TITLE:
Distribution patterns and relationship between elevation and the abundance of Aedes aegypti in Mojokerto city 2012
AUTHORS:
Zulfaidah Penata Gama, Nobukazu Nakagoshi, Madaniatul Islamiyah
KEYWORDS:
Aedes aegypti; Distribution Pattern; Elevation; Mojokerto
JOURNAL NAME:
Open Journal of Animal Sciences,
Vol.3 No.4A,
October
29,
2013
ABSTRACT:
Mosquitoes
are one of the insects that have an important role as vectors of disease
agents. The diseases transmitted by mosquitoes are still public health problems
in Indonesia especially in East Java Province, for example, Dengue Hemorrhagic
Fever (DHF). DHF is a very alarming disease because the occurrence of this epidemic
is no longer just confined to certain geographic locations. At present,
Mojokerto is a district in East Java region known as endemic for DHF in
Indonesia. The number of cases in this district tends to rise and expand distributed.
The spread pattern of dengue cases in this district is not certainly known. The
aim of this research is to determine the distribution pattern of mosquitoes and
its relationship between elevation and density of Aedes aegypti in the Mojokerto district that caused dengue virus
transmission. Sampling was conducted at two locations in the Mojokerto
district, in the urban and rural, namely Prajurit Kulon for urban and Dlanggu
for rural. We used survey for mosquito larvae by WHO standard and for mosquito
eggs by ovitrap. The coordinates of sampling locations are recorded using GPS
and then identification of mosquitoes is performed at the Laboratory of Ecology
and Animal Diversity, University of Brawijaya. Quantitative data were
analyzed to determine the abundance,
relative abundance, frequency, relative frequency and IVI (Importance
Value Index). Mosquito distribution patterns were analyzed with Morisita index.
The research findings indicated that there are five mosquitoes species consisted of Aedes aegypti, Aedes albopictus, Aedes
laniger, Culex bitaeniorchynchus and Culex quinquefasciatus. Aedes aegypti is the dominant species
in urban area while Culex
quinquefasciatus is the dominant species
in rural area. Morisita index showed that mosquito dispersal on patterns
in Mojokerto district is uniform. The elevation of the area and density of Aedes aegypti has a positive correlation.