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  • 1
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    The role of women in fisheries activities in some selected fishing villages in the southern zone of Kainji Lake basin (2021)
    In:  http://aquaticcommons.org/id/eprint/4111 | 424 | 2011-09-29 16:32:36 | 4111 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-06-29
    Description: Questionnaires containing 39 questions were prepared and administered to 50 women in ten fishing villages in the Southern Kainji Lake Basin to assess the level of women participation in fisheries activities. Results showed that 100% of the women interviewed were involved in fisheries activities and the following factors were considered. Age group between 20-30 years was 18%; 31-40 years; 30%; and above 40 years had the highest percentage of 40%. Also 98% of the women involve in fisheries activities were married while only 2% were not married. Muslin women constituted 82% while 18% were Christians. About 70% of Hausas were involved: no Igbos and Yorubas, while 30% were other tribes, which included Ijaws, Isokos and Urohobos. The percentage of women without education amounted to 62%, those women with Koranic education accounted for 22%, 14% had primary education while only 2% had secondary education. Few women were directly involved in fishing and statistical analysis showed that there was insignificant difference from village to village. All the women (100%) were involved in fish processing and storage (preservation) before sale. Only 26% of the women were not involved in fish marketing. Also 26% of the women made profits ranging from N500 to N1,000 per week, 24% make N1,000 to N1,500 per week, 12% made N1,500 to N2,000 and 38% made profit above N2,000. Statistical analysis showed that there was a significant difference in the profit made by the women (P〈0.05) from the foregoing, women were actively involved in all fisheries activities
    Keywords: Fisheries ; Sociology ; Nigeria ; Lake Kainji ; artisanal fishing ; fisheries ; women
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 763-766
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  • 2
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    Trace metals of River Chanchaga and tap water in Minna Township, Niger State, Nigeria (2021)
    In:  http://aquaticcommons.org/id/eprint/22989 | 19325 | 2018-03-03 07:30:53 | 22989 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-12
    Description: The study assessed heavy metal (Copper, iron, potassium, sodium, lead, magnesium, manganeseand calcium) concentration of River Chanchaga and tap water for public consumption and fisheriesin Minna Township from June to November 2004. There were variations in the concentration ofthese metals during the sampling period, but they all fell within tolerable limits for both fish cultureand for public water consumption. The mean concentration for some of these metals were Sodium(6.1 0-8.83mg/I), potassium (2.84-3.56mg/l) and copper (0.27-3.40mg/I).
    Keywords: Fisheries ; Pollution
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 128-132
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  • 3
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    Public health implications of Gurara River around Izom environs, Niger State, Nigeria (2021)
    Fisheries Society of Nigeria | Lagos
    In:  http://aquaticcommons.org/id/eprint/22999 | 19325 | 2018-03-05 09:30:30 | 22999 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-12
    Description: Water samples were collected from River Gurara around the Gurara Falls and Izom settlement once every month for a period of twelve (12) months (June 2004 May 2005). Microbial studies were carried out on the water samples collected. There were marked variations between different samples, stations and seasons. The microbial studies showed the presence of enteric gram negative, gram positive and pyogeric groups of bacteria. Some species of indicator organisms were recorded. The results obtained showed that the activities of Izom populace has some impact on the water quality and public health status of River Gurara
    Description: Includes:- 2 tables.;12 refs.
    Keywords: Biology ; Conservation ; Health ; Nigeria ; Gurara R. ; freshwater environment ; Public health ; Microbiological analysis ; Bacteria ; Fungi
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 167 - 167
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  • 4
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    The effects of light and dark exposure on growth response of Clarias gariepinus fingerlings reared in glass aquaria (2021)
    FISON | Minna (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24101 | 19325 | 2018-05-16 13:24:18 | 24101 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: The study was carried out to determine the effect of light and dark exposures on the growth response of Clarias gariepinus fingerlings. A total of 120 four-week old Clarias gariepinus fingerlings (mean weight 0.52g~c0.02) were stocked into 20 litres of bore-hole water in glass aquarium (60x30x30) cm. Complete light, dark and normal photo periods were the experimental conditions evaluated. Growth indices such as mean weight gain and mean increase in standard lengths were significantly (p〈0. 05) highest in the dark exposure with the following values respectively: (4.19 ~c 0.02g) and (4.11 ~c 0.19cm). Also, percentage survival (82.5%) in the dark exposure was higher than light and control (45% and 70% respectively). Light exposure had higher cannibalism rate (42.5%) than the dark and control (0% and 5 % respectively). Deep shiny black skin colouration was observed among the fingerlings in the dark exposure, while those in the light and control experimental conditions exhibited lighter and normal skin colourations respectively. The experimental conditions were not influenced by the water quality parameters (mean pH: 8~c 0.1 and temp: 28.1 ~c 0.60 ~'C) since their values were within the tolerable limit for fish culture throughout the 42 days experimental period.
    Description: Includes: 4 tables;Also includes: 10 refs.
    Keywords: Aquaculture ; Ecology ; Clarias gariepinus ; Nigeria ; Maiduguri ; freshwater environment ; Fish ; Growth ; Photoperiodicity ; Experimental culture ; Fingerlings ; Cannibalism ; Survival ; Light attenuation ; Fish culture
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 223-227
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  • 5
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    Histopathological and haematological effects of acute toxicity of cypermethrin on Clarias gariepinus juvenile (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24233 | 19325 | 2018-05-19 07:27:47 | 24233 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: The experiment was conducted to evaluate the acute toxic of cypermethrin, a synthetic pyrethroids on juveniles of Clarias gariepinus. The effect was assessed based on the comparism results of haematology and histopathological tissues examinations of control and experimental group exposed to five nominal concentration of cypavest, 10EC Pesticide Preparation (active substance 100mg/l) of cypermethrin in a static non-renewal bioassay for 96 hours. The 96hrs LC50 value of the exposed juveniles was found to be 0.062 mg/1. Fish exhibited progressive loss of balance, respiratory distress, erratic movement and death. Examination of haematology significantly showed higher value (P〈0.001; 0.01) of white blood cell (WBC), mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), packed cell volume (PCV), monophilis and heterophilis; a significant reduction (P〈0.001, 0.01) in Red Blood Cell (RBC) and Lymphocyte was obtained as compared to the control. Severe necrosis, haemorrhages vacuolation, congestion and focal interstitial haemorrhages were the stopathological changes in the tissues of gill and liver, thus concluding that cypermethrin is toxic to juveniles of Clarias gariepinus.
    Description: Includes: 17 references.
    Keywords: Pollution ; Aquaculture ; Clarias gariepinus ; Nigeria ; Borno State ; Cypermethrin ; cypavest ; Synthetic pyrethroid ; Static-non renewal ; bioassay ; freshwater environment ; Histopathology ; Haematology ; Toxicity ; Freshwater fish ; Juveniles ; Pollution effects ; Evaluation ; Comparative studies ; Experimental research ; Bioassays ; Toxicants ; Pesticides
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 322-326
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  • 6
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    Effects of different types of fertilizers on plankton productivity in earthen ponds (2021)
    In:  http://aquaticcommons.org/id/eprint/3605 | 424 | 2011-09-29 17:06:18 | 3605 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-06-28
    Description: Three fertilizer types (NPK, Super-phosphate and cow dung) were applied at two levels (Low, 0.3 kg/25m super(2)/2weeks and High, 0.7kg/25 m super(2)/2weeks) to 12 ponds with two ponds serving as control. Each pond had an area of 25 m super(2). Application of fertilizers and monitoring of plankton productivity and water quality parameters continued fortnightly for 52 days. Results obtained weresubjected to Statistical Variance Analysis. The abundance ofphytoplankton was in the order: Chlorophyceae 〉 Bacillariophyceae 〉 Cyanophyceae 〉 Desmideaceae. While that of zooplankton followed the order: Crustacean 〉 Rotifer 〉 Protozoan. Primary productivity showed a variation between treatments with lowest value of 5592 mg/O sub(2)/m super(3)/day obtained in the control and cow dung low application rates (1.5 kg/25 m super(2)/2weeks). The highestvalue for primary productivity was obtained at M sub(2) (0.7 kg/25 m super(2)/2weeks, N.P.K) with primary productivity value of 7200 mg/O sub(2)/m super(3)/day, closely followed by M sub(4) (0.7 kg/25 m super(2)/2weeks, super phosphate) with 6792 mg/O sub(2)/m super(3)/day.
    Keywords: Biology ; Nigeria ; experimental culture ; fertilizers ; phytoplankton ; ponds ; primary production ; zooplankton ; algae
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 127-131
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  • 7
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    The assessment of physico-chemical parameters of Shiroro Lake and its major tributaries (2021)
    In:  http://aquaticcommons.org/id/eprint/3865 | 424 | 2011-09-29 16:46:06 | 3865 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-06-26
    Description: The physico-chemical parameters of the surface water of Shiroro Lake and its major tributaries at their entry point to the reservoir were assessed over a period of eighteen months. As in other African inland water bodies there were seasonal variations in the parameters measured. The hydrological regime of the lake, precipitation chemistry, bedrock chemistry and hydro-electric power generation influence and determine the inputs of dissolved organic carbon, nutrient levels and water quality of the lake. The added nutrients to the lake by means of the major tributary rivers and inundation of surrounding areas also influence the water quality of the lake. The wet season mean values for water and air temperature were significantly (P 〈0.05) higher than dry season mean values in all stations. However, for pH, Dissolved oxygen and Phosphate-phosphorus the dry season mean values were higher than wet season mean values
    Keywords: Limnology ; Environment ; Nigeria ; Lake Shiroro ; chemical properties ; fishery limnology ; limnology ; nutrient cycles ; physicochemical properties ; water properties
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 260-268
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