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
Event: Explore USGS Careers in the Southeast 2024
Event: Explore USGS Careers in the Southeast 2024
Publications
Exposure to the Polychlorinated biphenyl mixture Aroclor 1254 elicits neurological and cardiac developmental effects in early life stage zebrafish (Danio rerio)
The goal of this study was to compare the bioaccumulation of the PCB mixture Aroclor 1254 in zebrafish to cardiac and neurologic outcomes. The establishment of effect concentrations (ECs) for cardiac and neurotoxic effects of PCBs in early life stage fish is challenging due to a lack of measured PCB concentrations in test media (e.g., fish tissue), the lack of standard exposure methods...
A universal method for the simultaneous determination of environmental pollutants in marine biological samples: Per- and polyfluoroalkyl substances and antibiotics as a case study
Conventional detection technologies for environmental contaminants have primarily focused on providing accurate qualitative and quantitative evaluations for single pollutant types, leading to increased costs and an inability to satisfy the growing demand for detecting a broader spectrum of pollutants. Here, we introduced a novel analytical method to simultaneously measure the...
Perfluorohexanesulfonic acid (PFHxS) induces hepatotoxicity through the PPAR signaling pathway in larval zebrafish (Danio rerio)
In recent years, the industrial substitution of long-chain per- and polyfluoroalkyl substances (PFAS) with short-chain alternatives has become increasingly prevalent, resulting in the widespread environmental detection of perfluorohexanesulfonic acid (PFHxS), a short-chain PFAS. However, there remains limited information about the potential adverse effects of PFHxS at environmental...
Science
Per- and Polyfluoroalkyl Substance (PFAS) Core Technology Team
The Per- and Polyfluoroalkyl Substance (PFAS) Core Technology Team (CTT) within the Environmental Health Program partners with external and internal stakeholders to develop and apply analytical methods for measuring PFAS in complex matrices, addressing environmental health issues related to transport, distribution, fate, effects, and exposure.
Development of a Ploidy Distinction Application: A Machine Learning Approach for Discriminating Triploid and Diploid Grass Carp (Ctenopharyngodon idella) in the Field
USGS scientists are researching a machine learning approach that can enable fisheries personnel in the field to determine the ploidy of wild-caught invasive carp.
Gut-Liver Axis: Review on How Microplastics Can Cause Toxicity Through an Interaction Between the Gut, Microbial Community, and Liver
Microplastics can cause liver damage when consumed by terrestrial and aquatic organisms. This review proposes a novel mechanism to help explain the toxic effects following ingestion, which involves the gut, microbial community, and liver through the gut-liver axis.