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  • 1
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    Acute toxicity of 2, 3-dichlorovinyl dimethyl phosphate (Sniper 1000EC) and response of Clarias gariepinus Burchell under laboratory conditions (2021)
    Lagos (Nigeria) | FISON
    In:  http://aquaticcommons.org/id/eprint/24215 | 19325 | 2018-05-19 06:53:11 | 24215 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: The study investigated the acute toxicity of 2, 3-dicholrovinyl dimethyl phosphate (Sniper 1000EC) on the African mud catfish, Clarias gariepinus juveniles (mean weight 19.47 ~c 1.05g) using static bioassay method. Sniper 1000EC is an organophosphate pesticide. Each treatment in the acute test was in triplicate with bioassay media concentration of 0,5, 10, 15 and 20 mg/l. Data on mortalities of fish, water physic-chemical parameters as well as changes in haematological indices were subjected to one way analysis of variance (ANOVA) at 5% probability level. Duncan multiple range test was used to separate differences between the means. The 96hr LC50 estimated by probit analysis during the exposure was found to be 8.20mg/l. Behavioural abnormalities of the exposed fish included erratic and uncoordinated swimming and bleached skin with lesion at the highest concentration (20mg/l). Blood dyscrasias attributable to the toxicant was observed with a significant (p〈0.05) decrease in haemoglobin, haematocrit, red blood cells, white blood cells, lymphocytes and monocytes. Mean corpuscular volume (MCV), Mean corpuscular haemoglobin (MCH), neutrophils, eosinophil and basophil increased significantly (p〈0.05) with increasing concentrations of the toxicant. These abnormalities in body and blood parameters as a result of exposure to the toxicant make the study to recommend that the use of Sniper 1000EC by local fishermen be banned to preserve aquatic lives in Nigerian inland water bodies.
    Description: Includes: 22 references.
    Keywords: Fisheries ; Pollution ; Clarias gariepinus ; Nigeria ; Niger State ; Sniper 1000EC ; Clarias gariepinus ; Toxicity ; Haematological indeces ; freshwater environment ; Toxicity ; Phosphate deposits ; Response analysis ; Freshwater fish ; Juveniles ; Bioassays ; Toxicity tests ; Physicochemical properties ; Controlled conditions ; Haematology ; Pollution monitoring
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 250-253
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  • 2
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    The socio-economic analysis of small scale fish farmers in Lagos State fish farm estate, Ikorodu, Nigeria (2021)
    FISON | Minna (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24100 | 19325 | 2018-05-19 06:34:02 | 24100 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: This study was conducted to evaluate the socio-economic analysis of small scale fish farmers in Lagos state fish farming estate in Ikorodu, Nigeria. The primary data were obtained from 60 respondents with structured interview guides and face to face interview, which were selected using simple random sampling techniques. The result revealed that most (88.3%) of the fish farmers are male while (31.40%) are in the active age distribution of 31-40 years, university education (63.0%) and 58.3% were married, 73.4% had a household size that ranged between 3 - 5 persons. Results of the descriptive analyses and tests of significance however showed that there was a significant relationship between socio-economic characteristics and constraint of fish farmers in the estate, there is also a significant relationship between income of fish farmers and constraints of the fish farm enterprise. Implications of these findings were critically-examined, and pertinent recommendations were proffered based on the salient findings in the study.
    Description: Includes: 6 tables and 1 figure;Also includes: 17 refs.
    Keywords: Aquaculture ; Sociology ; Nigeria ; Lagos ; Farm estate ; fish farming enterprises ; Ikorodu ; Small scale ; Socio-economic ; Nigeria ; freshwater environment ; Fish culture ; Artisanal fishing ; Socioeconomic aspects ; Evaluation ; Aquaculture
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 214-222
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  • 3
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    The demand analysis for fresh fish in Abeokutta Metropolis of Ogun State (2021)
    Minna (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24108 | 19325 | 2018-05-16 13:57:44 | 24108 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: This study examined the demand analysis for fresh fish in Abeokuta metropolis of Ogun State, Nigeria. Data were collected with the aid of structured interview schedules and direct interview to elicit information from 150 fresh fish consumers randomly selected from within the locality of three major fresh fish markets (Olomore, Itoku, and Kuto). The data collected were analyzed using descriptive statistics and regression analysis which revealed that most of the fresh fish consumers (95.9%) were literates with mean household size of 5 persons. Also, 70% of the respondents are female out of which 71.3% are married, 52.8% were in the active age of 31-40 years old, and 70% are Yoruba speakers. Few (33.3%) of the high income earners spends the least income expenditure on fresh fish while 67.7% of the low income earners spends on frozen fish. It was evident from the study that the quantity of fish demanded increases as household size, income and age increases. The regression results shows that 36.8% of the total variation in the demand for fresh fish are variables while the remaining 63.2% were not explained by variables with R value of 0.368 according to the equation. Based on the findings, it was discovered that many people preferred fresh fish to frozen fish; efforts should be made to discourage importation of frozen fish and divert the huge amount spent on importation on expansion of aquaculture industry for the provision of more fresh fish for the consumers.
    Description: Includes: 4 tables and 2 figures;Also includes: 12 refs.
    Keywords: Fisheries ; Aquaculture ; Demand analysis ; freshwater environment ; Freshwater fish ; Response analysis ; Fishery products ; Economic benefits ; Consumers ; Taste ; Trade
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 266-273
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