Toxic Substances Hydrology, Columbia Environmental Research Center, Geology, Energy & Minerals Science Center, Geology, Geophysics, and Geochemistry Science Center, Geology, Minerals, Energy, and Geophysics Science Center
Modeling and Ecology in Action: Informing Invasive Species Management
The modeling team is at the forefront of developing and applying advanced quantitative methods to better understand and manage invasive species.
USGS Research on 6PPD-quinone: Where the Rubber Meets the Road
Stormwater and road runoff are recognized forms of pollution that can contain chemicals harmful to fish and other aquatic animals. This includes 6PPD-quinone, the oxidized form of the chemical compound 6PPD that is used to prevent tires from degrading and cracking, ensuring driver safety. As 6PPD-quinone sheds from tires during normal wear it can enter streams in stormwater runoff.