Isolation, Identification and Prevalence of Parasites on Oreochromis niloticus from Three Selected River Systems

Ashade, Olufemi Olukayode; Osineye, OM; Kumoye, E.A.

doi:10.3923/jfas.2013.115.121

Cited by 14 publications

(13 citation statements)

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“…Fish are rich source of protein to man and other animals. ey contain lipids, mineral oils, and vitamins which have a remarkable impact on the lives of many individual and communities [9,10]. Fish oils are known to contain omega-3 essential fatty acid which helps for the proper functioning of the brain, heart, and immune system [11].…”

Section: Introductionmentioning

confidence: 99%

“…Fish oils are known to contain omega-3 essential fatty acid which helps for the proper functioning of the brain, heart, and immune system [11]. Fishes interact at the various levels of food chain, thereby influencing the habitat structure [9]. Despite their significance to man, freshwater fish species are known for harbouring parasitic organisms by either serving as intermediate or definitive host of parasites which are harmful to man and animals [12].…”

Section: Introductionmentioning

confidence: 99%

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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: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

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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show abstract

“…Fish are rich source of protein to man and other animals. They contains lipids, mineral oils, and vitamins which have a remarkable impact on the lives of many individual and communities [9,10]. Fish oils are known to contain omega-3-essential fatty acid which helps for the proper functioning of the brain, heart and immune system [11].…”

Section: Introductionmentioning

confidence: 99%

“…Fish oils are known to contain omega-3-essential fatty acid which helps for the proper functioning of the brain, heart and immune system [11]. Fishes interact at the various levels of food chain, thereby in uencing the habitat structure [9]. Despite their signi cance to man, freshwater sh species are known for harbouring parasitic organisms by either serving as intermediate or de nitive host of parasites which are harmful to man and animals [12].…”

Section: Introductionmentioning

confidence: 99%

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

Onoja-Abutu

Okpanachi

Yaro

et al. 2021

Preprint

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Background 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. Fish samples were collected within a period of 12 months, 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 and comparison among categories was done using chi-square and student t-test. Results A total of seven parasites species were harboured in branchial chamber and gastrointestinal tracts of fish species from Rivers Niger and Benue at Lokoja; Clinostomum sp. (trematode), Camallanus sp. (nematode), Capillaria sp., Rhabdochona congolensis (nematode), Contracaecum sp. (nematode), Proteocephalus sp. (cestode) and Spinitectus guntheri. T. zilli 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 with prevalence of 191(80.3%) and 148(73.3%) in females and males respectively. The gastrointestinal tracts 287(65.2%) was significantly harboured more parasites than branchial chamber 52(11.8%). Conclusion 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 maybe of zoonotic importance.

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“…Fishes are food source for human and other animals. Globally fishes are the most feasible option in resolving protein shortage because they are very rich source of protein and contains lipids, mineral oils, and vitamins [1,2]. Fishes interact with most level of food chain and they influence habitat structure, since they are usually restricted to particular mode of life due to their food source and reproductive characteristics [2].…”

Section: Introductionmentioning

confidence: 99%

Stomach Content of Tillapia zilli and Oreochromis nilocticus from Wanzun River, Lavun Local Government, Niger State Nigeria

Mohammed

Abubakar

Muhammad

et al. 2021

AJFAR

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This study was conducted to investigate the stomach contents of two commercially important fish species (Tilapia zilli and Oreochromis nilocticus) from Wanzun River, Northcentral Nigeria using frequency of occurrence and volumetric methods between January to April 2019. Fish samples were collected monthly with help of Fishermen using various fishing nets and traps. One hundred (100) individual fish of each species were collected and their stomach contents were examined. The results obtained expressed in mean percentage indicated that out of the one hundred (100) individual fish of each species examined,Twelve (12%) fish had an empty stomach contents in Tilapia zilli, and out of the 100 samples examined, Seventeen (17%) fish had an empty stomach content in Oreochromis nilocticus. The stomach contents of both Tilapia zilli and Oreochromis nilocticus consist of detritus, insects, fish remains. Algae/protozoans plant materials and molluscs. Both fish species are omnivorous feeders and occupy the same ecological niche.The study reveals the importance of algae, fish, insects and plant materials as food for fishes and they form important part in the diet of the species examined.

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Isolation, Identification and Prevalence of Parasites on Oreochromis niloticus from Three Selected River Systems

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

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

Stomach Content of Tillapia zilli and Oreochromis nilocticus from Wanzun River, Lavun Local Government, Niger State Nigeria

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