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  • Fisheries  (13)
  • Chemical Engineering
  • GENERAL
  • Inorganic Chemistry
  • Jinja, Uganda  (13)
  • 2020-2022  (13)
  • 1955-1959
  • 1940-1944
  • 1
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    The relationship between boat size and fish catches in the gillnet fishery of Lake Victoria, Uganda (2021)
    Lake Victoria Fisheries Research Project | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/4954 | 424 | 2011-09-29 15:39:55 | 4954 | Lake Victoria Fisheries Organization
    Details
    Publication Date: 2021-07-07
    Description: The number and size composition of gillnets, fishing grounds, and the quantity and composition of fish catches were related to the size of fishing boat. The overall number of gillnets per boat increased from 20.9 + or - 2.3 nets in 5-6 m long boats to 88.6 + or - 11.8 nets in 11-12 m long boats. The proportion of large mesh sizes, + or more than 127 mm, also increased from 40% in 5-6 m long boats to 100% in boats longer than 10 m. Fish catches are related to the size of boat and this should be considered when formulating management guidelines of the lake's fishery. Promotion of large fishing boats 8 m or longer and restriction on the number and/or mesh size of gillnets of smaller boats could increase ecological and socio-economic benefits.
    Description: Lake Victoria Fisheries Research Project Phase II
    Description: LVFRP/TECH/99/07
    Keywords: Biology ; Fisheries ; Information Management ; Africa ; Uganda ; stock assessment ; data collection ; data report ; Lates niloticus ; Oreochromis niloticus
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 63-77
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  • 2
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    Current status of the fish stocks of Lake Victoria (Uganda) (2021)
    Lake Victoria Fisheries Research Project | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/4951 | 424 | 2011-09-29 15:40:31 | 4951 | Lake Victoria Fisheries Organization
    Details
    Publication Date: 2021-07-07
    Description: A total of 457 hauls were taken during experimental bottom trawl surveys in the Uganda sector of Lake Victoria between November 1997 and June 1999 to estimate composition, distribution and abundance of the major fish species in waters 4-60 m deep. Fifteen fish groups were caught with Nile perch, Lates niloticus (L.), constituting 94% by weight. Haplochromines and L. niloticus occurred in all areas sampled, while Nile tilapia, Oreochromis niloticus (L.) and other tilapiines were restricted to waters 30 m deep or less. The mean trawl catch rate in the zone where artisanal fishermen operate (i.e. in waters less deep than 30 m was 165 kg hr, of which 93.6% comprised L. niloticus. Species diversity and relative abundance decreased with increasing water depth.
    Description: Lake Victoria Fisheries Research Project Phase II
    Description: LVFRP/TECH/99/07
    Keywords: Biology ; Fisheries ; Information Management ; Africa ; Uganda ; Kisumu ; stock assessment ; data collection ; data report
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 10-25
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  • 3
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    Fish stock assessment (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/19337 | 4230 | 2020-09-07 21:44:19 | 19337 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-06-25
    Description: Fisheries are based on stocks of wild animals living in their natural environment stock is a sub-set of one species having the same growth and mortality parameters, and inhabiting a particular geographic area and has little connection with adjacent groups. The fish stocks are affected by man's activities and the success of the fisheries depends critically on the state of the fish stocks. Decision-makers need scientific advice about the state of the fish stocks. The science of stock assessment is concerned with provision of this advice
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
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  • 4
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    A note on stock parameters: mortality and growth (2021)
    Agricultural development project fishery survey | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/19924 | 4230 | 2021-02-14 01:13:53 | 19924 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-05
    Description: The Kyoga fisheries has been over-exploiting the stocks ofboth major species by means of harmful fishing gears. Sincethere has been some success in the removal of gears such asseines, cast nets and small-meshed gillnets from the lake, itis of interest to know how rapidly the fish stocks would beable to recover and provide better yields.
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph
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  • 5
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    The ADP/FS catch-assessment plan for Kyoga lakes: Resumption of statistical data collection by the field staff (2021)
    Agricultural Development Project | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/19925 | 4230 | 2020-10-26 05:25:33 | 19925 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-05
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 9
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  • 6
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    Report of the catch assessment survey: fishery survey of Kyoga Lakes August 1990 - March 1991 (2021)
    Agricultural Development Project | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/20521 | 4230 | 2016-04-22 09:02:19 | 20521 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-10
    Description: This report presents the information obtained during catch assessment surveys made by the ADP Fishery Survey of Lake Kyoga and Lake Kwania between August 1990 and July 1991. It supersedes previous interim reports on these surveys.The Kyoga lakes had not been surveyed in a long time. Information on the state of the stocks was largely confined conclusions drawn from data collected along the southern shore of L.Kyoga proper. The effect of harmful/illegal gear types on the stocks was not documented.Part I provides a description of the survey. Part II comprises a review of the fishing strategies. Parts III and IV present the principal results obtained on L.Kyoga and L.Kwania. Part V presents a discussion of the main conclusions.
    Description: Interim report published in Jinja, November 1991, revised to cover survey to July 1991 in Haarlem, February 1992.
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 24
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  • 7
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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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  • 8
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    Frame survey (census of boats and fishing gear) Lake Kyoga and Lake Kwania (Uganda), May-June 1990 (2021)
    Agricultural Development Project | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/20759 | 4230 | 2016-06-12 13:18:12 | 20759 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-12
    Description: The census of a fishing industry is called a frame survey. This is a rather comprehensive term, because there are many aspects of a fishery which one might wish to know. This is illustrated by the report on the partial census executed by the ADP/FS on the southern landings of L.Kyoga during December 1988, which deals with many socio-economic aspects of fishermen's households.
    Description: Agricultural Development Project
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 23
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  • 9
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    Clarias studies (2021)
    Uganda Freshwater Fisheries Research Organization | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/19941 | 4230 | 2020-08-30 23:46:32 | 19941 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-05
    Description: This investigation deals broadly with some selected aspects ofthe biology and ecology of most of the available clariid species in various water bodies in Uganda. The programme which was initiated and commenced in March 1976 was prompted by a number of factors among which the following are considered most important
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
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  • 10
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    A preliminary report on some aspects of the biology of Clarias mossambicus Peters in the Lake Victoria basin (2021)
    Uganda Freshwater Fisheries Research Organisation | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/19942 | 4230 | 2021-02-14 01:53:43 | 19942 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-05
    Description: Clarias mossambicus Peters (Pisces: Clariidae) is a relatively common catfish in East Africa exhibiting a ubiquitous distribution in most lakes, rivers, streams and swamps (GREENWOOD, 1966). The fish in many localities supports important fisheries and thus contributes substantially to the commercial fishing industry.
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
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