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Mercury in freshwater, estuarine, and marine fishes from Southern Brazil and its ecological implication
- Source :
- Environmental Monitoring and Assessment. 159:35-42
- Publication Year :
- 2008
- Publisher :
- Springer Science and Business Media LLC, 2008.
-
Abstract
- In this study, we measured the mercury concentration in 27 different fish species with high commercial value. Samples were taken from a region characterized by the diversity of aquatic environments. Mercury concentration in marine fish species varied from 30.4 to 216 ng g(-1), while in estuarine species, it varied from 12.4 to 60.3 ng g(-1). Compared to mercury concentration in marine species, none of the specimens from estuarine environment has reached a mercury concentration of 100 ng g(-1). However, mercury concentrations in species from the freshwater Patos lagoon are remarkably higher (15.3 to 462 ng g(-1)) than those from the estuarine or marine region. Even though mercury concentrations in these fish species did not exceed the maximum level (500 ng g(-1)) allowed by WHO for human consumption, they represent the main food source for sea birds and mammals coming from South Pole during their migration period.
- Subjects :
- MERCURE
Food Chain
chemistry.chemical_element
Fresh Water
Management, Monitoring, Policy and Law
Animals
Ecotoxicology
Seawater
Muscle, Skeletal
Water pollution
General Environmental Science
geography
geography.geographical_feature_category
Ecology
Aquatic ecosystem
Fishes
Trace element
Estuary
Aquatic animal
Mercury
General Medicine
Pollution
Mercury (element)
chemistry
Environmental science
Brazil
Water Pollutants, Chemical
Environmental Monitoring
Subjects
Details
- ISSN :
- 15732959 and 01676369
- Volume :
- 159
- Database :
- OpenAIRE
- Journal :
- Environmental Monitoring and Assessment
- Accession number :
- edsair.doi.dedup.....f2e5215df7c5cf5ea485e6423662adb0