Mercury and Selenium in a Top-Predator Fish, Trichiurus lepturus (Linnaeus, 1758), from the Tropical Brazilian Coast, Rio de Janeiro
| Autor: | Olaf Malm, Tércia G. Seixas, Isabel Moreira, Helena A. Kehrig |
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| Rok vydání: | 2012 |
| Předmět: |
Geologic Sediments
Health Toxicology and Mutagenesis Zoology chemistry.chemical_element Toxicology Trichiurus lepturus Perciformes Selenium Cutlassfish Animals Ecotoxicology Apex predator biology Muscles Mercury General Medicine biology.organism_classification Pollution Mercury (element) Fishery Bays chemistry Bay Brazil Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Bulletin of Environmental Contamination and Toxicology. 89:434-438 |
| ISSN: | 1432-0800 0007-4861 |
| DOI: | 10.1007/s00128-012-0680-1 |
| Popis: | Muscular mercury and selenium were assessed in a voracious fish from three Brazilian coastal areas with different environmental conditions. Mercury was higher in specimens from Ilha Grande Bay (0.35 ± 0.17 μg g(-1)) than in cutlassfish from Guanabara Bay (0.30 ± 0.15 μg g(-1)) and Buzios coast (0.13 ± 0.08 μg g(-1)), respectively. No difference was found regarding selenium among these areas. Mercury was positively correlated with fish length and size intervals (sub-adult, small and large adult), suggesting that larger and older fish bioaccumulated more mercury. A large excess of molar selenium in relation to mercury was observed. |
| Databáze: | OpenAIRE |
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