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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

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Friday's Findings - May 20, 2022

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Environmental DNA Research Sheds Light on Invasive Species

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Friday's Findings October 15 2021

Publications

Sixty years of channel adjustments to dams in the two segments of the Missouri National Recreational River, South Dakota and Nebraska

The Missouri National Recreational River (MNRR) consists of two Missouri River segments managed by the National Park Service on the border of South Dakota and Nebraska. Both river segments are unchannelized and maintain much of their pre-dam channel form, but upstream dams have caused reductions in peak flow magnitudes and sediment supply. The 39-mile segment is located between Fort Randall and Ga

Potential effects of energy development on environmental resources of the Williston Basin in Montana, North Dakota, and South Dakota — Species of conservation concern

The ecosystems of the Williston Basin provide direct and indirect benefits to society. These benefits include carbon sequestration, flood control, nutrient rich soils for agricultural productivity, and habitat for wildlife. This chapter’s main focus is on the effects of energy development on species that occupy the ecosystems in the Williston Basin. We compiled a list of documented species of cons

Genome resequencing clarifies phylogeny and reveals patterns of selection in the toxicogenomics model Pimephales promelas

BackgroundThe fathead minnow (Pimephales promelas) is a model species for toxicological research. A high-quality genome reference sequence is available, and genomic methods are increasingly used in toxicological studies of the species. However, phylogenetic relationships within the genus remain incompletely known and little population-genomic data are available for fathead minnow despite the poten

Science

Prior Exposure to Estrogen Enabled Bass to Better Survive A Bacterial Infection, but With an Energetic Price Tag

Summary of the published study: Exposure to 17α-ethinylestradiol results in differential susceptibility of largemouth bass (Micropterus salmoides) to bacterial infection (Leet et al. in review)
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Prior Exposure to Estrogen Enabled Bass to Better Survive A Bacterial Infection, but With an Energetic Price Tag

Summary of the published study: Exposure to 17α-ethinylestradiol results in differential susceptibility of largemouth bass (Micropterus salmoides) to bacterial infection (Leet et al. in review)
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Use and Evaluation of Stimuli for Herding Bigheaded Carps to Increase their Capture Efficiency

Mass removal of the invasive silver carp Hypophthalmichthys molitrix and bighead carp Hypophthalmichthys nobilis (collectively referred to as bigheaded carp) is a primary management action in the United States to contain population growth and reduce upstream dispersal. Efficient capture and removal techniques are required to achieve this goal, and the USGS is working to develop and evaluate such...
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Use and Evaluation of Stimuli for Herding Bigheaded Carps to Increase their Capture Efficiency

Mass removal of the invasive silver carp Hypophthalmichthys molitrix and bighead carp Hypophthalmichthys nobilis (collectively referred to as bigheaded carp) is a primary management action in the United States to contain population growth and reduce upstream dispersal. Efficient capture and removal techniques are required to achieve this goal, and the USGS is working to develop and evaluate such...
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Using Effects-Directed Analysis to test for Endocrine-Active Chemicals

Effects-directed analysis (EDA) reverse-engineers environmental toxicity testing by measuring effects on cells first, and identifying the particular chemicals later. In this publication, we reviewed published information on EDA methods to improve future methods.
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Using Effects-Directed Analysis to test for Endocrine-Active Chemicals

Effects-directed analysis (EDA) reverse-engineers environmental toxicity testing by measuring effects on cells first, and identifying the particular chemicals later. In this publication, we reviewed published information on EDA methods to improve future methods.
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