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  • 1
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    Environment monitoring technical report for the SON cage fish culture site at Bugungu, Napoleon Gulf, northern Lake Victoria, November 2013 (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/17183 | 4230 | 2016-02-19 11:41:10 | 17183 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-10
    Description: Source of the Nile Fish farm (SON) is located at Bugungu area in Napoleon Gulf, northern Lake Victoria. The proprietors of the farm and the National Fisheries Resources Research Institute (NaFIRRI) have an established collaborative arrangement where NaFIRRI provides technical back‐stopping to enable quarterly environment monitoring of the cage site as a mandatory requirement of the National Environment Management Authority (NEMA). The agreed study areas are selected physical‐chemical factors (water depth, water transparency/secchi depth, water temperature, dissolved oxygen, pH, conductivity, and nutrient status), algal community (including primary production), aquatic invertebrates (zooplankton and macro‐benthos) and the fish community. This report presents field observations made during the fourth quarter (October‐December) field survey undertaken during December 2013; along with scientific interpretation and discussion of the results in reference to possible impacts of the cage facility to the water environment quality and aquatic biota.
    Keywords: Aquaculture
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 42
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  • 2
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    Environment monitoring technical report for the SON cage fish culture site at Bugungu, Napoleon Gulf, northern Lake Victoria, June 2013 (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/17186 | 4230 | 2016-02-19 09:00:47 | 17186 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-10
    Description: Source of the Nile Fish farm (SON) is located at Bugungu area in Napoleon Gulf, northern Lake Victoria. The proprietors of the farm requested NaFIRRI to provide technical assistance to undertake regular environment monitoring of the cage site as a mandatory requirement under the NEMA conditions. NAFIRRI agreed to undertake regular environment surveys in the cage area covering selected physical‐chemical factors (water column depth, water transparency, water column temperature, dissolved oxygen, pH, conductivity, nutrient status), algal aquatic invertebrates (micro‐invertebrates/zooplankton and macro‐benthos) and fish communities. During the year 2013, it was agreed with management to undertake quarterly environment monitoring surveys. However, the first quarter (January‐March 2013) survey was missed out due to late decision. The present report therefore covers the survey taken during the second quarter (April‐June 2013). Results/observations made are presented in this technical report along with a scientific interpretation and discussion of the results with reference to possible impacts of the cage facilities to the water environment and aquatic biota.
    Keywords: Aquaculture ; Source of the Nile Fish Farm (SON)
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 46
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  • 3
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    Technical report on the environmental monitoring of the cage area at the Source of the Nile (SON) Fish Farm for quarter 2: April-June 2011 (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/17181 | 4230 | 2016-02-19 11:02:51 | 17181 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-10
    Description: Source of the Nile Fish farm (SON) is located at Bugungu area in Napoleon Gulf, northern Lake Victoria. The proprietors of the farm requested for technical assistance of NaFIRRI to undertake regular environment monitoring of the cage site as is mandatory under the NEMA conditions. Thus, NAFIRRI undertakes quarterly environment surveys in the cage area covering selected physical-chemical factors i.e. water column depth, water transparency, water column temperature, dissolved oxygen, pH and conductivity; nutrient status, algal and invertebrate communities (zooplankton and macro-benthos) as well as fish community. The first environmental survey was undertaken in February 2011. Results/observations made during the second quarter (April-June 2011) field survey are presented in this technical report along with a scientific interpretation and discussion of the results with reference to possible impacts of the cage facilities on the water environment and the different aquatic biota in and around the cages including natural fish communities.
    Keywords: Aquaculture ; Environment
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 38
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  • 4
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    Technical report on the environmental monitoring of the cage area at the Source of the Nile (SON) Fish Farm for quarter 1: January-March 2015 (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/17361 | 4230 | 2016-02-19 10:00:26 | 17361 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-11
    Description: Source of the Nile (SON) fish farm is located at Bugungu in Napoleon Gulf, northern Lake Victoria. The proprietors of the farm have a collaborative arrangement with NaFIRRI, a lead agency in fisheries research and innovations, to undertake quarterly environment monitoring surveys at the farm. The agreed areas for monitoring are: selected physico-chemical parameters (i.e. temperature, dissolved oxygen, pH, conductivity, secchi depth); total suspended solids (TSS); nutrient status; BOD5) and biological parameters (i.e. algae, zooplankton, macro-benthos and fish). Water and biological samples as well as field measurements were taken at 3 sites: within the fish cage rows (WIC/experimental), upstream (USC/control) and downstream (DSC) of the fish cages. The key research question was: Does fish cage operations have impacts on the water quality and aquatic biota in and around the SON cage fish farm? The environment monitoring surveys were projected to cover a full calendar year (i.e. from January to December). The first surveys were undertaken in 2011 and have continued on an annual basis since then. The present report presents field observations made for the fourth quarter survey undertaken in November 2014 and provides a scientific interpretation and discussion of the results with reference to possible impacts of the cage facilities to the water environment and the different aquatic biota in and around the fish cage site.
    Keywords: Aquaculture
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 36
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  • 5
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    Technical report on the environmental monitoring of the cage area at the Source of the Nile (SON) Fish Farm for quarter 2: April-June 2015 (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/20301 | 4230 | 2016-03-05 18:03:06 | 20301 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-09
    Description: Source of the Nile Fish farm (SON) is located at Bugungu area in Napoleon Gulf, northern LakeVictoria. The proprietors of the farm have a collaborative arrangement with NaFIRRI to undertake quarterly environment monitoring of the cage site as is mandatory under the NEMA conditions. The monitoring surveys cover selected physical-chemical factors i.e. water column depth, water transparency, water column temperature, dissolved oxygen, pH and conductivity; nutrient status, algal and invertebrate communities (micro-invertebrates/zooplankton and macroinvertebrates/macro-benthos) as well as fish community. The second quarter survey for the calendar year 2015, which is the subject of this report, was undertaken in June 2015.Results/observations made are presented in this technical report along with a scientificinterpretation and discussion of the results with reference to possible impacts of the cage facilities to the water environment and aquatic biota.
    Keywords: Aquaculture ; Environment
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 56
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  • 6
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    Technical report on the environmental monitoring of the cage area at the Source of the Nile (SON) Cage Fish Farm for quarter 4: October-December 2015 (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/20249 | 4230 | 2016-03-01 14:17:26 | 20249 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-08
    Description: Source of the Nile (SON) Cage Fish farm is located at Bugungu in Napoleon Gulf, northern Lake Victoria, near the headwaters of the River Nile. NaFIRRI has, through a Public-Private collaborative partnership with SON management, undertaken quarterly monitoring of the cage fish farm since 2011. The objective of the environment monitoring is to track possible environment and biological changes as a result of fish cage operations in the area. The agreed study areas cover selected physical-chemical parameters i.e. water depth, transparency, column temperature, dissolved oxygen, pH and conductivity; nutrient status; and biological parameters i.e. algae, zooplankton, macro-benthos and fish communities. The fourth quarter survey, which is the subject of this report was undertaken during December 2015. Results/observations made are presented in this technical report along with a scientific interpretation and discussion of the results with reference to possible impacts of the cage facilities to the water environment and aquatic biota.The present report presents field observations made for the fourth quarter survey undertaken in December 2015 and provides a scientific interpretation and discussion of the results with reference to possible impacts of the cage facilities to the water environment and the different aquatic biota in and around the fish cage site.
    Keywords: Aquaculture ; Environment
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 42
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  • 7
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    Manual for production of live feed (Moina) for African catfish fry (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/20321 | 4230 | 2016-03-08 12:42:14 | 20321 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-09
    Description: The African catfish (Clarias gariepinus) is a commercially farmed fish in Uganda, second in importance after the Nile tilapia (Oreochromis niloticus). This catfish has gained rapid popularity in aquaculture because of its faster growth and higher pond yields attaining average weight of over one kg with pond yields as high as 3.0 kg/m2 in six months compared to an average weight of 500g and pond yields of 1.2 kg.m2 for the Nile tilapia
    Keywords: Aquaculture
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 14
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  • 8
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    Technical report on the environmental monitoring of the cage area at the Source of the Nile (SON) Cage Fish Farm for quarter 1: January-March 2016 (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/20643 | 4230 | 2018-10-21 09:46:56 | 20643 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-11
    Keywords: Aquaculture ; Environment
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 47
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  • 9
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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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  • 10
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    Technical report on the environmental monitoring of the cage area at the Source of the Nile (SON) Fish Farm for quarter 4: October-December 2011 (2021)
    National Fisheries Resources Research Institute (NaFIRRI) | Jinja, Uganda
    In:  http://aquaticcommons.org/id/eprint/20070 | 4230 | 2016-02-23 09:46:15 | 20070 | National Fisheries Resources Research Institute, Uganda
    Details
    Publication Date: 2021-07-07
    Description: Source of the Nile Fish farm (SON) is located at Bugungu area in Napoleon Gulf, northern Lake Victoria. The proprietors of the farm requested for technical assistance of NaFIRRI to undertake regular environment monitoring of the cage site as is mandatory under the NEMA conditions. As the SON is a key collaborator/client of the institute, NAFIRRI agreed to undertake the assignment subject to facilitation by the client. The institute agreed to conduct quarterly surveys of key environmental parameters at the site including selected physical-chemical and biological factors, nutrient status, column depth, water transparency and sedimentation. Samples and field measurements were to be taken at 3 sites: within and/or close to the fish cages (WIC), upstream (USC) and downstream (DSC) of the cages. The first environmental monitoring survey was undertaken in February 2011; the second in May 2011 and the third in September 2011. The surveys cover physical-chemical parameters, nutrient status, invertebrate and fish communities. The present report presents field observations made for the fourth quarter survey undertaken in November 2011 and provides a scientific interpretation and discussion of the results with reference to possible impacts of the cage facilities to the water environment and the different aquatic biota at and around the cage site including natural fish communities.
    Keywords: Aquaculture ; Environment
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 38
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