Fish Biodiversity Assessments for Conservation and Hydropower Developments
Citation
Olokotum M (2022). Fish Biodiversity Assessments for Conservation and Hydropower Developments. Version 1.2. National Fisheries Resources Research Institute. Occurrence dataset https://doi.org/10.15468/js65th accessed via GBIF.org on 2024-08-15.Description
This data is from two surveys conducted to monitor development of small hydropower development projects and assess fish biodiversity as part of Environmental Impact Assessment to establish a conservation area. The monitoring for a hydropower development project was on River Kagera where a small hydropower dam is under development. The second survey was in Kiyanja/Kyazanga wetland in Lwengo district within the Lake Victoria basin.Sampling Description
Study Extent
The datasets cover River Kagera section and Kiyanja/Kyazanga wetland in the Lake Victoria basin. The assessments were conducted in March to April 2020 and August 2020 respectively.Sampling
On river Kagera, sampling locations were selected from zones of direct influence of the development hydropower plant. In addition, areas further upstream and downstream away from the development were also sampled. Fish sampling was done using a multi gear approach. Traps, gillnets (1-2.5 inches) and an electrofisher were used. Fishermens' catches from Known localities were also useful in gathering fish observations. Experimental gillnets of mesh sizes of 1-2.5 inches were used in the river at intervals of at least two hours. Electrofishing was conducted at selected habitats. This was conducted using a SUM electrofisher equipped with a battery and a 2 m long floating copper cathode. Minnow traps were set in littoral areas along the riverbanks. In the wetland, only electrofishing was conducted at the selected sites following guidance. Upon retrieval, all the catch was identified to species level according to Greenwood (1966). The fish species were counted and weighed.Quality Control
Appropriate fish identification guides were used.Method steps
- Taxonomic identification of the fish was made according to Greenwood (1966).
Taxonomic Coverages
All fish were identified to genus and species
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Astatoreochromis alluaudirank: species
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Astatotilapiarank: genus
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Bagrus docmakrank: species
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Clarias gariepinusrank: species
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Clarias liocephalusrank: species
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Ctenopoma murieirank: species
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Enteromius apleurogrammarank: species
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Enteromius jacksonirank: species
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Enteromius kersteniirank: species
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Gnathonemus longibarbisrank: species
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Hapagochromisrank: genus
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Haplochromisrank: genus
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Hippopotamyrus grahamirank: species
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Labeo victorianusrank: species
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Labeobarbus altianalisrank: species
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Lacustricola pumilusrank: species
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Mastecembelus frenatusrank: species
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Oreochromis leucostictusrank: species
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Oreochromis niloticusrank: species
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Petrocephalus catastomarank: species
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Pollimyrus nigricansrank: species
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Protopterus aethiopicusrank: species
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Pseudocrenilabrus multicolorrank: species
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Schilbe intermediusrank: species
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Synodontis afrofischerirank: species
Geographic Coverages
The dataset covers River Kagera in Isingiro district (western Uganda) and a semi-permanent wetland in Lwengo district (western Uganda).
Bibliographic Citations
- Greenwood, P.H. (1966) The fishes of Uganda. Uganda Society, Kampala. -
Contacts
Mark Olokotumoriginator
position: Research officer
National Fisheries Resources Research Institute
Jinja
343
UG
Mark Olokotum
metadata author
position: Research officer
National Fisheries Resources Research Institute
Jinja
343
UG
Laban Musinguzi
user
position: Research Officer
email: labanmusinguzi@firi.go.ug
Laban Musinguzi
administrative point of contact
position: Research officer
National Fisheries Resources Research Institute
Jinja
343