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  • 1
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    Toxicity of herbicide Propanil on Oreochromis niloticus fingerlings (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23438 | 19325 | 2018-05-02 08:16:59 | 23438 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: A static bioassay method to determine the acute toxicity of the herbicide propanil to Oreochromis niloticus was investigated under Laboratory conditions for 96 hours exposure period. Concentrations of propanil used include: 0.0096ml/l, 0.0103ml/l, 0.011ml/l and 0.012ml/l respectively. The lethal concentration (LC50) value of propanil on fingerlings of Oreochromis niloticus was 0.0097ml/l for 96 hours of exposure. The regression equation for probit kill from propanil was found to be Y = 29.84 + 12.33* log conc. (r2 0.9951, Y = Probit kill). Fish showed various abnormal behaviours upon exposure to propanil. Immediate reaction was erratic swimming and tendency to jump out of the test bowl. Others include: restlessness, un-coordinated movement, vertical swimming, air gulping, equilibrium loss, a period of quiescence and eventually death.
    Description: Includes:- 2 tables.;1 fig.;21 refs.
    Keywords: Fisheries ; Pollution ; Oreochromis niloticus ; Nigeria ; Markudi ; freshwater environment ; Toxicity ; Lethal effects ; Toxicants ; Pollution effects ; Fingerlings ; Herbicides
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 138-143
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  • 2
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    Aquaculture and the environment (2021)
    FISON | Minna (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24072 | 19325 | 2018-05-12 13:54:51 | 24072 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: Aquaculture industry in the last five decades has grown at an unprecedented rate (Average growth of 3.2 percent per year) stimulated by the increased demand for fish and fishery products as global population awareness of fish as a health food increased and the population from capture fisheries becomes almost static. In the light of the noticeable expansion, this review paper focuses on the deleterious effect of many aquaculture practices which includes; degradation of terrestrial environments, pollution from chemical as well as waste and nutrient loading, diseases to mention but a few. Measures are proffered to reduce the negative impact of Aquaculture on the environment. The efforts of the National Environmental Standards and Regulation Enforcement Agencies (NESREA) as it concerns EIA should be broadened to ensure that small aquaculture ventures along the coastline and within inland water bodies be considered to avoid environmental hazards.
    Description: Includes: 2 tables;Also includes: 32 refs.
    Keywords: Aquaculture ; Pollution ; Nigeria ; Aquaculture ; Environment ; Poverty ; EIA ; Food security ; freshwater environment ; Aquaculture ; Aquaculture systems ; Environmental degradation ; Chemical pollution ; Wastes ; Environmental effects ; Environmental legislation ; Environmental assessment ; Food security ; Pollution effects
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 39-47
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