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Cadmium accumulation in tissues of Sarotherodon melanotheron (Rüppel, 1852) from the Aby Lagoon system in Côte d'Ivoire.

Cyrille YD, Victor K, Sanogo TA, Boukary S, Joseph W - Int J Environ Res Public Health (2012)

Bottom Line: The organisms were grouped into two composite samples (juvenile and adult) of five individuals.Fish muscle appeared to have a significantly higher tendency to accumulate cadmium (1.19-5.18 µg/g dw) while gills and livers had minimum concentrations (0.07-1.32 and 0.12-1.25 µg/g dw).This study has revealed that the concentrations of Cd in Sarotherodon melanotheron muscle tissue were above the maximum acceptable concentrations for human consumption, thus precautions need to be taken in order to prevent future contamination.

View Article: PubMed Central - PubMed

Affiliation: Laboratoire des Sciences de l'Environnement (LSE), Université d'Abobo-Adjamé, 02 BP 801 Abidjan 02, Côte d'Ivoire. dopearmel@yahoo.fr

ABSTRACT
This study assessed the concentrations of cadmium in the gills, livers and muscles of a commercially important tilapia fish (Sarotherodon melanotheron) from Aby Lagoon in Adiaké, Côte d'Ivoire, between January and December, 2010. The organisms were grouped into two composite samples (juvenile and adult) of five individuals. Levels of cadmium were determined in tissues using Perkin-Elmer (AAnalyst 200) Atomic Absorption Spectrophotometry (AAS) after a digestion method. Fish muscle appeared to have a significantly higher tendency to accumulate cadmium (1.19-5.18 µg/g dw) while gills and livers had minimum concentrations (0.07-1.32 and 0.12-1.25 µg/g dw). This study has revealed that the concentrations of Cd in Sarotherodon melanotheron muscle tissue were above the maximum acceptable concentrations for human consumption, thus precautions need to be taken in order to prevent future contamination.

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Seasonal variation of cadmium concentrations in gill tissues of tilapia (Sarotherodon melanotheron).
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ijerph-09-00821-f004: Seasonal variation of cadmium concentrations in gill tissues of tilapia (Sarotherodon melanotheron).

Mentions: The comparison between juvenile and adult fish showed that cadmium concentrations in tissues were not significantly different (p value <0.05) during the three studied seasons (Figure 2, Figure 3 and Figure 4). The highest cadmium concentrations were found in muscles of juvenile fish (3.95 ± 1.87, 4.28 ± 3.64, 5.18 ± 2.09 µg/g dw, respectively dry; rainy and flood season). The highest cadmium concentrations in livers (1.27 ± 0.71, 0.99 ± 0.38 µg/g dw, respectively, for juvenile and adult fish) were found during the rainy season, while the highest cadmium concentrations in gills (1.16 ± 0.93, 1.32 ± 0.30 µg/g dw, respectively, in juvenile and adult fish) were found during the dry season. The flood season was characterized by the lowest liver cadmium concentration (0.25 ± 0.11 µg/g dw to 0.20 ± 0.03 µg/g dw). Consequently, the fish tissue contamination by cadmium varied with the season. During the dry season the ranking of cadmium contamination was muscles > gills > livers. During the rainy season the ranking is muscles > livers > gills.


Cadmium accumulation in tissues of Sarotherodon melanotheron (Rüppel, 1852) from the Aby Lagoon system in Côte d'Ivoire.

Cyrille YD, Victor K, Sanogo TA, Boukary S, Joseph W - Int J Environ Res Public Health (2012)

Seasonal variation of cadmium concentrations in gill tissues of tilapia (Sarotherodon melanotheron).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3367280&req=5

ijerph-09-00821-f004: Seasonal variation of cadmium concentrations in gill tissues of tilapia (Sarotherodon melanotheron).
Mentions: The comparison between juvenile and adult fish showed that cadmium concentrations in tissues were not significantly different (p value <0.05) during the three studied seasons (Figure 2, Figure 3 and Figure 4). The highest cadmium concentrations were found in muscles of juvenile fish (3.95 ± 1.87, 4.28 ± 3.64, 5.18 ± 2.09 µg/g dw, respectively dry; rainy and flood season). The highest cadmium concentrations in livers (1.27 ± 0.71, 0.99 ± 0.38 µg/g dw, respectively, for juvenile and adult fish) were found during the rainy season, while the highest cadmium concentrations in gills (1.16 ± 0.93, 1.32 ± 0.30 µg/g dw, respectively, in juvenile and adult fish) were found during the dry season. The flood season was characterized by the lowest liver cadmium concentration (0.25 ± 0.11 µg/g dw to 0.20 ± 0.03 µg/g dw). Consequently, the fish tissue contamination by cadmium varied with the season. During the dry season the ranking of cadmium contamination was muscles > gills > livers. During the rainy season the ranking is muscles > livers > gills.

Bottom Line: The organisms were grouped into two composite samples (juvenile and adult) of five individuals.Fish muscle appeared to have a significantly higher tendency to accumulate cadmium (1.19-5.18 µg/g dw) while gills and livers had minimum concentrations (0.07-1.32 and 0.12-1.25 µg/g dw).This study has revealed that the concentrations of Cd in Sarotherodon melanotheron muscle tissue were above the maximum acceptable concentrations for human consumption, thus precautions need to be taken in order to prevent future contamination.

View Article: PubMed Central - PubMed

Affiliation: Laboratoire des Sciences de l'Environnement (LSE), Université d'Abobo-Adjamé, 02 BP 801 Abidjan 02, Côte d'Ivoire. dopearmel@yahoo.fr

ABSTRACT
This study assessed the concentrations of cadmium in the gills, livers and muscles of a commercially important tilapia fish (Sarotherodon melanotheron) from Aby Lagoon in Adiaké, Côte d'Ivoire, between January and December, 2010. The organisms were grouped into two composite samples (juvenile and adult) of five individuals. Levels of cadmium were determined in tissues using Perkin-Elmer (AAnalyst 200) Atomic Absorption Spectrophotometry (AAS) after a digestion method. Fish muscle appeared to have a significantly higher tendency to accumulate cadmium (1.19-5.18 µg/g dw) while gills and livers had minimum concentrations (0.07-1.32 and 0.12-1.25 µg/g dw). This study has revealed that the concentrations of Cd in Sarotherodon melanotheron muscle tissue were above the maximum acceptable concentrations for human consumption, thus precautions need to be taken in order to prevent future contamination.

Show MeSH