Modelling the Response of Catfish to Diesel and Water: The Probit Analysis Approach
- Country : Nigeria
- Subject : Mathematics
This study investigated the histopathology of Clariasgariepinus after exposure to sublethal concentrations of water soluble fractions of diesel for a period of 30 days. The toxicological evaluations of water soluble fraction of diesel were carried out against juvenile stages of the African cat fish (Clariasgariepinus). On the basis of 96hr ED50 values, water soluble fraction of diesel was more toxic to the juvenile of Clariasgariepinus than the 24hr ED50, 48hr ED50 and 72hr ED50 values. The computed 96hr values were 8.58 ml/l, while the computed 24hr, 48hr and 72hr values were 2.45ml/l, 3.46ml/l and 5.67ml/l respectively. For 24hr (Figure 1), 48hr (fig 2), 72hr (fig3) and 96hr (fig 4). The graphs plotted indicates that the higher the concentration the higher the mortality experienced by the catfish (Clariasgariepinus). The chi-square results revealed that the Probit model adequately fit the data.