**5. Conclusion**

The study of the influence of physicochemical parameters on the spatial distribution of intermediate snail hosts in human schistosomes in the Senegal River delta provided insights on the diversity of snail and their density and, secondly, the role of these parameters in the distribution of snails. The presence of snail intermediate hosts of human schistosomes would be conditioned by the temperature, oxygen, and pH with which they are positively correlated. An increase in salt (phosphates, nitrates, and salinity), conductivity, and velocity would lead to a lower density of snails.
