Distribution and abundance of mosquito species in Otuoke, Ogbia Local
Government Area, Bayelsa State, Nigeria

Ezenwaka, C. O., Ailogie, T. E.

Keywords: Distribution, mosquito, species, abundance, Otuoke, Bayelsa.
Published in Volume 22
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Abstract:

The distribution and abundance of mosquito species in Otuoke community of
Ogbia Local Government Area, Bayelsa State, Nigeria was studied between
April and July 2021. Indoor mosquito collections were carried using the
Pyrethrum spraying method. Six (6) locations were sampled, consisting of
Federal University Otuoke (FUO) female hostel and five other streets mapped
out randomly within the community. The results of the study revealed 112
individual mosquitoes belonging to two genera; Anopheles and Culex. Culex
species (83.93%) was significantly (p<0.05) more abundant than Anopheles
(16.07%). All the Culex mosquitoes were identified as Culex pipiens (83.93%)
Two species of anopheles, Anopheles gambiae 16(14.28%) and Anopheles
funestus 2(1.76%) were identified morphologically. Nine (9) out of the 112
mosquitoes collected had slightly damaged genitals and were identified into
genera and species but could not be differentiated into sexes. The total number
of mosquitoes identified into sexes in the study was 103, out of which 13
(12.62%) were males and 90 (87.38%) were females. There was a significant
difference between the sexes (p<0.05). Development of efficient mosquitoes’
control strategy by the government and local communities is recommended.
Also, regular sanitation and proper waste disposal should be undertaken by the
residents.