Guiana Dolphins (Sotalia guianensis, Van Benédén 1864) as Indicators of the Bioaccumulation of Total Mercury along the Coast of Rio de Janeiro State, Southeastern Brazil

Total mercury (Hg) was determined in muscle tissue of 20 Guiana dolphins stranded along the coast of Rio de Janeiro state, Brazil, with a mean of 1.07 μg/g wet weight. Mercury concentrations were positively related to body length, possibly related to the capacity of the dolphins to bioaccumulate thi...

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Published in:Bulletin of environmental contamination and toxicology 2012, Vol.88 (1), p.54-59
Main Authors: de Moura, Jailson Fulgencio, Hacon, Sandra de Souza, Vega, Claudia Maribel, Hauser-Davis, Rachel Ann, de Campos, Reinaldo Calixto, Siciliano, Salvatore
Format: Article
Language:English
Subjects:
Animals
Aquatic mammals
Aquatic Pollution
Bioaccumulation
Brazil
Coastal environments
Dolphins
Dolphins & porpoises
Dolphins - metabolism
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Environmental Monitoring - methods
Female
Females
Freshwater
Male
Males
Marine
Mercury
Mercury - metabolism
Muscles
Muscles - metabolism
Pollution
Rio de Janeiro
Soil Science & Conservation
Waste Water Technology
Water Management
Water Pollutants, Chemical - metabolism
Water Pollution Control
Water Pollution, Chemical - statistics & numerical data
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description Total mercury (Hg) was determined in muscle tissue of 20 Guiana dolphins stranded along the coast of Rio de Janeiro state, Brazil, with a mean of 1.07 μg/g wet weight. Mercury concentrations were positively related to body length, possibly related to the capacity of the dolphins to bioaccumulate this element throughout life. The Hg concentrations were not significantly different between males and females, although females (1.08 μg/g) showed slightly higher levels than males (1.04 μg/g). Concentrations were low when compared to results of studies carried out with small cetaceans in the Northern Hemisphere, and with previous studies in the Southeastern Brazil.
doi_str_mv 10.1007/s00128-011-0448-z
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subjects Animals
Aquatic mammals
Aquatic Pollution
Bioaccumulation
Brazil
Coastal environments
Dolphins
Dolphins & porpoises
Dolphins - metabolism
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Environmental Monitoring - methods
Female
Females
Freshwater
Male
Males
Marine
Mercury
Mercury - metabolism
Muscles
Muscles - metabolism
Pollution
Rio de Janeiro
Soil Science & Conservation
Waste Water Technology
Water Management
Water Pollutants, Chemical - metabolism
Water Pollution Control
Water Pollution, Chemical - statistics & numerical data
title Guiana Dolphins (Sotalia guianensis, Van Benédén 1864) as Indicators of the Bioaccumulation of Total Mercury along the Coast of Rio de Janeiro State, Southeastern Brazil
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