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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

Potential thiamine deficiency of phytoplankton across a productivity gradient and seasons in Ohio lakes Potential thiamine deficiency of phytoplankton across a productivity gradient and seasons in Ohio lakes

Although nitrogen and phosphorus deficiency of algal blooms have been the focus of substantial attention, organic nutrients can limit algal growth in aquatic systems. Growing evidence indicates thiamine (vitamin B1) can influence the community of primary producers in marine systems, but comparatively little is known about the effect of thiamine on freshwater algal productivity.We...
Authors
Freya Rowland, Michael Vanni, Nicole Hayes, Clifford Kraft

Spatial distribution and relative biomass of bigheaded carps in Lake Balaton, Hungary estimated from an environmental DNA survey Spatial distribution and relative biomass of bigheaded carps in Lake Balaton, Hungary estimated from an environmental DNA survey

Silver carp (Hypophthalmichthys nobilis), bighead carp (H. molitrix) and their hybrids, collectively known as bigheaded carps, have been introduced to Lake Balaton, Hungary. The current stock sizes are difficult to assess. We investigated environmental DNA (eDNA) techniques targeted for bigheaded carps, assessed the spatial distribution of eDNA in Lake Balaton, compared eDNA...
Authors
Nora Boross, Ardo Laszlo, Duane Chapman, Gergely Boros, Zoltán Vitál, Viktor Tóth, Nathan Thompson, Katy Klymus, Catherine Richter

Do bighorn sheep use desert tortoise burrow spoil piles as mineral licks in southern California? Do bighorn sheep use desert tortoise burrow spoil piles as mineral licks in southern California?

In a previous study, bighorn sheep (Ovis canadensis) were periodically photographed by trail cameras when they visited desert tortoise (Gopherus agassizii) burrows in the San Bernardino Mountains near Palm Springs, California, USA. The authors suggested that bighorn sheep may utilize the excavated spoil material from burrows as a mineral lick. To test that supposition, we collected soil...
Authors
Jeffrey Lovich, Danielle Cleveland, Charles Yackulic, Kristy Cummings, Michele Puffer, Molly Bechtel, Christopher Tracy, William Hoese, Gerardo Avila, Megan Peukert, Samantha Hubbard

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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