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All Journal Indonesian Fisheries Research Journal Aquatic Life Sciences
OLOWO, Ukpamufo Cyril
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Veterinary

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ICHTHYOFAUNAL DIVERSITY AND CAPTURE FISHERIES IN OVIA RIVER, EDO STATE, NIGERIA. OLOWO, Ukpamufo Cyril; EGUN, Nkonyeasua Kingsley; OMORUWOU, Precious E; OBOH, Ijeoma Patience
Indonesian Fisheries Research Journal Vol 29, No 2 (2023): (December 2023)
Publisher : Jakarta Technical University of Fisheries

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/ifrj.29.2.2023.%p

Abstract

The increasing reduction in the quantity and diversity of fish catch from freshwater bodies, has become a global concern due to its impacts on human nutrition, economy, culture and zoological spectrum of the aquatic ecosystem. This study ascertained the ichthyofauna composition and diversity of Ovia River, Edo State and its capacity to sustain capture fisheries.  Fish catch from April, 2021 to March 2022 showed that Ovia River is congenial for 26 fish species of commercial importance, belonging to 5 orders, 13 families, 19 genera and 26 species. This is indicative of a rich diversity with Mormyridae dominant with 7 species, Cichlidae with 6 species, Mochokidae and Characidae with 2 species each, Ariidae, Bagridae, Channidae, Cyprinidae, Hepsetidae, Malapterunidae, Notopteridae, Pantodontidae and Schilbeidae with 1 species each. Fish species abundance showed that Cichlidae was the highest 61 individuals (39.61%), while Ariidae and Hepsetidae with 1 individual each (0.65%) were the least. The dominance and abundance of the highly priced Mormyridae and Cichlidae species implies that the water body has the capacity to sustain artisanal fisheries activities. This study has provided useful data for fisheries management and ecological studies of inland freshwater resources in Nigeria.  
Comparative Study on the Nutritional Profile of Cultured and Captured African Catfish (Clarias gariepinus) OBOH, Ijeoma Patience; EGUN, Nkonyeasua Kingsley; OLOWO, Ukpamufo Cyril
Aquatic Life Sciences Volume 3 Issue 1
Publisher : ETFLIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58920/aqlis0301598

Abstract

Aquaculture contribution to human nutrition, consumers’ preferential bias towards capture fisheries and concerns on food safety has necessitated the need for information on the nutritional composition of fish species from diverse settings such as geographical locations and aquaculture rearing facilities. This study determined the nutritional profile and associated human health risk of adult size African catfish (Clarias gariepinus) cultured in plastic tanks with those harvested from the wild. Results showed the mean protein (18.04%) and lipid (8.71%) values of cultured C. gariepinus were significantly higher than reported values in C. gariepinus from the wild, which makes them of more nutritional value to consumers. Captured fishes reported higher ash, mineral and trace metal contents, which was attributed to the elevated levels of these elements in their habitat waters due to water pollution. Low metal pollution index (MPI) values in cultured and captured fishes indicated an insignificant bioaccumulation of trace metals, and the absence of non – carcinogenic (HI <1) and carcinogenic (ICR < 1 × 10−6) risk associated with their consumption. Although the captured fishes at present poses no health risk to consumers; their recorded higher contents of trace metals, MPI, HI and CPI values is a cause for concern on the safe consumption of capture fishes. With increasing concerns on aquatic food safety, this study has shown that the consumption of cultured C. gariepinus provides more nutritional quality to consumers. The need for more monitoring studies on different culturing methods and settings on the nutritional composition and food safety is recommended.
Co-Authors NKONYEASUA KINGSLEY EGUN OBOH, Ijeoma Patience OMORUWOU, Precious E