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
Perfluorohexanesulfonic acid (PFHxS) impairs lipid homeostasis in zebrafish larvae through activation of PPARα
Perfluorohexanesulfonic acid (PFHxS), an emerging short-chain per- and polyfluoroalkyl substance, has been frequently detected in aquatic environments. Adverse outcome pathway studies have shown that perfluorinated compounds impair lipid homeostasis through peroxisome proliferator activated receptors (PPARs). However, many of these studies were performed at high concentrations and may thus be a re
Dopaminergic and anti-estrogenic responses in juvenile steelhead (Oncorhynchus mykiss) exposed to bifenthrin
The frequency of detection and concentrations of bifenthrin, a pyrethroid insecticide, in the waterways inhabited by the endangered species, steelhead trout (Oncorhynchus mykiss), has become a significant concern for regulatory agencies. Endocrine disruption has been observed with estrogenic and anti-estrogenic responses in fish species at different life stages. Since several studies have indicate
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
Science
Study Finds PFOSA Can Suppress Immune Function in Developing Zebrafish (Danio rerio)
The Stockholm Convention has labeled PFOS a “persistent organic pollutant” due to its long-enduring prevalence, negative toxicological effects, and ability to bioaccumulate in living things. Concerns about PFOSA have been raised due to its similarity to PFOS, its ability to metabolize into PFOS, and its persistent use today
Agricultural Pesticides Could Be Impacting the Natural Beauty at Sequoia National Park Through Atmospheric Deposition
High up in the remote alpine and subalpine lakes of Sequoia and Kings Canyon National Park (SEKI), the crystal-clear lakes appear to be greening with an overpopulation of periphyton. Periphyton is a mixture of various water microbes such as algae, cyanobacteria, and others. Scientists at the USGS Columbia Environmental Research Center and the University of Missouri are working with National Park...
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.