Metabolism of PCBs by the deepwater sculpin (Myoxocephalus thompsoni).

Published

Journal Article

Methylsulfonyl-PCBs (MeSO2-PCBs) are hydrophobic organic contaminants that bioaccumulate in the environment similar to their parent molecules, PCBs. Previously, MeSO2-PCBs have primarily been identified in tissues of birds, humans, and other mammals. However, evidence now supports formation of these metabolites in deepwater sculpin, Myoxocephalus thompsoni, a benthic forage fish predominant in the Great Lakes. The ability of deepwater sculpin to form MeSO2-PCBs is unprecedented for a freshwater fish species and presents a novel biochemical pathway for organochlorine metabolism. Additionally, this appears to be a unique PCB metabolic pathway resulting in a reduction of as much as 10% in the sculpin PCB burden, which is further transformed into another class of organic contaminants in the Great Lakes ecosystem.

Full Text

Duke Authors

Cited Authors

  • Stapleton, HM; Letcher, RJ; Baker, JE

Published Date

  • December 2001

Published In

Volume / Issue

  • 35 / 24

Start / End Page

  • 4747 - 4752

PubMed ID

  • 11775148

Pubmed Central ID

  • 11775148

Electronic International Standard Serial Number (EISSN)

  • 1520-5851

International Standard Serial Number (ISSN)

  • 0013-936X

Digital Object Identifier (DOI)

  • 10.1021/es015571l

Language

  • eng