Taxa occurrences and composition of benthic macroinvertebrates from biodiversity surveys on Lake Victoria, Uganda (2001-2006)

出現紀錄
最新版本 published by National Fisheries Resources Research Institute on 5月 24, 2021 National Fisheries Resources Research Institute
發布日期:
2021年5月24日
授權條款:
CC-BY-NC 4.0

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說明

This dataset provides the occurrence, distribution, and abundance or composition of benthic macro-invertebrates collected through various biodiversity surveys conducted on Lake Victoria, Uganda.

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版本

以下的表格只顯示可公開存取資源的已發布版本。

如何引用

研究者應依照以下指示引用此資源。:

Gandhi Pabire W (2021): Taxa occurrences and composition of benthic macroinvertebrates from biodiversity surveys on Lake Victoria, Uganda (2001-2006). v1.1. National Fisheries Resources Research Institute. Dataset/Occurrence. http://ipt-uganda.gbif.fr/resource?r=lakevictoriainventory&v=1.1

權利

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此資料的發布者及權利單位為 National Fisheries Resources Research Institute。 This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC 4.0) License.

GBIF 註冊

此資源已向GBIF註冊,並指定以下之GBIF UUID: f5656abf-d557-4abd-9dc1-6c7992159b8c。  National Fisheries Resources Research Institute 發佈此資源,並經由GBIF Uganda同意向GBIF註冊成為資料發佈者。

關鍵字

Occurrence; Lake Victoria; Uganda; Macro-invertebrates; Observation

聯絡資訊

Willy Gandhi Pabire
  • 元數據提供者
  • 出處
Research technician
National Fisheries Resources Research Institute
Jinja
UG
Laban Musinguzi
  • 連絡人
Research officer
National Fisheries Resources Research Institute
Jinja
UG

地理涵蓋範圍

The dataset covers sites on Lake Victoria, Uganda

界定座標範圍 緯度南界 經度西界 [-1.055, 31.509], 緯度北界 經度東界 [0.549, 34.146]

分類群涵蓋範圍

Aquatic benthic macro-invertebrates

Class Oligochaeta
Order Podocopa, Conchostraca
Family Cordulidae, Ephemeridae, Glossiphoniidae, Leptoceridae, Libellulidae
Genus Ablabesmyia, Bellamya genus, Biomphalaria, Bulinus, Byssanodonta, Caelatura, Caenis, Chaoborus, Chimarra, Chironomus, Clinotanypus, Corbicula, Cryptochironomus, Economus, Neochetina, Palpomyia, Procladius, Sphaerium, Tanypus, Tanytarsus
Species Caridina nilotica, Gabbia humerosa, Melanoides tuberculata, Mutera bourguignat, Povilla adusta

時間涵蓋範圍

彙整期間 2001-2006

取樣方法

The surveys considered several sites along the shoreline of Lake Victoria in Uganda. A Ponar grab with an open jaw area of 238 cm2 was used to take samples of benthic macroinvertebrates. Three spread hauls were taken from each sampling point or site, and mixed to form a composite. The bottom type at each point was described from the grabbed contents. The composite sample was concentrated and then placed in labeled sample bottles and preserved with 5% formalin solution and taken for laboratory analysis. 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.

研究範圍 The datasets present data for surveys conducted between 2001 and 2006.
品質控管 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.

方法步驟描述:

  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. 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. 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.

引用文獻

  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. Pennak, R.W. 1953. Fresh-water Invertebrates of the United States. John Wiley & Sons, New York. 769pg.
  5. Pennak, R. W, (1953). Fresh-water invertebrates of the United States. 2th Edition, John Wiley & Sons, New York, 803 Pages.

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