title: Oviposition Habitat Selection of Dengue Vectors,Aedes aegyptiandAedes albopictusin Response to Fish Predator.
abstract: To understand the effects of fish predator's kairomones onAedesmosquitoes' oviposition, we established an experiment using gravidAedesfemales. Kairomones concentrations were established usingHampala macrolepidota.One individual fish was placed inside containers with varying water levels (1 L, 5 L, and 10 L of water). The fish were kept in the containers for 24 hours and were removed immediately at the start of each trial in order to have the kairomones remnants. Twenty gravid adult females ofAedes aegyptiandAedes albopictuswere allowed to lay eggs on oviposition site with various treatments: (1) control without any kairomones; (2) kairomone remnant in 1 L of water; (3) kairomone remnant in 5 L of water; and (4) kairomone remnant in 10 L of water. There are significant differences between the numbers of eggs laid by bothAedesspecies for each different treatment (F = 9.131, df = 16,p<0.001). However, fewer eggs were laid byAe. albopictuscompared toAe. aegyptiin the presence of kairomone remnants. This suggested thatAe. albopictusare significantly affected by the kairomones itself and have ability to detect the residual kairomone presence fromH. macrolepidota.
authors.affiliation: School of Biological Sciences, Universiti Sains Malaysia, 11800 USM, Pulau Pinang, Malaysia; Vector Control Research Unit, Universiti Sains Malaysia, 11800 USM, Pulau Pinang, Malaysia.
authors.forename: Wan Fatma
authors.initials: WF
authors.lastname: Zuharah
authors.affiliation: School of Biological Sciences, Universiti Sains Malaysia, 11800 USM, Pulau Pinang, Malaysia.
authors.forename: Nik
authors.initials: N
authors.lastname: Fadzly
authors.affiliation: School of Biological Sciences, Universiti Sains Malaysia, 11800 USM, Pulau Pinang, Malaysia.
authors.forename: Wilson Ong Kang
authors.initials: WO
authors.lastname: Wei
authors.affiliation: School of Biological Sciences, Universiti Sains Malaysia, 11800 USM, Pulau Pinang, Malaysia.
authors.forename: Zarul Hazrin
authors.initials: ZH
authors.lastname: Hashim
keywords: Aedes albopictus; Hampala macrolepidota; Kairomone; Mosquito; Predator