Mercury and trace elements in crayfish from northern california
| Autor: | Marissa L. Bauer, Anne M. Meckstroth, John J. Crayon, Darrin R. Bergen, R.L. Hothem |
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| Rok vydání: | 2007 |
| Předmět: |
Procambarus clarkii
biology Health Toxicology and Mutagenesis chemistry.chemical_element General Medicine Astacoidea Mercury Methylmercury Compounds Toxicology biology.organism_classification Crayfish Pollution Pacifastacus Mercury (element) Trace Elements chemistry.chemical_compound chemistry Environmental chemistry Ecotoxicology Animals Regression Analysis Methylmercury Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Bulletin of environmental contamination and toxicology. 79(6) |
| ISSN: | 0007-4861 |
| Popis: | 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 microg/g) exceeded concentrations reported in health advisories for consumption of fish and crayfish from these watersheds. |
| Databáze: | OpenAIRE |
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