Diversity of Gill Cichlidogyrus spp. (Monopisthocotylean) Infecting Coptodon zillii (Gervais, 1848) from Lake Naivasha, Kenya

Monopisthocotyleans of the genus Cichlidogyrus are ectoparasites which infest on skin, fins and gills of most teleosts in both capture fisheries and aquaculture. These parasites are often unnoticed, yet they cause damages to the organs they affect thereby increasing susceptibility of the fish to sec...

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Main Author: Nehemiah Mogoi Rindoria
Format: Article
Language:English
Published: Erbil Polytechnic University 2024-10-01
Series:Polytechnic
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Online Access:https://polytechnic-journal.epu.edu.iq/home/vol14/iss2/5
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author Nehemiah Mogoi Rindoria
author_facet Nehemiah Mogoi Rindoria
author_sort Nehemiah Mogoi Rindoria
collection DOAJ
description Monopisthocotyleans of the genus Cichlidogyrus are ectoparasites which infest on skin, fins and gills of most teleosts in both capture fisheries and aquaculture. These parasites are often unnoticed, yet they cause damages to the organs they affect thereby increasing susceptibility of the fish to secondary infections. A total of fifty specimens of the introduced Redbelly tilapia Coptodon zillii (Gervais, 1848) were collected between November 2014 and April 2015 from Lake Naivasha, Kenya, and studied with the aim of collecting and identifying the gill monopisthocotyleans. Standard methods of parasitological examination were used in the identification of gill monopisthocotyla species. The collected monogeneans were preserved in 4% formalin for morphometric analysis. Seven Cichlidogyrus species were identified from the gills based on morphometric features of the opisthaptor and copulatory organs using identification keys. These include: Cichlidogyrus sclerosus Paperna & Thurston, 1969; C. tilapiae Paperna, 1960; Cichlidogyrus digitatus Dossou, 1982; Cichlidogyrus aegypticus Ergens, 1981; Cichlidogyrus vexus Pariselle & Euzet, 1995; Cichlidogyrus arthracanthus Paperna, 1960, and Cichlidogyrus yanni Pariselle & Euzet, 1996. The C. digitatus was the most dominant with a prevalence of 42% among the other monopisthocotyleans on C. zillii in the lake. These monopisthocotyleans form the first biogeographical record of their occurrence on C. zillii in Lake Naivasha, Kenya.
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spelling doaj-art-4fd57a99ca134b3a982a346d941be86a2025-01-28T17:50:55ZengErbil Polytechnic UniversityPolytechnic2707-77992024-10-011424858https://doi.org/10.59341/2707-7799.1840Diversity of Gill Cichlidogyrus spp. (Monopisthocotylean) Infecting Coptodon zillii (Gervais, 1848) from Lake Naivasha, KenyaNehemiah Mogoi Rindoria0Department of Biological Sciences, Schook of Pure and Applied Sciences, Kisii University, P. O Box 408-40200, Kisii, Kenya Department of Biological Sciences, Faculty of Science, Egerton University, P. O Box 536-20115, Egerton, KenyaMonopisthocotyleans of the genus Cichlidogyrus are ectoparasites which infest on skin, fins and gills of most teleosts in both capture fisheries and aquaculture. These parasites are often unnoticed, yet they cause damages to the organs they affect thereby increasing susceptibility of the fish to secondary infections. A total of fifty specimens of the introduced Redbelly tilapia Coptodon zillii (Gervais, 1848) were collected between November 2014 and April 2015 from Lake Naivasha, Kenya, and studied with the aim of collecting and identifying the gill monopisthocotyleans. Standard methods of parasitological examination were used in the identification of gill monopisthocotyla species. The collected monogeneans were preserved in 4% formalin for morphometric analysis. Seven Cichlidogyrus species were identified from the gills based on morphometric features of the opisthaptor and copulatory organs using identification keys. These include: Cichlidogyrus sclerosus Paperna & Thurston, 1969; C. tilapiae Paperna, 1960; Cichlidogyrus digitatus Dossou, 1982; Cichlidogyrus aegypticus Ergens, 1981; Cichlidogyrus vexus Pariselle & Euzet, 1995; Cichlidogyrus arthracanthus Paperna, 1960, and Cichlidogyrus yanni Pariselle & Euzet, 1996. The C. digitatus was the most dominant with a prevalence of 42% among the other monopisthocotyleans on C. zillii in the lake. These monopisthocotyleans form the first biogeographical record of their occurrence on C. zillii in Lake Naivasha, Kenya.https://polytechnic-journal.epu.edu.iq/home/vol14/iss2/5cichlid,fish ectoparasite,infection levels,monopisthocotyla,redbelly tilapia
spellingShingle Nehemiah Mogoi Rindoria
Diversity of Gill Cichlidogyrus spp. (Monopisthocotylean) Infecting Coptodon zillii (Gervais, 1848) from Lake Naivasha, Kenya
Polytechnic
cichlid,
fish ectoparasite,
infection levels,
monopisthocotyla,
redbelly tilapia
title Diversity of Gill Cichlidogyrus spp. (Monopisthocotylean) Infecting Coptodon zillii (Gervais, 1848) from Lake Naivasha, Kenya
title_full Diversity of Gill Cichlidogyrus spp. (Monopisthocotylean) Infecting Coptodon zillii (Gervais, 1848) from Lake Naivasha, Kenya
title_fullStr Diversity of Gill Cichlidogyrus spp. (Monopisthocotylean) Infecting Coptodon zillii (Gervais, 1848) from Lake Naivasha, Kenya
title_full_unstemmed Diversity of Gill Cichlidogyrus spp. (Monopisthocotylean) Infecting Coptodon zillii (Gervais, 1848) from Lake Naivasha, Kenya
title_short Diversity of Gill Cichlidogyrus spp. (Monopisthocotylean) Infecting Coptodon zillii (Gervais, 1848) from Lake Naivasha, Kenya
title_sort diversity of gill cichlidogyrus spp monopisthocotylean infecting coptodon zillii gervais 1848 from lake naivasha kenya
topic cichlid,
fish ectoparasite,
infection levels,
monopisthocotyla,
redbelly tilapia
url https://polytechnic-journal.epu.edu.iq/home/vol14/iss2/5
work_keys_str_mv AT nehemiahmogoirindoria diversityofgillcichlidogyrussppmonopisthocotyleaninfectingcoptodonzilliigervais1848fromlakenaivashakenya