alexa Longitudinal Exploitation of the Transversal Gradient of Oreochromis niloticus Gill System by Four Monogeneans Species at Melen Fish Station (Yaounde, Cameroon)
ISSN: 2150-3508

Fisheries and Aquaculture Journal
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Research Article

Longitudinal Exploitation of the Transversal Gradient of Oreochromis niloticus Gill System by Four Monogeneans Species at Melen Fish Station (Yaounde, Cameroon)

Tombi Jeannette*, Akoumba John Francis, Mieguim Ngninpogni Dominique and Bilong Bilong Charles Felix

Department of Animal Biology and Physiology, University of Yaounde I, Yaounde, Cameroon

Corresponding Author:
Tombi Jeannette
Faculty of Science, Department of Animal Biology and Physiology
University of Yaoundé I, PO-Box: 812, Yaoundé, Cameroon
E-mail: [email protected]

Received Date: January 20, 2016; Accepted Date: May 23, 2016; Published Date: May 30, 2016

Citation: Jeannette T, Francis AJ, Dominique MN, Felix BBC (2016) Longitudinal Exploitation of the Transversal Gradient of Oreochromis niloticus (Linné, 1758) Gill System by Four Monogenean Species at Melen Fish Station (Yaounde, Cameroon). Fish Aquac J 7:172. doi:10.4172/2150-3508.1000172

Copyright: © 2016 Jeannette T, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

From February 2012 to February 2013, 406 fish were caught in the Melen fish station, then fixed in 10% formalin and taken to the laboratory to be examined. Mounting of monogeneans carried out using binocular magnifying glass; the determination of the various species was further done using the optical microscope. The colonization of the four pairs of arches by C. thurstonae occurred in the anterio-posterior direction. The other three species showed non-specific model of occupation of the transversal gradient. These different patterns have undergone permanent modifications. The results obtained in this study could be explained based on the heterogeneity of the gill system, the ventilation of current flow, the model of gills colonization by the oncomiracidiums of the Monopisthocotylea. The low diversity values obtained within seasons indicate that this period is harmful for the parasites studied. The species C. halli has exploited the resource space better in all. The populating of arches II and III were the best organized.

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