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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
    Format: application/pdf
    Format: 1
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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
    Format: application/pdf
    Format: application/pdf
    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
    Format: application/pdf
    Format: application/pdf
    Format: 4
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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
    Format: application/pdf
    Format: application/pdf
    Format: 1-4
    Format: 2
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  • 5
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    The Diversity of algae in the major aquatic systems of the Victoria and Kyoga Lake basin and its implications on ecosystem functioning (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/19219 | 4230 | 2020-09-07 19:19:34 | 19219 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-13
    Description: Algae are microscopic plants in aquatic environments, and inc}ude blue-green algae (Cyanobacteria), green algae (Chlorophytes) diatoms (Bacillariohytes), Cryptophytes and Chrysophytes. Several of these groups co-exist but some may be absent due to environmental limitations existing in a specific water body. Algae are important in the aquatic food chains because algal primary production provi~es the basis for which the aquatic food linkages culminating in the fish production. Several groups of algae in communal or symbiotic association with bacteria mediate many biogeochemical processes, which characterise aquatic habitats, such as nitrogen, carbon, iron, sulphur recycling and consumption of oxygen. However, excess algal production in aquatic ecosystems can lead to deleterious effects, including deterioration in the water quality due to production of phycotoxins, reduced photosynthetic rates due to self-shadding and high BOD due to algal biomass collapse. The health of Lake Victoria is directly related to human impacts on the fisheries, wetland buffers and water quality
    Keywords: Education ; Fisheries
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 11
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  • 6
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    Report of frame survey of the Kyoga basin lakes 2002 (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/19209 | 4230 | 2016-03-04 09:29:49 | 19209 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-13
    Description: A comprehensive Frame survey was carried out in lakes Kwania, Kyoga and the Kyoga basin minor lakes which include Lake Sisina in 2002 (Figure 1). The Frame survey was coordinated by the Department of Fisheries Resources (DFR) assisted by the National Fisheries Resources Research Institute (NAFIRRI) with technical support. The riparian districts through the sub-county fisheries officesand the BMUs provided the enumerators and supervisors. The frame surveycaptured all the important characteristics of the fisheries and facilities supporting the fisheries and thus provides a strong baseline for future reference of management interventions in the basin.
    Description: On title page: THEME 3: Enhancing Integrated Management of Natural Resources PROJECT: Generation of Knowledge and Technologies that Ensure Sustainable Utilization of Fish Stocks (Capture Fisheries) on Lakes Kyoga, Kwania, Bisina, Albert And Albert Nile.
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 15
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  • 7
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    Physical and chemical characteristics of major aquatic ecosystems in the Victoria and Kyoga lake basins (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/19218 | 4230 | 2020-10-20 04:22:02 | 19218 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-13
    Description: The physical-chemical characteristics of any aquatic ecosystem include pH, conductivity, and temperature, water transparency, nutrient and the chlorophyll-a levels. Physical and chemical factors of any ecosystem determine the type and quality of flora present in it and these forms the basis on which the system operates. The elements required in largest amounts for plant productions are carbon, phosphorus, nitrogen, and silicon, which is important for diatoms as a major component of the cell wall. Nutrients may limit algal productivity in the tropics despite the high temperature there allowing rapid nutrient recycling. Nutrients most likely to be limiting African lakes are nitrogen (Tailing & Tailing 1965; Moss 1969; Lehman & Branstrator 1993, 1994) and phosphorus (Melack et al 1982; Kalff 1983) while silicon may limit diatom growth (Hecky & Kilham 1988).
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 6
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  • 8
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    Stakeholders views and recommendations, and References (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/19221 | 4230 | 2021-02-13 23:07:43 | 19221 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-13
    Description: There are diverse stakeholders in Lake Victoria fisheries ranging from boat orgear owners, fishing crew groups, local traders, small and large processors tofishery managers, environmentalists, conservationists, educational institutions todevelopment partners and project coordinators. Many of these cluster stakeholdershave their own interests and solutions to challenges they face or perceive. Gettingall of the stakeholders to think the same about research findings is almostimpossible Therefore, categorising issues based on some of the challengesfacing Lake Victoria fisheries is one way that allows the diversity of stakeholdersto bring out what the identified actors are expected of. A synthesis of findingsfrom stakeholder views and recommendations is thus given under the differentissues.
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 286-321
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  • 9
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    Report of the frame survey of Lake Albert carried out in January 2007 (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/20696 | 4230 | 2016-05-31 09:19:58 | 20696 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-12
    Description: A comprehensive Frame survey was carried out by the National Fisheries Resources Research Institute (NAFIRRI) in Lake Albert in January 2007. The frame survey captured the main characteristics of the fisheries and facilities supporting the fisheries and provides baseline information for reference of other studies as well as management interventions.
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 18
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  • 10
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    The socio-economic aspects of the fishing communities of Lake Victoria, Uganda (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/20694 | 4230 | 2016-05-31 09:14:26 | 20694 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-12
    Description: A baseline survey of the fishing communities wasconducted in 2005/06 as one of the main studies underthe Socio-economic Research and Monitoring WorkingGroup on Lake Victoria. The overall objective of thesurvey was to provide a deeper understanding of thebroad socio-economic characteristics and well being ofthe different stakeholder groups immediately dependenton the Lake Victoria fisheries. An understanding of socioeconomic status of the fishery primary stakeholders, who include fishers, artisanal processors and traders, isessential for any subsequent periodic evaluation ofdevelopment. During the survey, a total of 1,235respondents were interviewed, at 34 landing sites in allthe Ugandan districts on Lake Victoria.The purpose of this fact sheet is to provide informationon the fish landing beaches, people involved in fisheries,their livelihood activities and facilities available to them.
    Keywords: Fisheries ; Sociology
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 8
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