Mercury in muscle and brain of catfish from the Madeira river, Amazon, Brazil. Bastos, W., R., Dórea, J., G., Bernardi, J., V., E., Lauthartte, L., C., Mussy, M., H., Hauser, M., Dória, C., R., d., C., & Malm, O. Ecotoxicology and Environmental Safety, 118(August):90-97, Elsevier, 2015. ![Mercury in muscle and brain of catfish from the Madeira river, Amazon, Brazil [link]](https://bibbase.org/img/filetypes/link.svg "link")
Website abstract bibtex The central nervous system is a critical target for Hg toxicity in all living organisms. Total Hg (THg) was determined in brain and muscle samples of 165 specimens of eight species of catfish (Brachyplatystoma filamentosum, Brachyplatystoma platynemum; Brachyplatystoma rousseauxii; Brachyplatystoma vaillantii; Phractocephalus hemiliopterus; Pseudoplatystoma punctifer; Pseudoplatystoma tigrinum; Zungaro zungaro) from the Madeira River, Brazilian Amazon. Despite the narrow range of Fishbase trophic level (4.2-4.6) the median THg concentrations ranged from 0.39 to 1.99. mg/kg and from 0.03 to 0.29. mg/kg respectively in muscle and brain from the studied species. Overall, the median concentration for all samples analyzed was 0.93. mg/kg and 0.16. mg/kg respectively in muscle and brain; most samples (76%) showed muscle Hg concentrations >0.5. mg/kg. There were statistically significant THg differences between sex (female>males). The correlation between THg concentrations in muscle and brain was statistically significant (r=0.9170; p<0.0001). In the studied specimens, fish total length was significantly correlated with muscle (r=0.3163; p=0.0001) and brain (r=0.3039; p=0.0003) THg; however, fish age was negatively and significantly correlated (r=-0.2991; p=0.0012) with THg in muscle but not with THg in brain (r=-0.0190; p=0.8492). Amazonian catfish accumulate high levels of Hg in muscle and brain; however, brain-THg concentrations can be predicted from muscle-THg. Muscle-Hg in catfish can be a tool to detect brain-Hg concentrations associated with environmental Hg.
@article{
title = {Mercury in muscle and brain of catfish from the Madeira river, Amazon, Brazil},
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year = {2015},
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created = {2017-10-04T19:44:33.767Z},
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abstract = {The central nervous system is a critical target for Hg toxicity in all living organisms. Total Hg (THg) was determined in brain and muscle samples of 165 specimens of eight species of catfish (Brachyplatystoma filamentosum, Brachyplatystoma platynemum; Brachyplatystoma rousseauxii; Brachyplatystoma vaillantii; Phractocephalus hemiliopterus; Pseudoplatystoma punctifer; Pseudoplatystoma tigrinum; Zungaro zungaro) from the Madeira River, Brazilian Amazon. Despite the narrow range of Fishbase trophic level (4.2-4.6) the median THg concentrations ranged from 0.39 to 1.99. mg/kg and from 0.03 to 0.29. mg/kg respectively in muscle and brain from the studied species. Overall, the median concentration for all samples analyzed was 0.93. mg/kg and 0.16. mg/kg respectively in muscle and brain; most samples (76%) showed muscle Hg concentrations >0.5. mg/kg. There were statistically significant THg differences between sex (female>males). The correlation between THg concentrations in muscle and brain was statistically significant (r=0.9170; p<0.0001). In the studied specimens, fish total length was significantly correlated with muscle (r=0.3163; p=0.0001) and brain (r=0.3039; p=0.0003) THg; however, fish age was negatively and significantly correlated (r=-0.2991; p=0.0012) with THg in muscle but not with THg in brain (r=-0.0190; p=0.8492). Amazonian catfish accumulate high levels of Hg in muscle and brain; however, brain-THg concentrations can be predicted from muscle-THg. Muscle-Hg in catfish can be a tool to detect brain-Hg concentrations associated with environmental Hg.},
bibtype = {article},
author = {Bastos, Wanderley R. and Dórea, José G. and Bernardi, José Vicente E. and Lauthartte, Leidiane C. and Mussy, Marilia H. and Hauser, Marília and Dória, Carolina Rodrigues da C. and Malm, Olaf},
journal = {Ecotoxicology and Environmental Safety},
number = {August}
}
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Total Hg (THg) was determined in brain and muscle samples of 165 specimens of eight species of catfish (Brachyplatystoma filamentosum, Brachyplatystoma platynemum; Brachyplatystoma rousseauxii; Brachyplatystoma vaillantii; Phractocephalus hemiliopterus; Pseudoplatystoma punctifer; Pseudoplatystoma tigrinum; Zungaro zungaro) from the Madeira River, Brazilian Amazon. Despite the narrow range of Fishbase trophic level (4.2-4.6) the median THg concentrations ranged from 0.39 to 1.99. mg/kg and from 0.03 to 0.29. mg/kg respectively in muscle and brain from the studied species. Overall, the median concentration for all samples analyzed was 0.93. mg/kg and 0.16. mg/kg respectively in muscle and brain; most samples (76%) showed muscle Hg concentrations >0.5. mg/kg. There were statistically significant THg differences between sex (female>males). The correlation between THg concentrations in muscle and brain was statistically significant (r=0.9170; p<0.0001). In the studied specimens, fish total length was significantly correlated with muscle (r=0.3163; p=0.0001) and brain (r=0.3039; p=0.0003) THg; however, fish age was negatively and significantly correlated (r=-0.2991; p=0.0012) with THg in muscle but not with THg in brain (r=-0.0190; p=0.8492). Amazonian catfish accumulate high levels of Hg in muscle and brain; however, brain-THg concentrations can be predicted from muscle-THg. 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