Oil Spillage And Its Impact On The Edible Mangrove Periwinkle, <em>Tympanotonus fuscatus</em> Var Radula (L).

  • Renner K. O. Nigerian Institute for Oceanography and Marine Research, Victoria Island, Lagos
  • Don-Pedro K. N. University of Lagos, Akoka
  • Nubi O. A. Nigerian Institute for Oceanography and Marine Research, Victoria Island, Lagos

Abstract

Oil spills are a regular occurrence in the oil  industry in Nigeria, a process that results in the release of excess  hydrocarbons into the environment, negatively impacting plant and animal  species. Laboratory and field experiments were conducted on refined oil  impacted and fire ravaged mangrove ecosystem to determine the effect of oil  spillage on the edible periwinkle Tympanotus  fuscatus. The results showed that recolonisation occurred one year after  the pollution. Tympanotonus fuscatus was  observed in higher numbers than other organisms that attempted recolonisation.  Bioassays carried out to investigate the response of T. fuscatus to the refined oil product showed a 96hr Lc50 value of  104.68ml/L.