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Researchers should cite this work as follows:
Natugonza V, Rwezawula P, Nakiyende H, Bassa S, Nsega M, Mangeni R, Nkalubo W, Seehausen O, Glaser S (2020): Fish species distribution, with emphasis on haplochromine cichlids, in different habitats of the Ugandan portion of Lake Victoria. v1.0. National Fisheries Resources Research Institute. Dataset/Occurrence. http://ipt-uganda.gbif.fr/resource?r=lakevictoria&v=1.0
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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 Non Commercial (CC-BY-NC) 4.0 License.
This resource has been registered with GBIF, and assigned the following GBIF UUID: 0f6fa9ec-7c0c-4cd9-af6a-ae282a0172e9. National Fisheries Resources Research Institute publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF Uganda.
Occurrence; Lake Victoria; haplochromine cichlids; cage aquaculture; Observation
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Lake Victoria, Uganda
|Bounding Coordinates||South West [-0.978, 31.432], North East [0.544, 34.014]|
Haplochromine cichlids, and other few fish taxa from Lake Victoria, Uganda
|Genus||Astatotilapia, Enterochromis, Gaurochromis, Haplochromis, Haplochromis, Harpagochromis, Labrochromis, Lipochromis, Lithochromis, Mbipia, Neochromis, Neochromis/mbipia, Paralabidochromis, Paralabidochromis/Labrochromis, Platytaeniodus, Prognathochromis, Prognathochromis, Psammochromis, Ptyochromis, Pundamilia, Yssichromis, Yssichromis|
|Species||Astatoreochromis alluaudi, Astatotilapia barbarae, Bagrus docmak, Brycinus jacksonii, Brycinus sadleri, Clarias gariepinus, Coptodon zillii, Enterochromis antleter, Enterochromis bicolor, Enterochromis cinctus, Enterochromis coprologus, Enterochromis katunzii, Enterochromis paropius, Enteromius perince, Gaurochromis empodisma, Gnathonemus longibarbis, Gnathonemus victoriae, Haplochromis lividus, Haplochromis ishmaeli, Harpagochromis altigens, Harpagochromis cavifrons, Harpagochromis howesi, Harpagochromis pachycephalus, Harpagochromis serranus, Harpagochromis thereuterion, Hippopotamyrus grahami, Labeo victorianus, Labeobarbus altianalis, Lates niloticus, Mastacembelus frenatus, Mbipia mbipi, Momyrus kannume, Neochromis greenwoodi, Oreochromis leucostictus, Oreochromis niloticus, Paralabidochromis flavus, Paralabidochromis suavagei, Paralabidochromis chilotes, Paralabidochromis victoriae, Prognathochromis dentex, Prognathochromis perrieri, Protopterus aethiopicus, Psammochromis aelocephalus, Psammochromis riponianus, Ptyochromis fischeri, Ptyochromis xenognathus, Pundamilia azurea, Pundamilia igneopinnis, Pundamilia macrocephala, Pundamilia pundamilia, Rastrineobola argentea, Schilbe intermedius, Synodontis afrofischeri, Synodontis victoriae, Yssichromis argens, Yssichromis fusiformis, Yssichromis heusinkveldi, Yssichromis laparogramma, Yssichromis pyrrhocephalus|
The project aimed at investigating dynamics in the ecology and fisheries of Lake Victoria in relation to cage aquaculture development.
|Title||CNH-L: The Potential for Aquaculture in Lake Victoria and Implications for Wild Fisheries and Fish Commodity Markets|
|Funding||This project was funded by a National Science Foundation (NSF) grant to the University of Denver and the Lake Victoria Fisheries Organization (LVFO).|
|Study Area Description||The survey was carried out in both the Northern portion of Lake Victoria, Uganda.|
|Design Description||The study was designed to cover major habitats of haplochromine cichlids in the Ugandan portion of Lake Victoria. The habitats include rocky (only for gill netting), sandy, muddy, and vegetated areas. Also, sites near fish cage installations were identified and sampled to get an indication of impact of cage aquaculture on fish distribution.|
The personnel involved in the project:
Bottom trawling and gillnetting were carried out at selected stations, with varying habitat characteristics, in 2017 using the research vessel R.V. Hammerkop and graded monofilament/multifilament nets, respectively. For the bottom trawling, hauls of 30 minutes duration were taken using a 25.4 mm cod-end stretched mesh trawl net in the various grids (see LVFO 2007 for standard operating procedures), towed at 3.4 knots. For gillnetting, two fleets of graded monofilament gillnets of mesh size 0.75”, 1.00”, 1.25”, 1.50” and 2.00” were soaked and retrieved at 30 minute to two hour intervals. On retrieval, fish were removed according to mesh size, separated into labelled buckets filled with water and transported back to the shore or research vessel (for the trawl survey) for further processing. At the shore or aboard the research vessel, identical fish species in each bucket were lumped together. Photographs of live specimens were taken using a digital camera. The left side of each live fish was photographed inside a photo cuvette that had a colour bar and label attached to its background using masking tape and was filled with water (up to ¾ of total volume). The rare and unique species were photographed first before the other specimens in the rest of the catch. After taking the photographs, the fish specimens were euthanized using a solution of MS-222 or clove oil, tagged, and fin clips and tissue samples obtained for genetics and stable isotopes respectively. For DNA samples, fin clips were obtained from the right pectoral fin of individuals of unidentified fish species and placed into plastic vials filled with 99% ethanol solution, and sent to Switzerland (Eawag) for full genome sequencing and further identification. Fish species that could not be identified to species level were given cheironyms.
|Study Extent||The study covered parts of the Northern Lake Victoria, Uganda, between April and August 2017.|
Method step description:
- Photos were taken to facilitate identification of fish specimens, and identification of fish was done by an expert (Ole Seehausen) with over 30 years’ experience in taxonomy of Lake Victoria fishes, especially haplochromine cichlids .