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  • 1
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    Determination of intestine length to standard length ratio of some fishes from Ikpoba River and Ovia River, Nigeria with a review of culture of Parachanna obscura (Pisces:Channidae) (2021)
    FISON | Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23229 | 19325 | 2018-03-18 14:58:27 | 23229 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-13
    Description: The gut length to standard length ratios of twelve fish species from the Ovia and Ikpoba Rivers were calculated to work out their feeding level in the food chain. The mean ratio of five species Brycinus macrolepidotus Smith, 0.9 Parachanna obscura (Gunther), 1.0, Papyrocranus afer. Gunthel; 0.35, and Xenomystus nigri Gunther 0.75, classify them as carnivores. Four species Synodontis eupterus Boulenger; 4.4 S.schall (Bloch and Schneider) 4.8, Tilapia mariae Boulenger, 3.5, and T. tilli (Gervais), 4.7, are herbivores. Three intermediate ratio species B. longipinnis (Gunther), 1.3,Chrysichthys furcatus (Gunther) 1.6, and Clenopoma kingsleyae Gunther, 1.8, are omnivores. The body depth of seven of the species was measured and expressed as percentage of the standard length to ascertain the accommodative capacity of the fish for the gut. In addition a review of culture of snake head fish Parachanna obscura is presented.
    Description: Includes:- 3 tables.;18 refs.
    Keywords: Aquaculture ; Ecology ; Parachanna obscura ; Nigeria ; Ikpoba R. ; Nigeria ; Ovia R. ; freshwater environment ; Fishery biology ; Length ; Ratios
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 106 - 112
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  • 2
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    A study of ratio of intestine length to body length in fish species from the Okhuo River, Nigeria (2021)
    In:  http://aquaticcommons.org/id/eprint/22987 | 19325 | 2018-03-03 07:25:19 | 22987 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-12
    Description: Seventy two fish specimens belonging to ten species, nine genera, six families and four orderscollected from the Okhuo River with gillnets, hook and line. The Family Cichlidae constituted 40%the total number of species and 44.44% of the total number of individuals. The ratios of the,'n TQCTllnalength to standard body length measured in centimeter were computed. The mean ratiosChromidotilapia guentheri (Sauvage) (2.18), Oreochromis aureus (Steindachner) (3.46)Tilapia mariae (Boulenger) (9.27) portrayed herbivorous adaptation whereas ratiosPapyrocranus afer (Gunther) (0.22), Parachanna obscura (Gunther) (0.70), Ctenopoma(Gunther) (0.94), Hemichromis fasciatus (Peters) (0.85), 8rycimus longipinnis (Gunther) (1depicted carnivorous adaptation. 8rycinus nurse (Ruppel) (1.41) and Malapterurus(Gunther) (1.62) fitted between carnivores (0.22-1.00) and herbivores (2.18-9.27).
    Keywords: Biology ; Fisheries
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 62-66
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  • 3
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    Effect of environmental factors on coastal fisheries (2021)
    Fisheries Society of Nigeria | Zaria (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23305 | 19325 | 2018-03-30 15:13:13 | 23305 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: Factors which threaten sustainable commercial fisheries are considered in this paper. Oil and grease, suspended solids, overfishing impact on fishes and fisheries. Whereas overfishing declines adult fish values; the duo of oil and suspended solids clog and disable gills of affected fishes and deplete insolation. And barnacles foul boats.
    Description: Includes:- 1 table.;13 refs.
    Keywords: Fisheries ; Health ; ASE ; Nigeria Coast ; freshwater environment ; Pollution ; Pollution effects ; Oil pollution
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 133-135
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  • 4
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    Evaluation of trunk as the most fleshy region of some fish species from the Warri River, Delta State, Nigeria (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23492 | 19325 | 2018-05-06 13:03:31 | 23492 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: Major sections (head, trunk and tail) of six fish species from the Warri River were measured in order to determine which was the largest and most fleshy. Besides Ethmalosa fimbriata (37.31%) the trunk length was over 40% of the standard length in the fish species. Based on the length and breadth the trunk was larger than the tail and head in all species and could be the bulkiest and most fleshy region. The sequence of the trunk surface area was Brycinus macrolepidotus 〉 B.nurse 〉 Pellonula leonensis 〉 Liza grandisquamis 〉 Mugil cephalus 〉 Ethmalosa fimbriata.
    Description: includes:- 7 tables.;9 refs.
    Keywords: Fisheries ; Nigeria ; Warri R. ; freshwater environment ; Morphometry ; Dimensions
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 466-469
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