Article

DNA damage and radiocesium in channel catfish from chernobyl

  1. Derrick W. Sugg1,*,
  2. Janet A. Brooks1,
  3. Charles H. Jagoe1,
  4. Michael H. Smith1,
  5. Ronald K. Chesser1,
  6. John W. Bickham2,
  7. Michael D. Lomakin3,
  8. Cham E. Dallas4,
  9. Robert J. Baker5

Article first published online: 26 OCT 2009

DOI: 10.1002/etc.5620150706

Issue

Environmental Toxicology and Chemistry

Environmental Toxicology and Chemistry

Volume 15, Issue 7, pages 1057–1063, July 1996

Additional Information

How to Cite

Sugg, D. W., Brooks, J. A., Jagoe, C. H., Smith, M. H., Chesser, R. K., Bickham, J. W., Lomakin, M. D., Dallas, C. E. and Baker, R. J. (1996), DNA damage and radiocesium in channel catfish from chernobyl. Environmental Toxicology and Chemistry, 15: 1057–1063. doi: 10.1002/etc.5620150706

Author Information

  1. 1

    Division of Wildlife Ecology and Toxicology, University of Georgia Savannah River Ecology Laboratory, P.O. Drawer E, Aiken, South Carolina 29802, USA

  2. 2

    Department of Wildlife and Fisheries Sciences, Texas A & M University, College Station, Texas 77843, USA

  3. 3

    International Research and Development Agency, P.O. Box 158, 252001 Kiev-1, Ukraine

  4. 4

    Department of Pharmacology and Toxicology, University of Georgia, Athens, Georgia 30602, USA

  5. 5

    Department of Biological Sciences, Texas Tech University, Lubbock, Texas 79409, USA

*Division of Wildlife Ecology and Toxicology, University of Georgia Savannah River Ecology Laboratory, P.O. Drawer E, Aiken, South Carolina 29802, USA

Publication History

  1. Issue published online: 26 OCT 2009
  2. Article first published online: 26 OCT 2009
  3. Manuscript Accepted: 15 DEC 1995
  4. Manuscript Received: 22 AUG 1995

Funded by

  • U.S. Department of Energy. Grant Number: DE-AC09-76SR00-819
  • University of Georgia's Savannah River Ecology Laboratory. Grant Number: DE-AC09-76SR00-819

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Keywords:

  • Catfish;
  • Chernobyl DNA damage;
  • Micronuclei;
  • Radiocesium

Abstract

The explosion of the Chernobyl Nuclear Power Plant resulted in some of the most radioactively contaminated habitats on earth. Despite evacuation of all human inhabitants from the most contaminated areas, animals and plants continue to thrive in these areas. This study examines the levels of contamination and genetic damage associated with radiocesium in catfish (Ictalurus punctatus) from the cooling pond and a control site. In general, catfish from the cooling pond exhibit greater genetic damage, and the amount of damage is related to the concentration of radiocesium in individual fish. Genetic damage is primarily in the form of DNA strand breaks, with few micronuclei being observed in contaminated fish. The possible roles that acclimation and adaption play in the response to high levels of radiation exposure are discussed.

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