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  • Fisheries  (357)
  • ASTROPHYSICS
  • Biology
  • Warrington, UK  (245)
  • National Fisheries Resources Research Institute (NaFIRRI)
  • 11
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    Cage culture of Nile Tilapia (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/20697 | 4230 | 2016-05-31 09:24:27 | 20697 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-12
    Description: Nile tilapia (oreochromis niloticus) a fish introduced into Lake Victoria to boost the fishery industry after the Nile perch lates niloticus fed on the native tilapiine oreochromis esculentus and Oreochromis viabillis to almost extinction has been proposed to be cultured in the Lake Victoria. The fact sheet explains the culture of Nile tilapia in cages in Lake Victoria, Uganda.
    Keywords: Aquaculture ; Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 8
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  • 12
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    Lake Victoria fisheries catch assessment survey (CAS) information June 2006 (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/20718 | 4230 | 2016-06-01 14:52:43 | 20718 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-12
    Description: The National Fisheries Resources Research Institute (NAFIRRI), the Department of Fisheries Resources (DFR) and the districts in and around Lake Victoria jointly conduct Catch Assessment Surveys (CAS) with a major objective of providing information on the magnitude of fish catches in the lake. Fisheries contribute as high as 12% to Uganda's GDP. Catch assessment surveys are some of the avenues used to collect information for monitoring fish population dynamics as well as the magnitude, distribution and trends of fishing effort and fish catches. They are necessary for making sound decisions for the management of Lake Victoria fisheries. This information provides the Catch Per Unit ofEffort (CPUE). The CPUE is used together with frame survey data to estimate total fish catches.
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 8
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  • 13
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    Final report of the fisheries catch assessment survey in the Ugandan waters of Lake Victoria for the May 2014 survey (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/20814 | 4230 | 2016-06-18 08:57:26 | 20814 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-12
    Description: This report presents findings of the CAS conducted in the Ugandan waters of Lake Victoria in December 2015. The results of the previous thirteen harmonized CASs conducted since July 2005 (July, August, September and November 2005; in March, August and December 2006; in March and August 2007; in February and December 2008; March 2010; May 2011 and May 2014) are included to show the emerging trends. The report also presents annual catch estimates for the Ugandan part of the lake from 2005 to 2015. This information together with other fish stock assessment and socio-economic monitoring survey data can now be utilized in the planning and management of the fisheries resources of Lake Victoria. The 2014 CAS results were very vital in the development of the Lake Victoria Fisheries Management Plan 2014.
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 45
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  • 14
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    Socio-economic conditions and challenges of Kyoga lakes fisheries (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/20821 | 4230 | 2016-06-18 09:58:45 | 20821 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-12
    Description: Over the period 2008 to 2010, NaFIRRI carried out a number of socio-economic studies on the Kyoga lakes to provide an update of the socio-economic conditions of the fisheries and also to address specific areas of fisheries socio-economic issues and development concerns. The data collection was conducted using Key informant interviews, questionnaire sample surveys, Focus Group Discussions, secondary data searches and field observations. The objective of this fact sheet is, therefore, to provide key information from these studies for use at national, district, community levels as well as by other interested stakeholders.
    Keywords: Fisheries ; Sociology
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 8
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  • 15
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    Final report of the fisheries catch assessment survey conducted in December 2015 on the Ugandan waters of Lake Victoria (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/20816 | 4230 | 2016-06-18 09:00:50 | 20816 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-12
    Description: This CAS report provides estimates of the quantities of fish landed in the riparian districts sharing the Ugandan waters of Lake Victoria; the monetary value of the fish catches; the contribution of different fish species to the catches; and the trends in fish catch rates, and the monthly catches for the sampled month since the beginning of harmonized CAS activities in July 2005 to December 2015. The report also compares the annual catch and gross beach value of catch landings in 2005, 2006, 2007, 2010, 2014 and 2015. A total of 15 CASs have been undertaken in the Uganda sector of the lake with data gaps in 2009, 2012 and 2013 due to financial constraints. The annual catch estimates for the years 2010, 2011, 2014 and 2015 were based on one sampling covering the rainy season and may not capture changes that could occur in dry season. There is need to include dry season sampling in future surveys.
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 59
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  • 16
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    A report of the Fisheries Catch Assessment Survey in the Ugandan waters of Lake Victoria for the August 2007 survey (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/17389 | 4230 | 2016-03-01 14:07:11 | 17389 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-12
    Description: The monitoring of fish stocks as well as the magnitude, distribution and trends of fishing effort and fish catches is required for sound fisheries resources management. Conducting regular Catch Assessment Surveys (CASs) in Lake Victoria is one of the ways through which the partner states sharing the lake are generating information to contribute to the above process. The EU funded Implementation of a Fisheries Management Plan (IFMP) project for Lake Victoria through the Lake Victoria Fisheries Organisation (LVFO) is supporting the implementation of regionally harmonised CASs in Lake Victoria . The CASs under IFMP are following a statistical design laid down in Standard Operating Procedures (SOPs) agreed by the three partner states of the EastAfrican Community sharing the lake. In the Ugandan part of the lake, the CASs are carried out at 54 fish landing sites selected in the eleven riparian districts sharing the lake. The National Fisheries Resources Research Institute (NAFIRRI), Jinja; the Department of Fisheries Resources (DFR), Entebbe; and the Districts of Busia, Bugiri, Mayuge, Jinja, Mukono, Wakiso, Kampala, Mpigi, Masaka, Kalangala and Rakai jointly conduct the surveys. The CAS enumerators are recruited from the fishing communities and work under direct supervision of subcounty Fisheries Officers. NaFIRRI seeks to continue strengthening the engagement of the Beach Management Units (BMUs) and other fisheries Co-management Institutions in fisheries data collection .
    Description: Implementation of a Fisheries Management Plan (IFMP) Project for Lake Victoria
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 28
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  • 17
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    A report of the fisheries catch assessment surveys in the Ugandan waters of Lake Victoria for November 2005 (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/17387 | 4230 | 2016-03-04 09:11:04 | 17387 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-12
    Description: The fisheries of Lake Victoria have undergone many changes in the recent past which have been characterized by shifts in abundance of different fish Species and changes in fishing effort. Monitoring of the population dynamics as well as the magnitude, distribution and trends of fishing effort and fish Catches is probably more necessary now than ever before for sound management of the fisheries of the lake. This will enable the formulation of appropriate fisheries policies and legislation to ensure that the fisheries are sustainable. One of the avenues to collect information to support the above process is through conducting regular Catch Assessment Surveys (CASs). The EU funded Implementation of a Fisheries Management Plan (IFMP)project for Lake Victoria through the Lake Victoria Fisheries Organization (LVFO) is supporting the implementation of regionally harmonized CASs in Lake Victoria. The CASs under IFMP are following a statistically design laid down in Standard Operating Procedures (SOPs) agreed around the whole lake. In the Ugandan part of the lake, the CASs are carried out at 54 fishlanding sites selected in the eleven districts sharing the lake. They are jointly conducted by the Fisheries Resources Research Institute (FIRRI), Jinja; the Department of Fisheries Resources (DFR), Entebbe; and the Districts of Busia, Bugiri, Mayuge, Jinja, Mukono, Wakiso, Kampala, Mpigi, Masaka, Kalangala and Rakai. The CAS enumerators are recruited from the fishingcommunities and work under direct supervision of sub county Fisheries Officers. It is planned to involve the recently formed Beach Management Units (BMUs) in fisheries data collection when modalities for their roles have been streamlined.
    Description: Implementation of a Fisheries Management Plan (IFMP) Project for Lake Victoria
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 24
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  • 18
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    Poverty within the fisheries: indicators, causes and interventions. Draft 2 (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/17450 | 4230 | 2020-10-20 04:39:17 | 17450 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-12
    Description: The study is prompted by the poverty that has persisted among the fishing communities of Lake Victoria at a time of considerable cash inflow into the fisheries from the development of the fish processing industry. There has been need for an understanding of the poverty and what strategies would be most appropriate for its reduction. This study has attempted torespond to the need by identifying the nature and distribution of the poverty within thefisheries of Lake Victoria, Uganda, the factors responsible for it and the options for povertyreduction intervention.
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 88
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  • 19
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    Management of the nile perch, Lates niloticus, fishery in Lake Victoria in light of the changes in its life history characteristics (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/17460 | 4230 | 2016-02-25 13:01:40 | 17460 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-12
    Description: Nile perch, Lates niloticus Linnaeus, 1758, is apredatory fish of high commercial and recreational value.It can grow to a length of 2 m and a weight of 200 kg. InUganda, Nile perch was originally found only in LakeAlbert and the River Nile below Murchison Falls. Thespecies is, however, widely distributed in Africa,occurring in the Nile system below Murchison Falls, theCongo, Niger, Volta, Senegal and in Lakes Chad andTurkana (Greenwood 1966).
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 65-78
    Format: 321
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  • 20
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    Lake Victoria Fisheries Catch Assessment Surveys (CAS) Information, Uganda 2005-2011 (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/17453 | 4230 | 2020-10-18 18:25:33 | 17453 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-12
    Description: The Partner states of the EAC through the Lake Victoria Fisheries Organization (LVFO) are monitoring exploitation of the fisheries resources of Victoria. LVFO has harmonized fisheries data collection around the lake including collection of information on trends of fishing effort and fish catches through Catch Assessment Surveys (CASs). The data generated by CASs provide Catch per unit effort (CPUE), which together with fishing effort information obtained from regular biannual Frame surveys is used to estimate catches. Data from CASs also provide an index of stock size. The monthly catches in this report, covering the period between July 2005 and December 2008 are estimated using raising factors from the 2008 Frame Survey data while those covering March 2010 and September 2011 are estimated using the 2010 Frame Survey.
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 4
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