The role of water ventilation and sediment ingestion on the uptake of hexachlorobenzene by gizzard shad (Dorosoma cepedianum)

Alan S. Kolok, Kory J. Groetsch, James T. Oris

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

The objective of this study was to determine whether sediment ingestion or water ventilation was the primary route for uptake of hexachlorobenzene (HCB) in the detritivorous fish, gizzard shad (Dorosoma cepedianum). Twenty nonligated and 30 esophagus-ligated fish were exposed to sediments spiked with 1 μg/g HCB for 29 d. The nonligated fish rolled the water as they fed, forcing the ligated fish to ventilate turbid water. Fish were collected 7, 14, 22, and 29 d after initiation of the experiment. Detectable levels of HCB were found in all ligated and nonligated fish, although the concentration of HCB in the ligated fish only ranged from 14 to 33% of that found in the nonligated fish. Thus, ingestion of contaminated sediments is a significant source of HCB for gizzard shad.

Original languageEnglish (US)
Pages (from-to)1760-1762
Number of pages3
JournalEnvironmental Toxicology and Chemistry
Volume15
Issue number10
DOIs
StatePublished - Oct 1996

Keywords

  • Hexachlorobenzene
  • Sediment ingestion
  • Water ventilation

ASJC Scopus subject areas

  • Environmental Chemistry
  • Health, Toxicology and Mutagenesis

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