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  • 1
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    Microbiological index of water pollution in Lake Kivu, Rwanda (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23451 | 19325 | 2018-05-04 17:34:56 | 23451 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: Investigation of the microbiological purity of Lake Kivu as index of water pollution was carried out in Gisenyi, Kibuye and Cyangugu over a period of 24 months. Microbial load did not differ significantly with season and locations but Fecal Coliform (FC) had positive significant correlation (r = 0.36; p〈0.05) with season. Mean Total Coliform (TC) (cfu/100ml) was highest 7.7 x 105 in Gisenyi and lowest 1.7 x 105 at Cyangugu. These values exceeded the 5000 colony forming units/100ml recommended by WHO for public surface water supplies. Total heterotrophic bacterial (THB), FC, TC and Fecal streptococcus (FS) were widespread with abnormally high values in the sampling locations signifying poor water quality. Microbial isolates from the water samples were of wide range of groups and their occurrence and distribution varied from location to location. Bacillus sp, E. coli, Citrobacter freundii, Klebsiella pneumonia and Proteus sp were the cosmopolitan microbial species in the lake water. The microbial quality of the water was poor rendering it unsafe for domestic purposes without treatment and this was largely caused by direct contamination of the lake by animals and human domestic wastes.
    Description: Includes:- 2 tables.;3 figs.;14 refs.
    Keywords: Biology ; Limnology ; Pollution ; Rwanda ; Kivu L. ; freshwater environment ; Microbial contamination ; Microbiological analysis ; Water quality ; Water pollution
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 220- 225
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  • 2
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    Assessment of chemical and nutrient characteristics of selected wetland waters and sediments in Bo - Moyamba districts, southern Sierra Leone (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24617 | 19325 | 2018-05-22 06:09:58 | 24617 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: The impact of anthropogenic activities on chemical and nutrient characteristics of selected wetlands in Moyamba and Bo districts was investigated. Water and sediments samples for nutrient and trace metal analysis were collected for two seasons (wet and dry) at sampling sites. Anthropogenic activities such as industrial effuent, domestic and agricultural waste disposal constitute major sources of wetland pollution in the selected districts. Samples of water and soil were analyzed for metals (Cr, Co, Cd, Ni, Pb, Mg, Mn, Fe, C1 and Zn) and nutrients (Ca, K, P and Na) levels were determined and their seasonal variations were compared at (p〉0.05) significant levels. Physico-chemical parameters such as Temperature, Dissolved oxygen, Ammonia, Nitrate, pH, general hardness, total alkalinity were also measured. Fe was the most concentrated metal in water (mean range 15.93 ~c 1.51 to 33.65 ~c 7.79mg/l) and in sediment (15748 ~c 3526 to 107702 ~c 84038 mg/1), while Cr and Mg were the least concentrated (0.34 ~c 0.14 to 0.53 ~c 0.09mg/l) and (0.07 ~c 0.01 to 0.22 ~c 08 mg/1) respectively. Generally, trace meta levels in sediment of the study area were relatively higher than tht concentration in water. Na was the most concentrated nutrient in both water and sediment, while calcium has the least. Calcium plays an important role in blood clotting, muscular contractions and in some enzymatic processes and as such its level in the studied wetland must be augmented. Accumulations of metals in the environmental matrices are ecologically undesirable as they pose threats to man who is the end user of the values of wetland ecosystems and consequently the need for policy intervention in the effective management of both domestic and industrial wastes.
    Description: Includes: 33 references.
    Keywords: Ecology ; Limnology ; Nigeria ; Trace metals ; Nutrient ; Physico-chemical ; Wetland ; Enthropogenic ; Policy intervention ; freshwater environment ; automation
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 200-205
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  • 3
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    Benefit related relationship among artisanal fisher folks of Tombo fish landing community (2021)
    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24603 | 19325 | 2018-05-21 12:20:04 | 24603 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-15
    Description: Benefit related relationship among the artisanal fisher folks of Tomho, a fishing community in Western Rural District of Sierra Leone was studied. The study was carried out to ascertain the socioeconomic activities of the target group, their level of involvement and reasons for going into transactional sexual activities. Eighty (80) structured questionnaires were administered to randomly selected fishermen and people engaged in fish related activities and this was backed up hy the record of HIV cases especially among women at tht Tombo Community Health Centre. Data collected from the interview were treated using measure of central tendency such mean and percentages and results are presented in tables and charts. Respondents age ranged between 15-65 years; sex (fishermen to fish traders) was 71.3% (female) and 28.75% (males) respectively. Marital status of respondents was single, married, divorced, seperated and widowed. Predominant religion of repondents was Islam and Christianity. The study revealed that transactional sex in the study area is mediated by economic structural and environmental factors. The study also revealed that 70.12% of documented HIV cases at the Tombo Community Health Centre were female, while 29.87% were male between the active age of 15-55 years. Fish traders (68.8%) constituted the highest carriers of HIV in the study area.
    Description: Includes: 9 references.
    Keywords: Fisheries ; Sociology ; Nigeria ; Tombo ; Fishing communitu ; Transactional sex ; Socio-economic ; Community health Centre ; freshwater environment ; automation
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 146-149
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  • 4
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    Fish species composition in Lake Kivu, Rwanda, East Africa (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23462 | 19325 | 2018-05-05 12:34:34 | 23462 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: An assessment of the fish species composition in Lake Kivu Rwanda, East Africa was carried out between February 2005 and December 2006. Fish samples and statistics of average daily catches were collected from the organized fishermen cooperatives societies in Gisenyi, Kibuye and Cyangugu. Fish samples were identified on the basis of existing photographs and standard identification keys. Ten (10) fish species belonging to four families (Clupeidae, Cyprinidae, Clariidae and Cichlidae) were identified with Limnothrisa miodon (57.1%), Haplochromis spp. (17.1%), Tilapia rendalli (9.9%) and Oreochromis niloticus (9.5%) being the dominant ones.
    Description: Includes:- 2 tables.;4 figs.;17 refs.
    Keywords: Fisheries ; Rwanda ; Kivu L. ; freshwater environment ; Check lists ; Population dynamics ; Stock assessment
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 284-289
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  • 5
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    Assessment of the fish consumption pattern of Njala-Mokonde community residents, Moyanba District, Sierra Leone (2021)
    Fisheries Society of nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23481 | 19325 | 2018-05-06 12:41:03 | 23481 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: Information on the fish consumption pattern of the residents of Njala community, Moyanba district, Sierra Leone is rare. Njala is a University community closely annexed by Mokonde village. This study was carried out using structured questionnaires to investigate the fish consumption pattern of the people of the community. The questionnaires were delivered by hand to randomly selected members of the community. 90 respondents comprising 40 males and 50 females were sampled. The respondents composed of 22.2% academics, 8.89% farmers, 14.4% sales persons, 2.22% bank workers, 1.11% police staff, 33.3% dependents, and 1.11% civil servants. 16.7% of the respondents did not indicate their work category. The ages of respondents were between 10 ? 70 years. The results generated showed that 98.9% of the respondents eat one type of fish or the other while 1.11% does not eat fish. Average money spent by respondents ranged from Le 2000 ? Le 10,000. However 48.9% of the respondents spend more than Le 10,000 weekly. Consumption pattern seems to be proportional to income of respondents. Poverty and starvation is pronounced in the study area and this probably accounted for the low consumption of protein-based food especially fish. Keywords: Fish consumption, Respondents, Njala, Mokonde, Sierra Leone.
    Description: Includes:- 2 tables.;2 figs.;14 plates.;6 refs.
    Keywords: Fisheries ; Sierra Leone ; freshwater environment ; Fish consumption
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 353-359
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