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A Study of the Morphological Structure of Chironomidae (Diptera) in a Tropical Urban Polluted Water System

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  • Ajeagah Gideon Aghaindum
  • Enah Dickson Achuo
  • Foto Menbohan Samuel

Abstract

In this study, theOlezoa stream in Yaounde was assessed todetermine the morphological structure of Chironomid genera that are present in the aquatic ecosystem. The biological analysis revealed a lowdiversity of larva andpupalexuviae. The tribe of Chironomini revealed 03 genera which are: Chironomus, Goeldichironomus and Nilothauma. The chironomidae developmental stages exhibit a variety of adaptations in polluted areas which could be: morphological, physiological and behavioral all of them occurring simultaneously within each developmental form and the different genera. Gelatinous egg masses which were found floating on the surface of water or attached to the aquatic vegetation of Obili Lake have an elongated- ribbon like shape. Each mass possesses an average of 50 ± 7 egg rows arranged linearly; with each egg row containing an average of 16.8 ± 1 eggs. Each egg has an oval shape with a characteristic brown colour. It measures between 4.32-4.96mm in length with an average length of 4.73±0.25mm in the samples assessed.

Suggested Citation

  • Ajeagah Gideon Aghaindum & Enah Dickson Achuo & Foto Menbohan Samuel, 2017. "A Study of the Morphological Structure of Chironomidae (Diptera) in a Tropical Urban Polluted Water System," International Journal of Sciences, Office ijSciences, vol. 6(06), pages 1-9, June.
    • Handle: RePEc:adm:journl:v:6:y:2017:i:6:p:1-9
    DOI: 10.18483/ijSci.1226
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    Cited by:

    1. Dzavi Jean & Kodji Ezechiel & Koji Ernest & Kalieu W. Appoline Isabelle & Dionkas Jaïrus & Foto Menbohan Samuel, 2020. "An Idea on Physico-Chemical Parameters of Waters in Two Streams of Savannah Agro-Pastoral Zone, North Region of Cameroon," International Journal of Research and Scientific Innovation, International Journal of Research and Scientific Innovation (IJRSI), vol. 7(4), pages 160-166, April.

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