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  • 1
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    Status of kariba weed (Salvinia molesta) infestation, its impacts and control options on Uganda’s water systems (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/20933 | 4230 | 2016-07-24 07:50:29 | 20933 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-13
    Description: Kariba weed (Salvinia molesta) is an invasive alien waterweedthat was first recorded in Uganda in sheltered bays of LakeKyoga in June 2013. This waterweed has become a commonfeature on Lake Kyoga and its associated rivers, streams andswamps, and has spread to other lakes notably Kwania and Albert in addition to Lake Kimira in Bugiri district.
    Keywords: Environment ; Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
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  • 2
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    Mushroom growing as a livelihood option to fishing among Lake Edward fisher communities (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/20932 | 4230 | 2016-07-24 07:47:59 | 20932 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-13
    Description: Fisheries activities are the main source of livelihood for the communities that live at Lake Edward fish landing sites. The landing sites include: Kazinga, Katwe, Kayanja, Kishenyi Rwenshama and Katunguru and are located within Queen Elizabeth Conservation Area (QECA).In spite of being the main source of livelihood, 74% of therespondents in a 2013 survey reported that catches forthe main targeted fish species namely: Bagrus docmak(Semutundu), Oreochromis niloticus (Tilapia) and Protopterusaethiopicus (Mamba) were declining due to overfishingand catching of immature fish by the rapidly increasingpopulation. Lake Edward Frame surveys had shown that thenumber of fishing crafts increased from 302 in 2008 to 330 in 2011, while the number of fishers increased from 355 to 600 during the same period. Between 2008 and 2010, catch perboat, for Bagrus docmak (Semutundu) declined from 5.25kg to 4.04 kg and for Protopterus aethiopicus (Mamba) from2.63 kg to 1.03kg.It has been suggested that reducing pressure on the lakeshould be handled using different approaches, one of whichis introduction of programs for enhancing livelihood optionswhich do not conflict with conservation of Queen ElizabethConservation Area (QECA). The main goal of this study wastherefore to identify, prioritize and pilot livelihood options at selected landing sites of Lakes Edward and George.
    Keywords: Agriculture ; Fisheries
    Repository Name: AquaDocs
    Type: monograph
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    Format: 2
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  • 3
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    Fishing effort and fish yield over a 15 year period on Lake Victoria, Uganda: management implications (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/20931 | 4230 | 2016-07-24 07:51:39 | 20931 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-13
    Description: The National Fisheries Resources Research Institute (NaFIRRI), the Directorate of Fisheries Resources (DiFR), the Local Government fisheries staff and those from the Beach Management Units (BMUs) of the riparian districts to Lake Victoria regularly and jointly conduct Frame and Catch Assessment Surveys. The information obtained is used to guide fisheries management and development. We reveal the trends in the commercial fish catch landings and fishing effort on the Uganda side of Lake Victoria, over a 15 year period (2000-2015) and provide the underlying factors to the observed changes. The contribution of the high value large size species (Nile perch and Tilapia) to the commercial catch of Lake Victoria has significantly reduced while that of the low value small size species, Mukene has increased over a ten year (2005-2015)period. The information is intended to update and sensitize the key stakeholders on the status of the Lake Victoria fisheries. In addition, the information provided is expected to guide policy formulation and management planning by the fisheries managers at all levels including the BMUs and Landing Site Management Committees (LSMCs), the Local government fisheries staff and the Directorate of Fisheries Resources. The information is anticipated to create awareness among the lakeside fisher communities to reverse the current trend in fish declines.
    Description: Issue 1, Vol. I (Series name not specified)
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph
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  • 4
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    How to construct a fish smoking kiln (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/19012 | 4230 | 2016-02-19 08:56:12 | 19012 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-13
    Description: As interest increases in fish production, fish farming is on the rise as more fish is produced in ponds, cages and tanks. However not all fish can be sold out and consumed at the same time, in addition to this, different consumers show different preference. Some individua Is tend to prefer smoked fish to fresh and fried fish. Apart from satisfying the different consumer preferences, fish smoking is important because it in creases the self life of fish, there by reducing post harvest losses. It also adds value to the fish and in this way the farmer can fetch more money from farmed products. Although the technology has been around for several years amongst the fishing communities, it is not well known amongst fish farmers. There is need to bring fish fanners on board to know how to construct the smoking kiln through the stapes out lined below.
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph , TRUE
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  • 5
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    The biology and ecology of native non-cichlids in the Victoria and Kyoga lake basins (2021)
    Fisheries Resources Research Institute (FIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/19026 | 4230 | 2020-11-09 02:54:36 | 19026 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-13
    Description: An overview of the biology and ecology of some of the constantly less important commercial species is given below. These included Bagrus docmac, Clarias gariepinus, Protopterus aethiopicus, Labeo victorianus, Barbus spp, Mormyrids, Synodontis spp, and Schilbe intermedius. The stocks of most of these species declined due to over-exploitation and introduction of non-native fishes especially Nile perch. A few of these taxa still survive in the main lake and others in satellite lakes. The current status of these species in the Victoria lake basin is not known but the available information provided some information on some habitat and other requirements of some of these originally important species of the Victoria lake basin.
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
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    Format: 4
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  • 6
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    The relationship between boat size and fish catches in the gillnet fishery of Lake Victoria (2021)
    Fisheries Resources Research Institute (FIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/19248 | 4230 | 2021-02-14 00:50:50 | 19248 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-13
    Description: The number and size composition of gillnets, fishing grounds and thequantity and composition offish catches were related to the size of fishing boat. Theoverall number of gillnets per boat increased from 20.9 ± 2.3 nets in 5-6 m long boatsto 88.6 ± 11.8 nets in 11-12 m long boats. The proportion of large mesh sizes, 〉127mm, also increased from 40.4% in 5-6 m long boats to 100% in boats 〉10 m long. Themajority of large boats, 2:8.0 m long, fished in offshore waters targeting Nile perch,Lates niloticus (L.). Boats 〈8.0 m long fished inshore principally for Nile tilapia,Oreochromis niloticus (L.), although Nile perch was also a major component ofthecatch. Nile tilapia and other fish contributed 31.0-59.9% ofthe catch by weight. Meancatch rates increased from 12.6 ± 1.9 kg in 5-6 m long boats to 78.2 ± 16.4 kg in 1112m long boats. Most Nile perch landed from boats 〈8.0 m long were 〈50 cm TL,smaller than the legal minimum harvest size, whereas 〈17% of Nile perch landed fromlarger boats were 〈50 cm TL. Fish catch is related to the size of boat and this shouldbe considered when formulating management guidelines of the lake's fishery.Promotion of large fishing boats 2:8.0 m and restrictions on the number of boats and/or mesh size of gillnets of smaller boats could increase ecological and socio-economic benefits.
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph
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  • 7
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    Fish species diversity of Kyoga basin lakes (past status) (2021)
    National Fisheries Resource Research Institute | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/19235 | 4230 | 2020-10-12 18:47:11 | 19235 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-13
    Description: Kyoga basin lakes are a very important natural resource for' the communitieswithin the lake basin and beyond. Fisheries of the Kyoga basin lakes enablemillions of poor fishers, processors and traders to diversify their livelihoodstrategies on the basin of income while at the same time supplying vast numbersof poor consumers with essential nutrition. Fish is particularly important for thepoor as it is often the most readily available and affordable source of protein andother micronutrients crucial to a healthy diet. The lakes also generate substantialrevenue to the local governments within their catchment's area. Thus thefisheries of Kyoga basin lakes are a key instrument in poverty eradication and ."food security
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 11
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  • 8
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    Knowledge, perceptions, impacts and role of lakeside communities and institutions in the sustainable control of water hyacinth. (2021)
    Fisheries Resources Research Institute (FIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/19238 | 4230 | 2020-10-17 16:37:57 | 19238 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-13
    Description: The massive water hyacinth mats that covered water bodies in the 1990s had serious social and economic impacts. They affected fishing, transportation, water quality and health of fishing communities as well as production of goods and services of lake-based institutions (commercial establishments). At peak infestations, the communities and institutions were aware of and participated readily in control effort. However, after the major collapse of hyacinth in 1998, some of them relaxed in their control efforts. The status of knowledge, perception, impacts, preparedness and role of the lakeside communities and institutions to control the weed has, therefore, been monitored since the major resurgence of the weed to find out if the lakeside communities and institutions still perceive water hyacinth as a problem and the extent to which they are prepared to sustain control
    Description: FIRRI Technical Document, Draft 2, April 2002
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph
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  • 9
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    Biodiversity conservation and its relationship to aquatic ecosystems (2021)
    National Fisheries Resource Research Institute | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/19231 | 4230 | 2020-08-30 23:22:58 | 19231 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-13
    Description: Biodiversity is the natural biological capital of the earth and represents important opportunities for all nations. It provides goods and services which support human livelihood. The protection of these assets, and their sustainable exploitation offer the means by which humanity can hope to sustain his own well being. Losing of genes within species, species within ecosystems and ecosystems within regions result into disturbances within the environment and reduces the benefits that the system can supply. The United Nations Convention on Biological Diversity (CBD) which came into effect at the Earth's Summit in Rio de Jeneiro in June 1992 defines Biological Diversity as "the variability among living organisms from all sources including inter alia, terrestrial, marine and other aquatic ecosystems and the ecological complexes of which they are part;' this includes diversity within species; between species and ecosystems."
    Description: On Title page: The Ugandan version. PDF also includes Executive Summary.
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
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    Format: 1-8
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  • 10
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    The prevalence, endemicity and epidemiology of Schistosomiasis on the fisherfolk communities of Lake Victoria basin, Uganda (2021)
    National Fisheries Resource Research Institute | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/19246 | 4230 | 2021-02-13 23:19:10 | 19246 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-13
    Description: Schistosomiasis a water-borne socio-economically devastating disease commonly found among lake shore dwellers in areas where it is endemic. The Lake basin supports an estimated 30 million people many of them fisherfolk who directly depend on abundant water resources but are often exposed to water-borne diseases including Schistosomiasis. Other water related intestinal bacterial diseases like the salmonellas and Shigellas, do occur at the Lake Victoria basin but are less frequently reported and probably of less importance in comparison to Schistosomiasis. We investigated the prevalence, endemicity ,and epidemiology of the Schistosomiasis including its obligate intermediate host populations at various sites along the shores of northern Lake Victoria over a four month period during the year 2000. The investigation was carried out with the aim of generating information on the intensity and spread of Schistosomiasis. This information will be used in formulating a Schistosomiasis control programme. When put in place, it will enhance positive development in the health of the fisherfolk communities thus reciprocally improve and promote their productive capacities hence incomes.
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 10
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