دورية أكاديمية
The legacy of artisanal gold mining and its impact on fish health from Tapajós Amazonian region: A multi-biomarker approach.
| العنوان: | The legacy of artisanal gold mining and its impact on fish health from Tapajós Amazonian region: A multi-biomarker approach. |
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| المؤلفون: | da Silva Montes C; Laboratory of Cellular Ultrastructure and Immunohistochemistry, Institute of Biological Sciences, Federal University of Pará (UFPA), Belém, Pará, Brazil. Electronic address: carolinesmontes@gmail.com., Ferreira MAP; Laboratory of Cellular Ultrastructure and Immunohistochemistry, Institute of Biological Sciences, Federal University of Pará (UFPA), Belém, Pará, Brazil., Giarrizzo T; Laboratory of Fisheries Biology - Aquatic Resource Management, Federal University of Pará (UFPA), Belém, Pará, Brazil., Amado LL; Laboratory of Ecotoxicology and Laboratory of Marine Environmental Monitoring Research (LAPMAR) Federal University of Pará (UFPA), Belém, Pará, Brazil., Rocha RM; Laboratory of Cellular Ultrastructure and Immunohistochemistry, Institute of Biological Sciences, Federal University of Pará (UFPA), Belém, Pará, Brazil. |
| المصدر: | Chemosphere [Chemosphere] 2022 Jan; Vol. 287 (Pt 3), pp. 132263. Date of Electronic Publication: 2021 Sep 16. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Science Ltd Country of Publication: England NLM ID: 0320657 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-1298 (Electronic) Linking ISSN: 00456535 NLM ISO Abbreviation: Chemosphere Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: Oxford : Elsevier Science Ltd Original Publication: Oxford, New York, : Pergamon Press. |
| مواضيع طبية MeSH: | Mercury*/analysis , Mercury*/toxicity , Water Pollutants, Chemical*/analysis , Water Pollutants, Chemical*/toxicity, Animals ; Biomarkers ; Environmental Monitoring ; Fishes ; Gold ; Mining ; Rivers |
| مستخلص: | Tapajós Region, is an area with intense historical artisanal and small-scale gold mining. Therefore, the core objective of this study was to evaluate the environmental status of different rivers located in this region, using biomarker endpoints in Serrasalmus rhombeus as a tool. Fish and sediment were collected from two rivers, Tropas and Crepori, affluent of Tapajós River, located inside a Federal Protection Area and in a Reference site. Mercury concentration in sediment and fish were traced, and biomarkers in gills and liver were analyzed. Results showed a clear difference between these two rivers compared to the Reference site. Fish tissues presented biomarker responses according to the site of collection. Catalase (CAT) activity was statistically higher in fish gills from Crepori, confirming the capacity of mercury interference with redox equilibrium. High levels of lipid peroxidation were also noted to contribute greatly in incidence of morphological changes in the liver and gills, suggesting that mercury bioaccumulation during continuous exposure promote biological responses in a cumulative manner, from molecules to tissues. This study also indicates adaptation in fish defense mechanisms given the conditions in the Tropas River, as well as a variation in biomarker responses to that of the Crepori river. In summary, Tapajós affluents presented high mercury levels in fish tissues leading to biomarker responses, demonstrating a hazardous signal of a long history of mercury pollution. (Copyright © 2021 Elsevier Ltd. All rights reserved.) |
| فهرسة مساهمة: | Keywords: Amazonian; Artisanal gold mining; Biomarker approach; Piranhas |
| المشرفين على المادة: | 0 (Biomarkers) 0 (Water Pollutants, Chemical) 7440-57-5 (Gold) FXS1BY2PGL (Mercury) |
| تواريخ الأحداث: | Date Created: 20211127 Date Completed: 20211130 Latest Revision: 20211130 |
| رمز التحديث: | 20240628 |
| DOI: | 10.1016/j.chemosphere.2021.132263 |
| PMID: | 34826937 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1879-1298 |
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| DOI: | 10.1016/j.chemosphere.2021.132263 |