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| Content Provider | Springer Nature Link |
|---|---|
| Author | Moura, Jailson Fulgencio Emin Lima, Renata Hacon, Sandra S. Vega, Claudia Maribel Campos, Reinaldo Calixto Sicilia, Salvatore |
| Copyright Year | 2012 |
| Abstract | Total mercury (Hg) was analyzed in muscle tissue of 27 accidentally captured Guiana dolphins (Sotalia guianensis) in order to evaluate Hg contamination levels present in the Amazon Continental Shelf, in Amapá state, North Brazil. The samples showed a mean concentration of 0.4 ± 0.16 μg/g wet weight (ww), ranging from 0.07 to 0.79 μg/g ww. As observed in several other cetacean species, Hg concentrations presented positive correlations to body length, related to the capacity to bioaccumulate this element throughout life. Hg concentrations were not significantly different between males (mean = 0.38 μg/g ww; n = 15) and females (mean = 0.42 μg/g ww; n = 12). Concentrations were low when compared to results of studies carried out with small cetaceans in the Northern Hemisphere, and with some previous studies in the south-eastern region of Brazil. In contrast with high Hg concentrations normally detected in river dolphin samples from Amazon River tributaries, our results suggest that the Amazon coast contains low levels of Hg in bioavailable form. |
| Starting Page | 412 |
| Ending Page | 418 |
| Page Count | 7 |
| File Format | |
| ISSN | 00074861 |
| Journal | Bulletin of Environmental Contamination and Toxicology |
| Volume Number | 89 |
| Issue Number | 2 |
| e-ISSN | 14320800 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2012-05-08 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Guiana dolphins Sotalia guianensis Amazon shelf Mercury Brazil Pollution Soil Science & Conservation Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution Environmental Chemistry Environmental Health Ecotoxicology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Health, Toxicology and Mutagenesis Pollution Medicine Toxicology |
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