The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 595 records.
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
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Researchers should cite this work as follows:
Olokotum M (2021): Fish species occurrences mobilized from various Environmental Impact Assessments. v1.2. National Fisheries Resources Research Institute. Dataset/Occurrence. http://ipt-uganda.gbif.fr/resource?r=fish_consultant_data&v=1.2
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The publisher and rights holder of this work is National Fisheries Resources Research Institute. This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.
This resource has been registered with GBIF, and assigned the following GBIF UUID: 5764708e-2a95-4d95-9447-2ed8a3bc46bd. National Fisheries Resources Research Institute publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF Uganda.
Occurrence; Fish; Freshwater; Biodiversity; Uganda; Environmental Impact Assessment (EIA); Observation
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|Bounding Coordinates||South West [-1.626, 29.465], North East [2.877, 32.673]|
All fishes encounter were identified to genus and species levels
|Genus||Astatoreochromis, Haplochromis, Labeo, Labeobarbus, Labeobarbus/Enteromius, Lacustricola, Leptocypris, Schilbe, Synodontis|
|Species||Alestes baremoze, Amphilius jacksonii, Astatoreochromis alluaudi, Auchenoglanis occidentalis, Bagrus bajad, Bagrus docmak, Brycinus macrolepidotus, Brycinus nurse, Brycinus nurse, Brycinus sadleri, Clarias gariepinus, Clarias liocephalus, Clarias alluaudi, Coptodon zillii, Ctenopoma muriei, Engraulicypris bredoi, Enteromius kersternii, Enteromius neumayeri, Enteromius perince, Enteromius jacksonii, Enteromius paludinosus, Garra dembeensis, Gnathonemus longibarbis, Haplochromis aeneocolor, Haplochromis avium, Haplochromis mbipi, Hippopotamyrus grahami, Hydrocynus forskahlii, Hyperopisus bebe, Labeo forskalii, Labeo victorianus, Labeo horie, Labeobarbus altianalis, Labeobarbus somerine, Labeobarbus bynni, Lacustricola kassenjiensis, Lacustricola vitschumbaensis, Lates niloticus, Marcusenius victoriae, Mastacembelus frenatus, Mormyrops anguilloides, Mormyrus kannume, Oreochromis leucostictus, Oreochromis niloticus, Oreochromis variabilis, Oreochromis esculentus, Petrocephalus catostoma, Platypanchax modestus, Pollimyrus nigricans, Pollimyrus petherici, Pollimyrus nigricans, Polypterus senegalus, Protopterus aethiopicus, Raiamas senegalensis, Sarotherodon galilaeus, Schilbe intermedius, Synodontis afrofischeri, Synodontis schall, Synodontis victoriae, Synodontis frontosus, Synodontis nigrita, Thoracochromis wingatii|
Our dataset is mobilized from multiple assessments conducted to monitor conservation projects and assess fish biodiversity as part of Environmental Impact Assessments for hydropower and oil development projects in Uganda. Monitoring was for a conservation project on Lake Victoria. The assessment for hydropower development was on River Kyambura where a small hydropower dam is proposed or under development. The assessments for oil development projects were on Lake Albert or associated rivers in proximity with nearby oil exploration areas, Karuma-Olwiyo transmission lines and water courses traversed by the East African Crude Oil Pipeline (EACOP).
|Title||Fish Biodiversity Assessments for Conservation, Hydropower and Oil development projects|
|Funding||Conservation monitoring assessments were funded by Flora and Fauna International. Environmental Impact Assessments were funded by the agencies responsible for the development projects.|
|Study Area Description||The monitoring covered parts of Lake Victoria. The assessment for hydropower development was on River Kyambura, Western Uganda where a small dam is proposed for hydropower generation. River Kyambura flows to Kazinga channel through Queen Elizabeth National park. The assessments for oil development projects were on Lake Albert and rivers such as Waiga, Waisoke, Victoria Nile, Ayago and Waki. All water bodies in the dataset are lakes Albert and Victoria and rivers Ayago, Kafu, Kagera, Katonga, Kibale, Kyambura, Murchison falls national park, Nabakazi, Sonso, Tangi, Waiga, Waisoke, Waki, Wambabya and Victoria Nile.|
|Design Description||Sampling locations were selected from the areas of influence for the conservation and development projects. Fish sampling was done using a multi gear approach which involved experimental gillnets mesh (1-2.5 inches in rivers set for two hours and 1-8 inches in lakes set overnight), fyke nets, basket and minnow traps, and hook and line rods and a portable electro- fisher. Additional data in a few instances, were obtained from local fishermen on site. Where applicable, efforts were made to include a diversity of habitats in the sampling such as littoral zones, river mouths, deltas and open water.|
The personnel involved in the project:
Sampling description Experimental gillnets of mesh sizes of 1-2.5 inches were used in rivers and were left to fish passively for a period of at least 2hrs. After the two hours, gillnets were retrieved. The fish were counted and weighed. In lakes, gillnets of 1-8 inches, set overnight were used. Ectrofishing, a non –lethal fishing methods was conducted at the site-specific selected habitats. This was conducted using a SUM electrofisher equipped with battery and a 2 m long floating copper cathode. Fyke nets, basket and minnow traps were set in littoral areas of lakes and along the banks of rivers. Upon retrieval, all the catch was identified to species level according to Greenwood (1966). The fish species were counted and weighed.
|Study Extent||The datasets covers lakes Albert and Victoria and rivers Ayago, Kafu, Kagera, Katonga, Kibale, Kyambura, Murchison falls national park, Nabakazi, Sonso, Tangi, Waiga, Waisoke, Waki, Wambabya and Victoria Nile. The monitoring for the conservation area on Lake Victoria was conducted in 2017 and 2018. Lake Victoria. The assessment for hydropower development on River Kyambura was done twice in 2018 and 2019. Most of the other water bodies were sampled once, typical for environmental impact assessments.|
Method step description:
- Sampling Experimental gillnets of mesh sizes of 1-2.5 inches were used in rivers and were left to fish passively for a period of at least 2hrs. After the two hours, gillnets were retrieved. The fish were counted and weighed. In lakes, gillnets of 1-8 inches, set overnight were used. Ectrofishing, a non –lethal fishing methods was conducted at the site-specific selected habitats. This was conducted using a SUM electrofisher equipped with battery and a 2 m long floating copper cathode. Fyke nets, basket and minnow traps were set in littoral areas of lakes and along the banks of rivers. Upon retrieval, all the catch was identified to species level according to Greenwood (1966). The fish species were counted and weighed.
- Identification in the field Taxonomic identification of the fish was made using according to Greenwood (1966).
- Greenwood, P.H. (1966) The fishes of Uganda. Uganda Society, Kampala.