AbstractSince 2008, several outbreaks of yellow fever and dengue occurred in Abidjan, the economic capital of Côte d'Ivoire. A better knowledge of the biology ofAedes aegyptipopulations, the main vector of yellow fever and dengue viruses, is necessary to tailor vector control strategies implemented in the city. This study was designed to determine some biological parameters, occurring during the life cycle of two morphological phenotypes ofAe. aegyptilarvae. Mosquitoes were sampled in a suburb of Abidjan (Treichville) using the WHO layer-traps technique. Biological parameters were studied in laboratory under standard conditions of temperature (27°C ± 2°C) and relative humidity (80% ± 10%). Our results indicated that the mean eggs laid by females from ‘brown larvae’ (BL) (85.95, 95% confidence interval (CI 95%) 78.87–93.02) was higher than those from ‘white larvae’ (WL) (64.40%, CI 95% 55.27–73.54). The gonotrophic cycle was 3 and 4 days in females from BL and WL, respectively. The overall yield of breeding mosquitoes from BL (63.88%, CI 95% 62.61–65.14) was higher compared with those of mosquitoes from WL (59.73%, CI 95% 58.35–61.12). The sex ratio (male/female) was 0.95 and 1.68 inAe. aegyptipopulations from BL and WL, respectively. Females from BL lived slightly longer than those from WL (t= −2.332;P= 0.021). This study shows thatAe. Aegyptipopulations from BL and WL present different biological parameters during their life cycle. This could have an implication on their ability to transmit human disease viruses such as dengue and yellow fever. Further molecular studies are needed to determine genetic divergence between theseAe. aegyptipopulations.
Comparison of the Energy Recovery Potential Using Life Cycle Assessment of Municipal Solid Waste of Abidjan (Côte d’Ivoire)
