A survey of ectoparasites on the gills, skin and fins of oreochromis Niloticus at Bagauda fish farm, Kano, Nigeria

Bichi, AH; Dawaki, Salwa

doi:10.4314/bajopas.v3i1.58720

Cited by 14 publications

(14 citation statements)

References 1 publication

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“…Rohlenova et al [36] reported that unfavourable temperature may alter fish physiology including immune function favouring parasite invasion. Other factors such as the behaviour and life history of the parasites and host fish might contribute to high parasitic infection [37].…”

Section: Discussionmentioning

confidence: 99%

Branchial Chamber and Gastrointestinal Tracts Parasites of Fish Species in Benue and Niger Rivers, North Central, Nigeria

Onoja-Abutu

Okpanachi

Alkazmi

et al. 2021

International Journal of Zoology

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Freshwater fish species are posing health challenges by either serving as host of parasites that are harmful to man and animals. This study was conducted to determine the parasitic profile of the branchial and gastrointestinal tracts of freshwater fish species from Niger and Benue rivers at Lokoja. These fish species are Tilapia zillii, Oreochromis niloticus, Clarias species, Synodontis schall, and Megalops atlanticus. Fish samples were collected within a period of 12 months, and the species and sex of the fish were identified. The two opercula of each fish were removed and examined for parasites; parasites recovered were preserved in 0.7% physiological saline. Gastrointestinal tracts were removed from each fish, placed in physiological saline, and examined microscopically for parasites. Prevalence of parasites was calculated. The chi-square test was used to compare prevalence of parasites according to sexes, body parts examined, fish species, and parasites species, while the t-test was used to compare between gills and intestines of each fish species. The chi-square test was used to determine if any significant difference exists in prevalence between the sexes, body parts, fish species, and parasites species, while the t-test was used to determine if any significant difference exists in prevalence between the gills and intestines of each fish species. A total of seven parasites species were harboured in branchial chamber and gastrointestinal tracts of fish species from rivers Niger and Benue: Clinostomum sp. (trematode), Camallanus sp. (nematode), Capillaria sp., Rhabdochona congolensis (nematode), Contracaecum sp. (nematode), Proteocephalus sp. (cestode), and Spinitectus guntheri. T. zillii (81 (95.3%)) had the highest prevalence, while O. niloticus, Clarias sp., S. schall, and M. atlanticus had prevalence of 87 (89.7%), 96 (80.0%), 48 (70.6%), and 27 (38.6%), respectively. Out of the total fish samples examined, females (191 (80.3%)) were observed to harbour more parasites than males (148 (73.3%)). The gastrointestinal tracts (287 (65.2%)) significantly harboured more parasites than branchial chamber (52 (11.8%)). Fish species in rivers Niger and Benue are highly infected with parasites. Fish consumers should subject the fish to proper processing before consumption, as some of these parasites are of zoonotic importance.

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Section: Discussionmentioning

confidence: 99%

Branchial Chamber and Gastrointestinal Tracts Parasites of Fish Species in Benue and Niger Rivers, North Central, Nigeria

Onoja-Abutu

Okpanachi

Alkazmi

et al. 2021

International Journal of Zoology

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“…An increase in size as postulated by Oniye et al (2004) is an indication of an increase in length and weight of fish and this can also be considered as a measure of age. Therefore, this observation may be attributed to the fact that larger size C. gariepinus provide a larger surface area for parasitic infection than the smaller ones and the ability of larger size fish to cover wide areas in search of food, and as a result of these, they take in more food than smaller ones which may expose them to parasitic infections (Tachia et al 2010;Omeji et al 2013;Bichi and Dawaki 2010). Bichi and Dawaki (2010) reported that the prevalence was found to increase as the fish grows and could be attributed to the longer time of exposure to the environment by body size.…”

Section: Discussionmentioning

confidence: 99%

Comparative study of African catfish parasites from cultured and natural habitats

2020

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Background The study was conducted to compare parasitic loads of Clarias gariepinus from cultured and natural habitats. A total number of 80 live adults (200–799 g) C. gariepinus comprising of 20 each were randomly obtained from two cultured habitats (ponds) and two natural habitats (rivers). In the laboratory, these fish were all examined for the presence of parasites. Their sexes were identified while the lengths and weights were measured and recorded prior to dissection. The parasites observed were also identified using morphological characteristics. Results Out of the 80 C. gariepinus sampled, 43 (53.75%) were infected and a total of 409 parasites comprising of 141 (34.47%) ectoparasites and 268 (65.53%) endoparasites were observed from the infected fish. The prevalence of parasitic infection in cultured and natural habitats was 20% and 33.75%, respectively. The results showed that there was a significant difference (P < 0.05) in parasitic infection of C. gariepinus obtained from cultured and natural habitats. Parasitic loads were observed to be significantly higher in natural habitat (33.74% and 26.16% for river A and river B, respectively) compared to cultured habitat (20.54% and 19.55% for pond A and pond B, respectively). The prevalence of parasites in relation to sexes of C. gariepinus was not significantly different (P > 0.05) for both habitats. It was also noted that catfishes with body weight 500–599 g had the highest prevalence (100%) both in cultured and natural habitats. Conclusions The study showed that the parasite loads were more in C. gariepinus obtained from natural habitat compared to those obtained from cultured habitat. It is therefore recommended that the sanitary conditions under which fishes are reared in fish pond should be improved and fish stocked from natural habitats or unscreened ponds should be quarantined to eliminate and treat possible parasitic infection before introducing them into other fish ponds.

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“…Parasites are a major concern to freshwater and marine fishes all over the world, and of particular importance in the tropics (Iyaji and Eyo, 2008;Bichi and Dawaki, 2010;Ekanem et al, 2011). They constitute a major limiting factor to the growth of farmed fish in Nigeria (Bichi and Yelwa, 2010).…”

Section: Introductionmentioning

confidence: 99%

Parasitofauna of Five Freshwater Fishes in a Nigerian Freshwater Ecosystem

Ejere¹,

Aguzie²,

Ivoke³

et al. 2014

CJF

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A survey of ectoparasites on the gills, skin and fins of oreochromis Niloticus at Bagauda fish farm, Kano, Nigeria

Cited by 14 publications

References 1 publication

Branchial Chamber and Gastrointestinal Tracts Parasites of Fish Species in Benue and Niger Rivers, North Central, Nigeria

Branchial Chamber and Gastrointestinal Tracts Parasites of Fish Species in Benue and Niger Rivers, North Central, Nigeria

Comparative study of African catfish parasites from cultured and natural habitats

Parasitofauna of Five Freshwater Fishes in a Nigerian Freshwater Ecosystem

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