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Mercury and trace elements in crayfish from northern California

Bulletin of Environmental Contamination and Toxicology

By:
, , , , and
DOI: 10.1007/s00128-007-9304-6

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Abstract

We collected two species of crayfish, Pacifastacus leniusculus and Procambarus clarkii, from Cache and Putah Creeks, California, and analyzed them for mercury and trace elements. Trace elements were higher in carcasses in 40 cases, higher in tails in 5 cases, and not different in 35 cases; no concentration exceeded levels considered harmful. Mercury concentrations were similar among sites, with no overall sex or species effect in tails. Mercury and methylmercury concentrations were higher in tails at all sites. Methylmercury concentrations in crayfish tails (0.156-0.256 ??g/g) exceeded concentrations reported in health advisories for consumption of fish and crayfish from these watersheds. ?? Springer Science+Business Media, LLC 2007.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Mercury and trace elements in crayfish from northern California
Series title:
Bulletin of Environmental Contamination and Toxicology
DOI:
10.1007/s00128-007-9304-6
Volume
79
Issue:
6
Year Published:
2007
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Bulletin of Environmental Contamination and Toxicology
First page:
628
Last page:
632
Number of Pages:
5