Characterization of breeding site environment is a crucial step into the understanding of mosquito
biology and the dynamics of the transmitted diseases. In Cape Verde a single study addressed this issue,
however more than 30 years has passed making it obsolete. In the present study we characterized
mosquito breeding sites with emphasis on two major vectors. During mosquito sampling, measurements
of physicochemical parameters of standing water were conducted. Aquatic fauna and flora were also
characterized. We found a high species richness in the study area. Mosquitoes reproduction was
dependent of standing water created by human activities. We did not detect differences between water
collections used by mosquitoes to breed when compared to those unused. Our results suggest that
mosquito biological control, by the use of freshwater fish, is somewhat effective. Moreover, our results
highlight the breeding site management as an important vector control strategy in irrigated areas in Cape
Verde.