CERC Branch: Fish and Invertebrate Toxicology

Toxicology BranchEnvironmental fish and invertebrate toxicology scientists develop, apply, and validate methods for assessing the effects of contaminants and other environmental stressors on aquatic organisms. Research focuses on bioaccumulation and toxicity of contaminants from water, sediment, and food; the physical, chemical, and biological factors affecting these processes; and relationships between lab responses and characteristics of contaminated aquatic ecosystems.

Current environmental toxicology studies include standardization of acute and chronic toxicity test methods, bioavailability of metals associated with mining, toxicity assessments of confined animal feedlot effluents, and sensitivity evaluations of endangered fish, amphibians and mussels.

In The News

  • USGS Lab Upgrade Boosts Capabilities
    Friday, October 19, 2012
  • On the Job: Aquatic Toxicologist
    Thursday, September 23, 2010
    Unlike Nemo, not all fish have their dad, Dory and a flock of sea turtles to save them. For less fortunate fish, there are aquatic toxicologists. Meet Dr. Chris Ingersoll, who studies the effects of chemical contaminants on aquatic organisms in order to keep underwater environments safe.  Read More
  • Research Gets a Boost
    Friday, September 17, 2010
    The U.S. Geological Survey’s Columbia Environmental Research Center is about to get a face-lift courtesy of federal stimulus dollars. After years of requesting money to update its creaking laboratories and offices, the center will receive $10.7 million from the American Recovery and Reinvestment Act.  Read More
  • Experts Evaluate a Dangerous Spill
    Thursday, July 30, 2009
    USGS scientist Chris Ingersoll was interviewed and appeared on KOMU TV, Columbia, Mo., on July 30, 2009. The interview was about a biosolids spill along Missouri Callaway County Road UU, south of Columbia, due to a traffic accident. Dr. Ingersoll gave information regarding the transport and safety of biosolids, stating that this spill was not a hazard to the public.  Read More
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