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Composition and abundance of benthic macroinvertebrates in Lake Kyoga system, Uganda

Citation

Pabire G W, Egessa R, Mwebaza-Ndawula L (2022). Composition and abundance of benthic macroinvertebrates in Lake Kyoga system, Uganda. National Fisheries Resources Research Institute. Occurrence dataset https://doi.org/10.15468/3he8de accessed via GBIF.org on 2025-05-13.

Description

This dataset provides occurrence and composition of benthic macro-invertebrates from numerous biodiversity surveys conducted in the Lake Kyoga system, Uganda.

Sampling Description

Study Extent

The datasets present data for surveys conducted between 1999 and 2017.

Sampling

A ponar grab with an open jaw area of 238 cm2 was used to take samples of benthic macroinvertebrates. One to three hauls were taken from each sampling point. When more than one haul was taken, they were mixed to form a composite sample. The bottom type at each point was described from the grabbed contents. This was captured as location remarks. Samples were concentrated and then placed in labeled sample bottles and preserved with 5% formalin solution. In the laboratory, each sample was rinsed with water and then placed on a white flat-bottomed tray. Macro-invertebrates were sorted, and individual taxa identified to the lowest possible taxonomic level using identification keys (Mandahl-Barth, 1954), Pennak, 1953), Merritt and Cummins, 1997, De Moor et al. 2003). All taxa were recorded, and individuals of each taxon enumerated to estimate their densities.

Quality Control

The samples were immediately processed in the field and treated with formalin to keep the organisms of interest intact. To avoid loss of organisms during sample processing, nets with appropriate mesh sizes were used.

Method steps

  1. Collection of the macroinvertebrates In the field, sediment samples were collected using a ponar grab with an open jaw surface area of 238 cm2. At each site, three sediment samples were obtained. The three samples were mixed and concentrated to form one composite sample for each site.
  2. Preserving the samples The composite sample for each site was separately preserved in 5% formalin to maintain the organisms in good condition prior to analysis in the laboratory.
  3. Identification of macroinvertebrates In the laboratory, formalin was rinsed off from each sample and placed in white flat-bottomed trays. Using pairs of forceps, all benthic macro invertebrates were sorted from the sediment and the individual taxa identified to the lowest possible taxonomic level using appropriate identification keys and a dissecting binocular microscope at 4x 25 magnification.

Taxonomic Coverages

Aquatic macroinvertebrates identified to order, class, family, genus, species and subspecies
  1. Ablabesmyia Johannsen, 1905
    rank: genus
  2. Anisoptera (Selys, 1854)
    rank: order
  3. Baetidae
    rank: family
  4. Bellamya Jousseaume, 1886
    rank: genus
  5. Biomphalaria (Preston, 1910)
    rank: genus
  6. Bivalvia
    rank: class
  7. Bulinus (Müller O.F., 1781)
    rank: genus
  8. Byssanodonta d'Orbigny, 1846
    rank: genus
  9. Caenis Stephens, 1835
    rank: genus
  10. Caridina nilotica (P.Roux, 1833)
    rank: species
  11. Ceratopogonidae
    rank: family
  12. Chaoborus A.A.H.Lichtenstein, 1800
    rank: genus
  13. Chironomidae
    rank: family
  14. Chironomus Meigen, 1803
    rank: genus
  15. Clinotanypus Kieffer, 1913
    rank: genus
  16. Clitellata
    rank: class
  17. Cloeon Leach, 1815
    rank: genus
  18. Coelatura cridlandi G. Mandahl-Barth, 1954
    rank: species
  19. Coelatura hauttecoeuri kyogae G. Mandahl-Barth, 1954
    rank: subspecies
  20. Coelatura monceti (J.R. Bourguignat, 1883)
    rank: species
  21. Coleoptera
    rank: order
  22. Corbicula
    rank: genus
  23. Corbicula fluminalis africana (F.Krauss, 1848)
    rank: subspecies
  24. Corixidae
    rank: family
  25. Cryptochironomus Kieffer, 1918
    rank: genus
  26. Ecnomidae Ulmer, 1903
    rank: family
  27. Ecnomus McLachlan, 1864
    rank: genus
  28. Elmidae Curtis, 1830
    rank: family
  29. Gabbia Tryon, 1865
    rank: genus
  30. Gabbiella humerosa von Martens, 1879
    rank: species
  31. Hirudinea
    rank: class
  32. Laevicaudata Linder, 1945
    rank: order
  33. Lanistes carinatus
    rank: species
  34. Leptoceridae
    rank: family
  35. Libellulidae
    rank: family
  36. Melanoides (Olivier, 1804)
    rank: genus
  37. Melanoides tuberculata (O. F. Müller, 1774)
    rank: species
  38. Mutera Scopoli, 1777
    rank: genus
  39. Ostracoda
    rank: class
  40. Palpomyia Meigen, 1818
    rank: genus
  41. Palpomyia tibialis (Meigen, 1818)
    rank: genus
  42. Pisidium pirothi Jickeli, 1881
    rank: species
  43. Povilla adusta Navás, 1912
    rank: species
  44. Procladius Skuse, 1889
    rank: genus
  45. Sphaerium Scopoli, 1777
    rank: genus
  46. Tanypodinae
    rank: genus
  47. Tanypus Meigen, 1803
    rank: genus
  48. Tanytarsus Wulp, 1874
    rank: genus
  49. Trichoptera
    rank: order
  50. Trombidiformes
    rank: order

Geographic Coverages

The Lake Kyoga system in Uganda comprises lakes Kyoga and several small lakes that form the Lake Kyoga system. The water bodies in the system are described in detail in Mwanja et al (2001).

Bibliographic Citations

  1. De Moor IJ, Day JA and de Moor FC (Eds) (2003b) Guide to Freshwater Invertebrates of South Africa. Vol. 8: Insect II. Hemiptera, Megaloptera, Neuroptera, Trichoptera & Lepidoptera, 208Pg. -
  2. Mendahl-Barth, G. (1954). The Freshwater Mollusks of Uganda and Adjacent Territories. Annls Mus. r. Congo Belge, 8°, Zoology, 32: 1–206. -
  3. Merritt, R. W., & Cummins, K. W. (1997). An introduction to the aquatic insects of North America (3rd ed.). Dubuque: Kendall/Hunt Publishing Co. 720 Pg. -
  4. Mwanja, W. W., Armoudlian, A. S., Wandera, S. B., Kaufman, L., Wu, L., Booton, G. C., & Fuerst, P. A. (2001). The bounty of minor lakes: the role of small satellite water bodies in evolution and conservation of fishes in the Lake Victoria Region, East Africa. Hydrobiologia, 458(1), 55-62. -
  5. Pennak, R.W. 1953. Fresh-water Invertebrates of the United States. John Wiley & Sons, New York. 769pg. -
  6. Pennak, R. W, (1953). Fresh-water invertebrates of the United States. 2nd Edition, John Wiley & Sons, New York, 803 Pages. -

Contacts

Gandhi Willy Pabire
originator
position: Research Technician
National Fisheries Resources Research Institute (NaFIRRI)
Nile Crescent, Plot 39/45, Jinja
Jinja
343
UG
Robert Egessa
originator
position: Research Officer
National Fisheries Resources Research Institute (NaFIRRI)
Nile Crescent, Plot 39/45, Jinja
Jinja
343
UG
email: robert.egessa@gmail.com
Lucas Mwebaza-Ndawula
originator
position: Senior research officer
National Fisheries Resources Research Institute (NaFIRRI)
Nile Crescent, Plot 39/45, Jinja
Jinja
343
UG
Gandhi Willy Pabire
metadata author
position: Research Technician
National Fisheries Resources Research Institute (NaFIRRI)
Nile Crescent, Plot 39/45, Jinja
Jinja
343
UG
Laban Musinguzi
user
position: Research Officer
National Fisheries Resources Research Institute (NaFIRRI)
Nile Crescent, Plot 39/45, Jinja
Jinja
343
UG
Telephone: 0775701126
Laban Musinguzi
administrative point of contact
position: Research Officer
National Fisheries Resources Research Institute (NaFIRRI)
Nile Crescent, Plot 39/45, Jinja
Jinja
343
UG
Telephone: 0775701126
email: musinguzilaban@gmail.com
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