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
USGS Friday's Findings - August 9, 2024
USGS Friday's Findings - August 9, 2024
Event: Explore USGS Careers in the Southeast 2024
Event: Explore USGS Careers in the Southeast 2024
Friday's Findings - January 26, 2024
Friday's Findings - January 26, 2024
Publications
Perfluorooctane sulfonamide induced autotoxic effects on the zebrafish immune system
Perfluorooctane sulfonamide (PFOSA) is an immediate perfluorooctanesulfonate (PFOS) precursor (PreFOS). Previous studies have shown PFOSA to induce stronger toxic responses compared to other perfluorinated compounds (PFCs). However, the specific nature of PFOSA-induced toxicity, whether autonomous or mediated by its metabolite PFOS, has not been fully elucidated. This study systematically investig
Side-scan sonar as a tool for measuring fish populations: Current state of the science and future directions
Side-scan sonar (SSS) is a powerful tool that can be used to address many key questions in fisheries science. In principle, SSS uses dual transducers to transmit a narrow-beam, wide-angle acoustic signal as the survey vessel transits an area. The intensity of reflected sound is recorded to generate an image mosaic comprised of benthic substrates and targets in the water column, including organisms
Evaluation of short-term mussel test for estimating toxicity
Effect concentrations of ammonia, nickel, sodium chloride, and potassium chloride from short-term 7-day tests were compared to those from standard chronic 28-day toxicity tests with juvenile mussels (fatmucket, Lampsilis siliquoidea) to evaluate the sensitivities of the 7-day tests. The effect concentrations for nickel (59 µg Ni/L), chloride (316–519 mg Cl/L, a range from multiple tests), and pota
Science
U.S. Geological Survey Develops Per- and Polyfluoroalkyl Substances (PFAS) Sampling Guide
USGS scientist’s published a Per- and Polyfluoroalkyl Substances (PFAS) sampling guide for personnel involved with Natural Resource Damage Assessment and Restoration (NRDAR) activities. This guide introduces individuals involved in NRDAR efforts and other investigators to key concepts and considerations when sampling different environmental media for PFAS.
Bringing Back Mussels: CERC's Restoration Efforts in the Clinton Watershed
CERC scientists plan to reintroduce mussels in an area where species have diminished.
6PPD-Quinone
6PPD-Q is a compound used to make tires more durable and is also linked to toxicity for Coho Salmon and other aquatic species.