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Macroinvertebrates of Lake Wamala, 2012-2013

Citation

Pabire W G, Musinguzi L (2020). Macroinvertebrates of Lake Wamala, 2012-2013. National Fisheries Resources Research Institute. Occurrence dataset https://doi.org/10.15468/vbdsc6 accessed via GBIF.org on 2023-12-11.

Description

This resource is composed of occurrences and abundance of macroinvertebrates collected in Lake Wamala in 2012 and 2013

Sampling Description

Study Extent

Data was collected between 2012 and 2013 is representative sites, covering near shore, offshore, and river mouths habitats.

Sampling

At each site, a sample of macroinvertebrates was collected using a Ponar grab (238 cm2 open-jaw area). Three vertical hauls of sediment at each site were taken. These were mixed to form one composite. Each composite sample was sieved through a 400µm nitex mesh to concentrate the sample. All the samples were placed in labeled sample bottles and preserved with 5% sugar formalin solution for taxonomic identification and enumeration in the laboratory.
In the laboratory, the formalin-fixed benthic macroinvertebrate samples were rinsed by tap water to remove preservatives before the sorting of the organisms. All the animals were separated, counted, and identified to the smallest taxonomic level under a dissecting microscope. Appropriate taxonomic keys were used (Mandahl-Barth, 1954; Pennak, 1953; Merritt & Cummins, 1997). Numerical abundance (individuals per square metre, Ind.m-2) was estimated for each taxon.

Quality Control

In the field, samples were immediately treated with formalin to keep the organisms intact. To avoid loss of organisms during sample processing, appropriate mesh sizes during sieving. Appropriate taxonomic keys were used.

Method steps

  1. 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.

Taxonomic Coverages

Macro-invertebrates taxa identified to class, family and genus.
  1. Ablabesmyia
    rank: genus
  2. Bulinus
    rank: genus
  3. Caenis
    rank: genus
  4. Ceratopogonidae
    rank: family
  5. Chaoborus
    rank: genus
  6. Chironomidae
    rank: family
  7. Chironomus
    rank: genus
  8. Clinotanypus
    rank: genus
  9. Cloeon
    rank: genus
  10. Oligochaeta
    rank: class
  11. Povilla adusta
    rank: species
  12. Procladius
    rank: genus
  13. Tanypus
    rank: genus

Geographic Coverages

The resource covers Lake Wamala. The lake is a UNEP designated environmental change hotspot (https://na.unep.net/atlas/webatlas.php?id=391).

Bibliographic Citations

  1. Mendahl-Barth, G. (1954). The Freshwater Mollusks of Uganda and Adjacent Territories. Annls Mus. r. Congo Belge, 8°, Zoology, 32: 1–206. -
  2. 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. -
  3. Pennak, R.W. (1953). Fresh-water Invertebrates of the United States. John Wiley & Sons, New York. 769pg. -

Contacts

Willy Gandhi Pabire
originator
position: Laboratory technician
National Fisheries Resources Research Institute
Nile Crescent, Plot 39/45, Opposite the wagon ferry terminal
Jinja
343
UG
email: gpabire@gmail.com
Laban Musinguzi
metadata author
position: Research officer
National Fisheries Resources Research Institute
Nile Crescent, Plot 39/45, Opposite the wagon ferry terminal
Jinja
343
UG
email: labanmusinguzi@firi.go.ug
homepage: https://labanmusinguzi.com/
Laban Musinguzi
user
email: labanmusinguzi@firi.go.ug
Laban Musinguzi
administrative point of contact
position: Research officer
National Fisheries Resources Research Institute
Nile Crescent, Plot 39/45, Opposite the wagon ferry terminal
Jinja
343
UG
email: labanmusinguzi@firi.go.ug
homepage: https://labanmusinguzi.com/
Vianny Natugonza
administrative point of contact
position: Research officer
National Fisheries Resources Research Institute
Nile Crescent, Plot 39/45, Opposite the wagon ferry terminal
Jinja
343
UG
email: viannynatugonza@firi.go.ug
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