Preferences help
enabled [disable] Abstract
Number of results
2018 | 98 | 78-88
Article title

Potential Ecological Risk Index and Metals Residue in Tropical Brackish Water Snail (Pachymelania byronensis Wood, 1828) of the Lower Niger River Basin, Nigeria

Title variants
Languages of publication
The potential ecological risk index (RI) was employed to evaluate water quality and sediment pollution of heavy metals in the fish Town Rivers, Nigeria. The propensity of the presence of the heavy metals residue in a common brackish water snail (Pachymelania byronensis) that serves as food for human was also examined. Fine-grained surficial sediments from natural depositional zones were collected using Ekman dredge, pooled together and analyzed for the present of heavy metals. The snail samples were randomly hand-picked from the edge of the Rivers or attached to the substrata from August, 2017 to January, 2018 depicting wet season (August - October) and dry season (November - January). A total of 144 P. byronensis (24 per station) were sampled for this investigation. The concentrations of the heavy metals concentration in the sediments and snail tissues were analyzed using graphite furnace absorption spectrometry. The order of occurrence of the metal in the snail is Zn > Cu > Fe > Pb > Cd and their levels remain within their permissible safe levels for human consumption as stipulated by the various regulatory bodies. The risk factor for the metals in the sediments revealed that the Rivers is moderately at risk, which may not pose serious environmental threat and health risks to the resident organisms, but may be magnify along the trophic level. Therefore, sensitization of the inhabitants becomes inevitable, since the level is at threshold, above which may be detrimental.
Physical description
  • Department of Biology, Federal University Otuoke, Bayelsa State, Nigeria
  • Department of Biology, Federal University Otuoke, Bayelsa State, Nigeria
  • [1] Adesehinwa, A.O., and Ogunmodede, B. K. (1995): Swine feeds and practical feed composition techniques. Paper Presented at National Agricultural Extension and Research Liaison Service. National pig production workshop, National Cereal Research Institute, Moor Plantation, Ibadan.
  • [2] ATSDR. (2005): Agency for toxic substances and disease registry. Clifton Road, Atlanta: Division of Toxicology.
  • [3] Bilandzic, N., Sedak, M., Dokic, M., Varenina, I., Kolanovic, B.S., Bozic, D., Brstilo, M. and Simic, B. (2014): Determination of zinc concentrations in foods of animal origin,212fish and shellfish from Croatia and assessment of their contribution to dietary intake. Journal of Food Composition and Analysis, 35, 61–66
  • [4] Canli, M. and Atli, G. (2003): The relationships between heavy metal (Cd, Cr, Cu, Fe, Pb and Zn) levels and the size of six Mediterranean fish species. Environment Pollution, 121: 129–136
  • [5] Chellaram, C., Anand, T.P., Praveen, M.M., Murugaboopathi, G., Sivakumar, R., Arvind, B. and Krithika, S. (2014): Self-life studies on an underutilized sea food from southeast coast of India. APCBEE Procedia, 8, 114–118.
  • [6] Coetzee, L., du Preez, H.H., Van Vuren, J.H. (2002). Metal concentrations in Clarias gariepinus and Labeo umbratus from the Olifants and Klein Olifants river, Mpumalanga, South Africa: zinc, copper, manganese, lead, chromium, nickel, aluminium and iron. Water SA 28: 433–448. doi: 10.4314/wsa.v28i4.4917
  • [7] Eaton, A.D. and Franson, M.A. (2005): Standard Methods for the Examination of Water and Waste water, American Public Health Association
  • [8] EC. (2001): Commission Regulation (EC) No. 466/2001 of 8 March 2001. Official Journal of European Communities 1.77/1
  • [9] EPA. (2012). Channel Processes: Bedload Transport. In Water: Science & Technology. Pp. 81
  • [10] Hakanson L. An ecological risk index for aquatic pollution control. A sedimentological approach. Water Res. 1980; 14: 975–1001. doi:10.1016/0043-1354(80)90143-8
  • [11] Javed, M and Usmani, N. (2011): Accumulation of heavy metals in fishes: a human health concern. Int J Environ Sci. 2: 659–670.
  • [12] Lagade, V.M., Taware, S.S. and Muley, D.V. (2015): Seasonal variation in the biochemical constituents, percentage edibility and condition index of the estuarine clam, Soletellina diphos (Linnaeus, 1771) (Mollusca: Bivalvia: Veneroida: Psammobiidae). International Journal of Zoological Research, 11(4), 127–139.
  • [13] Mason, S. L., J. Shi, A. E. Bekhit, and R. Gooneratne. (2014): Nutritional and toxicological studies of New Zealand Cookia sulcata. J. Food Composit. Anal. 36: 79–84.
  • [14] Miraglia, M., Marvin, G.A., Kleter, P., Battilani, C., Brera, E., Coni, F., Cubbada, L. Croci, B. De Santis, L. Filippi, R.W.A, Hughes, M.Y. Noordam, M. Pisante, G. Piva, A. Prandini, L. Toti, G.J. van der Born, A. (2000). Food and Chemical Toxicology 47, 1009-1021.
  • [15] Nussey, G., Van Vuren, J.H., Du Preez, H.H. (2000): Bioaccumulation of chromium, manganese, nickel and lead in the tissues of the moggel, Labeo umbratus (Cyprinidae), from Witbank Dam, Mpumalanga S. Africa. Water SA 26(2): 269–284
  • [16] Obasohan, E.E. and Eguavoen, O.I. (2008): Seasonal variations of bioaccumulation of heavy metals in a freshwater fish (Erpetoichthys calabaricus) from Ogba River, Benim City, Nigeria. African Journal of General Agriculture, 2008; 4: 153–163.
  • [17] Oguzie, F.A. (2003): Heavy metals in fish, water and effluents of lower Ikpoba River in Benim City, Nigeria. Pakistan Journal of Science and Industrial Research 46(3): 156–160.
  • [18] Peiru, K., Xian, C., Ranhao ,S. and Liding, C. (2018): The Synergic Characteristics of Surface Water Pollution and Sediment Pollution with Heavy Metals in the Haihe River Basin, Northern China, Water 10, 73; doi:10.3390/w10010073
  • [19] Ruttens, A., Blanpain, A.C., Temmerman, L.D. and Waegeneers, N. (2012): Arsenic speciation in food in Belgium Part 1: Fish, molluscs and crustaceans. Journal of Geochemical Exploration, 121, 55–61.
  • [20] Simpson, R. D. (1990): Investigation of biological factors of snails in relation to commercial snail farming and the marketing of snails in Australia as food. Project No. UNE9A. University of New England, Armidale. Austrialia
  • [21] Waalkes, M.P. (2000): Cadmium carcinogenesis in review. Journal of Inorganic Biochemistry 79(1): 241–244
  • [22] Zhang, C., Yu, Z.G., Zeng, G.M., Jiang, M., Yang, Z.Z., Cui, F., Zhu, M.Y., Shen, L.Q., Hu, L. (2014). Effects of sediment geochemical properties on heavy metal bioavailability. Environment International 73, 270–281.
Document Type
Publication order reference
YADDA identifier
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.