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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

USGS and state partners to test bait platforms to catch invasive carp in Upper Mississippi River

USGS and state partners to test bait platforms to catch invasive carp in Upper Mississippi River

Inaugural USGS Wildlife Health Awareness Day - April 25, 2025

Inaugural USGS Wildlife Health Awareness Day - April 25, 2025

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

Publications

Effects of dietary selenium on the amphipod Hyalella azteca and the midge Chironomus dilutus Effects of dietary selenium on the amphipod Hyalella azteca and the midge Chironomus dilutus

Chronic selenium (Se) water quality criteria are based primarily on dietary organoselenium exposure and subsequent reproductive effects in fish. Available chronic Se toxicity data suggests that invertebrates are less sensitive than fish, but chronic invertebrate studies are limited. We evaluated yeast-based diets for chronic toxicity studies with Hyalella azteca and Chironomus dilutus...
Authors
John Besser, Danielle Cleveland, David Harper, Rebecca Dorman, Aida Farag

Water temperature regimes and thermal drivers in semi-natural and flow-regulated rivers of the northern Great Plains Water temperature regimes and thermal drivers in semi-natural and flow-regulated rivers of the northern Great Plains

Rivers of the northern Great Plains have lacked long-term, continuous water temperature assessments, and there is limited information on thermal regimes of these systems and factors driving water temperature. We collected and assembled 2001–2022 water temperature data from 18 sites on four reaches of three rivers that differ in anthropogenic impacts: semi-natural Yellowstone River (YR)...
Authors
Patrick Braaten, T. Ritter, Tyler Haddix, David Fuller, John Hunziker, John Hargrave

Bioaccumulation and transfer of per- and polyfluoroalkyl substances (PFAS) in a stream and riparian food web contaminated by food processing wastewater Bioaccumulation and transfer of per- and polyfluoroalkyl substances (PFAS) in a stream and riparian food web contaminated by food processing wastewater

We evaluated the bioaccumulation and transfer of per- and polyfluoroalkyl substances (PFAS) in a stream food web contaminated by a food processing facility. Abiotic (i.e., water, sediment, and foam) and biotic (i.e., algae, aquatic insect larvae and adults, fish, and riparian spiders) matrices were sampled upstream and downstream of the facility’s wastewater outfall. Compared with...
Authors
Christopher Kotalik, Laura Hubbard, Brittany Perrotta, David Walters, Dana W. Kolpin, James Gray, Alison Zachritz, Johanna Kraus, Carrie Givens, Gary Lamberti, Karen Kidd

Science

From Stream to Spider: How PFAS Move Through Aquatic and Terrestrial Food Webs

Per- and polyfluoroalkyl substances (PFAS) are persistent synthetic chemicals that accumulate in the environment and living organisms. A USGS study examined how different PFAS compounds move through a stream ecosystem and are transferred from aquatic to terrestrial food webs. The findings documented that not all PFAS behave the same once they enter the environment, leading to differences in...
From Stream to Spider: How PFAS Move Through Aquatic and Terrestrial Food Webs

From Stream to Spider: How PFAS Move Through Aquatic and Terrestrial Food Webs

Per- and polyfluoroalkyl substances (PFAS) are persistent synthetic chemicals that accumulate in the environment and living organisms. A USGS study examined how different PFAS compounds move through a stream ecosystem and are transferred from aquatic to terrestrial food webs. The findings documented that not all PFAS behave the same once they enter the environment, leading to differences in...
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eDNA for Water-Quality Monitoring and Public Health Protection

eDNA for Water-Quality Monitoring and Public Health Protection

By analyzing genetic traces left behind in water, eDNA provides early warning signs of problems—helping managers respond faster, protect public health, and keep freshwater ecosystems resilient.
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