Endo and Ecto Parasite Prevalence and Abundance in Some Fish Species From Akomoje, Ogun River South-West Nigeria

Abstract

Parasites are the second most abundant microorganisms that infect and cause disease in wild and cultured fish after bacteria. The study investigated the parasite prevalence, abundance, mean intensity and dominance in some fresh water fish from Akomoje, Ogun River, Nigeria from February to May, 2016. Eight fish species were collected and identified to the species level. Experimental fish were measured and weighed. Endo-and ectoparasites were examined for; from Skin/scale, dorsal and caudal fins, gills, intestine and stomach of fish. Water sample was collected from shore, mid and extreme of the landing site and also analysed for parasite abundance. Prevalence of parasite in all fish species varied slightly with size. Myxozoan group revealed the highest dominance of ecto-and endo-parasites in virtually all fish species while mean intensity and abundance of Myxozoan spp. was highest in Oreochromis niloticus and Hemichromis fasciatus. Highest case of a single species of ectoand endo-parasite in a fish sample was that of Nematode larva in Chrysicthys nigrodigitatus (41.43 %) and Trichocerca sp. (Rotifera) in Mormyrus rume (52.9 %).Water analysis revealed three parasite groups that were present in the sampled fish. Conclusively, Akomoje landing site of Ogun River has a rich burden of parasites.

Parasitic incidence in cultured and wild Nile tilapia (Oreochromis niloticus) in Makurdi, Benue State, Nigeria

“…However, Bichi and Ibrahim (2009) reported higher prevalence of smaller sizes of Tilapia zilli compared to the bigger ones in their survey of Tiga Lake, Kano, Nigeria and attributed the reason in the prevalence variation to the varying distribution of parasites in the different habitat which could be due to host-parasite interaction and the water quality parameters of dissolved oxygen, temperature and pH of the fish environment. A similar observation had been made by Oghenochuko et al (2020) in their reported work of endo and ect parasite prevalence and abundance in some fish species from Akomoje, Ogun River South-West, Nigeria. Conclusively, the cultured and wild O. niloticus used for the parasitological examination in this study were found rich in parasite burden ranging from ecto to endo parasites.…”

“…Several studies have been carried out in Nigeria on parasitic fauna/parasite prevalence in different fish species (Okoye et al, 2014;Biu et al, 2014;Ejere et al, 2014;Uruku and Adikwu, 2017;Ani et al, 2017;Abba et al, 2018;Oghenochuko, et al, 2020;Omeji et al, 2022). Due to the paucity of information on the parasitic incidence in cultured and wild Nile tilapia (Oreochromis niloticus) from Makurdi, Benue State, this study therefore aimed at investigating and providing documented evidence on the parasitic incidence in cultured and wild Nile tilapia (Oreochromis niloticus) from Makurdi, Benue State, with the specific objectives of comparing the parasite population of cultured and wildO.…”

Prevalence of fish Parasites IN Bagrus bayad and Protopterus annectens from Upper River Benue in Mutum Biu, Taraba State, Nigeria

“…However, Bichi and Ibrahim [19] reported higher prevalence of smaller sized Tilapia zilli compared to the bigger ones in their survey of Tiga Lake, Kano, Nigeria and attributed the reason in the prevalence variation to the varying distribution of parasites in the different habitat which could be due to host-parasite interaction and the water quality parameters of dissolved oxygen, temperature and pH of the fish environment. A similar observation had been made by Oghenochuko et al [49] in their reported work of endo and ect parasite prevalence and abundance in some fish species from Akomoje, Ogun River South-West, Nigeria.…”