Volume 45, Issue 4, June 2025, Pages 649–660
Nack Jacques1, ESSOME MBANG Gabel2, FONKWA Georges3, AWAH-NDUKUM Julius4, Minette Tomedi Eyango5, and JOSEPH TCHOUMBOUE6
1 Faculty of Science, University of Douala, P.O Box 24157, Douala, Cameroon
2 Laboratory of Aquaculture and Demography of Aquatic Resources, Institute of Fisheries and Aquatic Sciences, Department of Aquaculture, University of Douala, P.O. Box 7236 Douala, Cameroon
3 Laboratory of Aquaculture and Demography of Aquatic Resources, Institute of Fisheries and Aquatic Sciences, Department of Aquaculture, University of Douala, P.O. Box 7236 Douala, Cameroon
4 Applied Hydrobiology and Ichthyology Research Unit, Department of Animal Science, Faculty of Agronomy and Agricultural Science, University of Dschang, P.O. Box 222, Dschang, Cameroon
5 Département d’Aquaculture, Institut des sciences Halieutiques, Université de Douala, B.P 7236 Douala, Cameroon
6 Département des Productions Animales, Faculté d’agronomie et des Sciences Agricoles (FASA), Université de Dschang, BP : 222 Dschang, Cameroon
Original language: English
Copyright © 2025 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
A cross-sectional study was conducted from April to October 2023 along the downstream of River Nkam in Yabassi locality (Littoral-Cameroon). The objective was to determine parasite fauna, the prevalence, abundance, mean intensity and risk factors of parasitic infections in wild freshwater fishes as for their control during their successful domestication and conservation. A total of 151 fishes comprising 43 Ctenopoma petherici, 31 Clarias jaensis, 21 Parachanna obscura, 25 Chrysichthys nigrodigitatus and 31 Oreochromis niloticus randomly captured from the River Nkam were used for the determination of the parasitological indexes. The results showed an overall high prevalence of multiple infections of 72.85% of all the fish species by five groups of parasites (p<0.0001) namely monogeneans (61.53%), trematodes (18.54%), myxosporeans (19.90%), cestodes (2.83%) and nematodes (8.72%). Besides, the abundance and mean intensity of monogeneans infection were either low or average and not influenced by the fish species. The significance of the effect of the fish sex, size and weight on the infection by monogeneans depended on fish species. Fishes from the Nkam river should be quarantined and treated against parasites before farming.
Author Keywords: Parasites, fish, infection, parasitological indexes, River Nkam, Yabassi.
Nack Jacques1, ESSOME MBANG Gabel2, FONKWA Georges3, AWAH-NDUKUM Julius4, Minette Tomedi Eyango5, and JOSEPH TCHOUMBOUE6
1 Faculty of Science, University of Douala, P.O Box 24157, Douala, Cameroon
2 Laboratory of Aquaculture and Demography of Aquatic Resources, Institute of Fisheries and Aquatic Sciences, Department of Aquaculture, University of Douala, P.O. Box 7236 Douala, Cameroon
3 Laboratory of Aquaculture and Demography of Aquatic Resources, Institute of Fisheries and Aquatic Sciences, Department of Aquaculture, University of Douala, P.O. Box 7236 Douala, Cameroon
4 Applied Hydrobiology and Ichthyology Research Unit, Department of Animal Science, Faculty of Agronomy and Agricultural Science, University of Dschang, P.O. Box 222, Dschang, Cameroon
5 Département d’Aquaculture, Institut des sciences Halieutiques, Université de Douala, B.P 7236 Douala, Cameroon
6 Département des Productions Animales, Faculté d’agronomie et des Sciences Agricoles (FASA), Université de Dschang, BP : 222 Dschang, Cameroon
Original language: English
Copyright © 2025 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
A cross-sectional study was conducted from April to October 2023 along the downstream of River Nkam in Yabassi locality (Littoral-Cameroon). The objective was to determine parasite fauna, the prevalence, abundance, mean intensity and risk factors of parasitic infections in wild freshwater fishes as for their control during their successful domestication and conservation. A total of 151 fishes comprising 43 Ctenopoma petherici, 31 Clarias jaensis, 21 Parachanna obscura, 25 Chrysichthys nigrodigitatus and 31 Oreochromis niloticus randomly captured from the River Nkam were used for the determination of the parasitological indexes. The results showed an overall high prevalence of multiple infections of 72.85% of all the fish species by five groups of parasites (p<0.0001) namely monogeneans (61.53%), trematodes (18.54%), myxosporeans (19.90%), cestodes (2.83%) and nematodes (8.72%). Besides, the abundance and mean intensity of monogeneans infection were either low or average and not influenced by the fish species. The significance of the effect of the fish sex, size and weight on the infection by monogeneans depended on fish species. Fishes from the Nkam river should be quarantined and treated against parasites before farming.
Author Keywords: Parasites, fish, infection, parasitological indexes, River Nkam, Yabassi.
How to Cite this Article
Nack Jacques, ESSOME MBANG Gabel, FONKWA Georges, AWAH-NDUKUM Julius, Minette Tomedi Eyango, and JOSEPH TCHOUMBOUE, “Checklist, occurrence and associated risk factors of parasitic infections of potential farming fish species from the lower course of River Nkam, Cameroon,” International Journal of Innovation and Applied Studies, vol. 45, no. 4, pp. 649–660, June 2025.
