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Vol.4 , No. 6, Publication Date: Sep. 26, 2017, Page: 120-125
 and <i>S. galileaus</i> (25) were collected from the study area. Dissected and pulverized fish organ samples were acid-digested in Teflon tubes for analyses using the Inductively Coupled Plasma Mass Spectrometer (ICP-MS). The mean Ni in the liver, gut and fins of both fish exceeded the World Health Organization (WHO) limit guideline (0.07ppm). All the mean Se concentration in the organs of the two fish were all above the WHO limit guideline of 0.04ppm. With the exception of the muscle (0.01ppm) in <i>S. galilaeus</i>, all the other mean V concentration in the organs of the two fish were higher than the limit guideline of 0.02ppm while there is no current value for Mn and Co. The study shows that organs of <i>S. galilaeus</i> and <i>S. melanotheron</i> had V, Ni and Se above the World Health Organization’s limit guidelines thereby making the fish unfit for human consumption as long as the effluents discharged into the stream remain untreated. Continuous biomonitoring of the aquatic ecosystem for heavy metal pollution is recommended.&picture=http://www.aascit.org/aascit/decorators/img/journal/892.jpg)
| [1] | Emmanuel Teryila Tyokumbur, Department of Zoology, University of Ibadan, Ibadan, Nigeria. |
| [2] | Samuel Bem Umma, Department of Fisheries and Aquaculture, Federal University, Wukari, Nigeria. |
An appraisal was carried out on the heavy metals in the fish Sarotherodon melanotheron and Sarotherodon galilaeus from Alaro Stream in Ibadan. The study was carried out because fish is a major source of affordable protein for the ever growing global human population. The concentration of heavy metals in the aquatic ecosystem as a result of human activities at any given time portend a health risk for consumers of fish and its products. A total of fifty fish comprising S. melanotheron (25) and S. galileaus (25) were collected from the study area. Dissected and pulverized fish organ samples were acid-digested in Teflon tubes for analyses using the Inductively Coupled Plasma Mass Spectrometer (ICP-MS). The mean Ni in the liver, gut and fins of both fish exceeded the World Health Organization (WHO) limit guideline (0.07ppm). All the mean Se concentration in the organs of the two fish were all above the WHO limit guideline of 0.04ppm. With the exception of the muscle (0.01ppm) in S. galilaeus, all the other mean V concentration in the organs of the two fish were higher than the limit guideline of 0.02ppm while there is no current value for Mn and Co. The study shows that organs of S. galilaeus and S. melanotheron had V, Ni and Se above the World Health Organization’s limit guidelines thereby making the fish unfit for human consumption as long as the effluents discharged into the stream remain untreated. Continuous biomonitoring of the aquatic ecosystem for heavy metal pollution is recommended.
Keywords
Heavy Metals, Fish, Sarotherodon galilaeus, Sarotherodon melanotheron, Pollution, Ibadan
Reference
| [01] | Adeosun, F. I., Akinyemi, A. A., Idowu, A. A., Taiwo, I. O., Omoike, A., and Ayorinde, B. J. O. (2015). The effects of heavy metals concentration on some commercial fish in Ogun River, Opeji, Ogun State, Nigeria. African Journal of Environmental Science and Technology 9 (4), 365-370. |
| [02] | Adnano, D. C. 1986. Trace metals in the terrestrial environment. New York: Springer Verlag. |
| [03] | ASTDR. 2015. Nickel: Public Health Statement. Agency for Toxic Substances and Disease Registry, Division of Toxicology. Atlanta, Georgia. 10pp. |
| [04] | Beijer, K., and Jernelov, A. 1986. Sources, transport and transformation of metals in the environment. In L. Friberg, G. F. Nordberg, and V. B. Vouk (Eds.), Handbook on the toxicology of metals. Amsterdam: Elseveir. pp: 68-84 |
| [05] | Bosch, A. C., O'Neill, B., Sigge, G. O., Kerwath, S. E., and Hoffman, L. C. 2016. Heavy metals in marine fish meat and consumer health: a review. Journal of the Science of Food and Agriculture, 96 (1), 32-48. |
| [06] | Cui, L., Ge, J., Zhu, Y., Yang, Y., and Wang, J. 2015. Concentrations, bioaccumulation, and human health risk assessment of organochlorine pesticides and heavy metals in edible fish from Wuhan, China. Environmental Science and Pollution Research 22 (20), 15866-15879. |
| [07] | EFSA. 2015. Scientific opinion on the risks to public health related to the presence of nickel in food and drinking water. EFSA Journal. 13 (2): 4002. European Food Safety Authority (EFSA) Panel on Contaminants in the Food Chain (CONTAM). 202pp. |
| [08] | Eroglu, A., Dogan, Z., Kanak, E. G., Atli, G., and Canli, M. 2015. Effects of heavy metals (Cd, Cu, Cr, Pb, Zn) on fish glutathione metabolism. Environmental Science and Pollution Research, 22 (5), 3229-3237. |
| [09] | Forstner, U., and Wittmann, G. T. W, 1983. Metal pollution in the aquatic environment. Berlin, Springer-Verlag., pp: 30-61. |
| [10] | Frisbie, S. H., Mitchell, E. J. and Sarka, B. 2015. Urgent need to re-evaluate the latest World Health Organization guidelines for toxic inorganic substances in drinking water. Environmental Health 2015, 14: 63 doi: 10.1186/s12940-015-0050-7 |
| [11] | Froese, R. and Pauly, D. 2015. FishBase. World Wide Web electronic publication. www.fishbase.org. |
| [12] | Ikem A., Egiebor N. O., Nyavor K., 2003, Trace elements in water, fish and sediment from Tuskegee Lake, Southeastern USA. Water, Air and Soil Pollution 149: 51-75 |
| [13] | Kwon, T. T., and Lee, C. W. 2001. Ecological risk assessment of sediment in wastewater discharging area by means of metal speciation. Microchemical Journal, 70, 255-264 |
| [14] | Monro, J. L. 2011. Assessment of exploited stock of tropical fishes: an overview. In: Villy Christensen and Jay Maclean (Eds.) Ecosystem Approaches to Fisheries: A Global Perspective. Pages 171–188. Cambridge University Press. |
| [15] | Nagabhushanam R, Kodarkar, M. S and Sarojini, R. 1999. Textbook of Animal Physiology. 2nd Edition. IBH Publishing Co. PVT. Ltd. India. |
| [16] | Moses B. S. 1992. Introduction to Tropical Fisheries. Ibadan University Press; 1992. |
| [17] | Nagl, S., Tichy, Herbert, M., Werner, E., Samonte, I., McAndrew, E., Brendan, and J. and Klein, J. 2001. Classification and Phylogenetic Relationships of African Tilapiine Fishes Inferred from Mitochondrial DNA Sequences. Molecular Phylogenetics and Evolution 20 (3): 361–374. |
| [18] | Nayaka, B. M. S., Ramakrishna, S. and Delvi, J. M. R. 2009. Impact of heavy metals on water, fish (Cyprinus carpio) and sediments from a water tank at Tumkur, India. International Journal of Oceanography and Hydrobiology. Vol. XXXVIII, No. 2 17-28. |
| [19] | Raja, P., Veerasingam, S., Suresh, G., Marichamy, G. and Venkatachalapathy, R. (2009). Heavy Metals Concentration in Four Commercially Valuable Marine Edible Fish Species from Parangipettai Coast, South East Coast of India. International Journal of Animal and Veterinary Advances 1 (1): 10-14. |
| [20] | Ravera R. C., Beone G. M., Dantas M., Lodigiani P., 2003, Trace element concentrations in freshwater mussels and macrophytes as related to those in their environment. Journal of Limnology 62 (1): 61-70. |
| [21] | Tyokumbur, E. T. 2014. Heavy metal concentration in the fish Channa obscura from Alaro Stream in Ibadan, Nigeria. International Journal of Ecological Science and Environmental Engineering. Vol. 1, No. 2, pp. 18-21. |
| [22] | Tyokumbur, E. T and Okorie, T. G (2010). Bioconcentration of trace metals in the tissues of two leafy vegetables widely consumed in South West Nigeria. Biological Trace Element Research. Vol. 140, No. 2, 215-224. |
| [23] | World Health Organization. 2011. Selenium in Drinking Water. http://www.who.int/water_sanitation_health/dwq/chemicals/selenium.pdf |
