Effects of Snail Density on Growth, Reproduction and Survival of Biomphalaria alexandrina Exposed to Schistosoma mansoni

Figure 3

Regression analyses of the mean number of eggs produced by each snail over the 10-week study period. Values were averaged for all snails in each treatment group. Regression analysis was performed using an exponential decay model. *Exposed treatment, mean number of eggs per snail = 208.7 × exp(−0.0797 × Density). **Unexposed treatment, mean number of eggs per snail = 231.03 × exp(−0.0524 × Density).