Concentrations of Cadmium, Cobalt, Lead, Nickel, and Zinc in Blood and Fillets of Northern Hog Sucker (Hypentelium nigricans) from Streams Contaminated by Lead–Zinc Mining: Implications for Monitoring
| Autor: | Thomas W. May, William G. Brumbaugh, Christopher J. Schmitt |
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| Rok vydání: | 2009 |
| Předmět: |
Health
Toxicology and Mutagenesis chemistry.chemical_element Hypentelium Toxicology Mining Sucker Animals Ecotoxicology Fillet (mechanics) Blood Specimen Collection Cadmium biology Ecology Fishes Aquatic animal Cobalt General Medicine biology.organism_classification Pollution Zinc Lead chemistry Metals Environmental chemistry Calcium Water Pollutants Chemical Catostomidae Environmental Monitoring Blood sampling |
| Zdroj: | Archives of Environmental Contamination and Toxicology. 56:509-524 |
| ISSN: | 1432-0703 0090-4341 |
| Popis: | Lead (Pb) and other metals can accumulate in northern hog sucker (Hypentelium nigricans) and other suckers (Catostomidae), which are harvested in large numbers from Ozark streams by recreational fishers. Suckers are also important in the diets of piscivorous wildlife and fishes. Suckers from streams contaminated by historic Pb-zinc (Zn) mining in southeastern Missouri are presently identified in a consumption advisory because of Pb concentrations. We evaluated blood sampling as a potentially nonlethal alternative to fillet sampling for Pb and other metals in northern hog sucker. Scaled, skin-on, bone-in "fillet" and blood samples were obtained from northern hog suckers (n = 75) collected at nine sites representing a wide range of conditions relative to Pb-Zn mining in southeastern Missouri. All samples were analyzed for cadmium (Cd), cobalt (Co), Pb, nickel (Ni), and Zn. Fillets were also analyzed for calcium as an indicator of the amount of bone, skin, and mucus included in the samples. Pb, Cd, Co, and Ni concentrations were typically higher in blood than in fillets, but Zn concentrations were similar in both sample types. Concentrations of all metals except Zn were typically higher at sites located downstream from active and historic Pb-Zn mines and related facilities than at nonmining sites. Blood concentrations of Pb, Cd, and Co were highly correlated with corresponding fillet concentrations; log-log linear regressions between concentrations in the two sample types explained 94% of the variation for Pb, 73-83% of the variation for Co, and 61% of the variation for Cd. In contrast, relations for Ni and Zn explained |
| Databáze: | OpenAIRE |
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