説明
A dataset of macroinvertebrate taxa collected in sites with varying levels of pollution in Lake Victoria, Uganda
データ レコード
この オカレンス（観察データと標本) リソース内のデータは、1 つまたは複数のデータ テーブルとして生物多様性データを共有するための標準化された形式であるダーウィン コア アーカイブ (DwC-A) として公開されています。 コア データ テーブルには、680 レコードが含まれています。
この IPT はデータをアーカイブし、データ リポジトリとして機能します。データとリソースのメタデータは、 ダウンロード セクションからダウンロードできます。 バージョン テーブルから公開可能な他のバージョンを閲覧でき、リソースに加えられた変更を知ることができます。
バージョン
次の表は、公にアクセス可能な公開バージョンのリソースのみ表示しています。
引用方法
研究者はこの研究内容を以下のように引用する必要があります。:
Pibire W G (2022): Diversity, distribution and abundance of macro-invertebrates in areas with different pollution levels in Lake Victoria. v1.2. National Fisheries Resources Research Institute. Dataset/Occurrence. http://ipt-uganda.gbif.fr/resource?r=macroinvertslakesvictoria&v=1.2
権利
研究者は権利に関する下記ステートメントを尊重する必要があります。:
パブリッシャーとライセンス保持者権利者は National Fisheries Resources Research Institute。 This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC 4.0) License.
GBIF登録
このリソースをはGBIF と登録されており GBIF UUID: b9e46a41-3eac-4ad1-b6c1-ad09b7ba9c45が割り当てられています。 GBIF Uganda によって承認されたデータ パブリッシャーとして GBIF に登録されているNational Fisheries Resources Research Institute が、このリソースをパブリッシュしました。
キーワード
Occurrence; Observation; Occurrence
連絡先
- 最初のデータ採集者
- メタデータ提供者 ●
- 連絡先
- データ利用者 ●
- 連絡先
- 連絡先
地理的範囲
Lake Victoria, Uganda
| 座標（緯度経度） | 南 西 [-1.022, 31.608], 北 東 [0.549, 33.992] |
|---|
生物分類学的範囲
Freshwater macroinvertebrates
| Class | Hirudinea, Oligochaeta, Ostracoda |
|---|---|
| Family | Baetidae, Ceratopogonidea, Chironomidae, Corixidae, Ephemeridae, Gomphidae, Leptoceridae, Leptophlebidae, Libellulidae |
| Genus | Ablabesmyia, Biomphalaria, Bulinus, Caelatura, Caenis, Chaoborus, Chironomus, Clinotanypus, Cloeon, Conchostraca, Cryptochironomus, Economus, Procladius, Segmentorbis, Sphaerium, Tanypus, Tanytarsus |
| Species | Bellamya unicolor, Byssanodonta parasitica, Caelatura hauttecoeuri, Caelatura monceti, Caridina nilotica, Corbicula africana, Gabbia humerosa, Lentorbis junodi, Melanoides tuberculata, Mutera bourguignat, Pisidium victoriae, Povilla adusta |
時間的範囲
| 生成(収集）期間 | 2011-2013 |
|---|
プロジェクトデータ
LVEMP phase II (LVEMP II) was a project aimed at guiding the restoration of the Lake Victoria ecosystem through improved water quality and fisheries management, and prevention of land degradation in the lake’s catchment. The project had sub-activities on pollution designed to contribute to the project aim. The data in this dataset were as a result of a study conducted under the pollution sub-activities to determine the levels of pollution in Lake Victoria and the relationship of water quality and biotic communities. Please note that the project identifier above is not for LVEMP phase II but for another project that contributed to the publication of the data.
| タイトル | Lake Victoria Environmental Management Project Phase II (LVEMP II) |
|---|---|
| 識別子 | BID-AF2020-145-USE |
| ファンデイング | World Bank & East African Community (EAC) partner states |
| Study Area Description | The study area was Northern Lake Victoria, Uganda |
| 研究の意図、目的、背景など（デザイン） | The study was carried out in seven sites in the northern part of Lake Victoria (Uganda) that were considered to have different pollution levels. The study focused on (1) areas receiving urban effluent (Murchison Bay and Napoleon Gulf), those draining large catchment areas via rivers (Berkeley Bay, Bunjako Bay and Kagera area) and those adjacent to agricultural hinterland without urban areas in their vicinity or river inflow (Hannington Bay and Kalangala area). Within each site, data were collected from up to three stations from near shore to offshore. The characteristics of these sites are summarized as follows. Murchison bay is an open bay exposed to wind mixing. It receives urban effluents from Kampala city and its suburbs. Napoleon gulf is moderately sheltered in vicinity of an urban and industrial centre. It receives effluents from urban sewage stabilization ponds, hosts cage fish farms. It is the location of the lake's outflow through the River Nile. Bunjako bay is relatively sheltered and shallow bay. It receives water from rich agricultural and pastoral farmlands of the Katonga sub-catchment via River Katonga. Berkeley bay is a shallow bay receiving silt-laden waters from rich agricultural areas through River Sio. Kagera receives silt-laden water from rich agricultural farmlands via River Kagera. It is exposed to high wind action and turbulent lake waters from the offshore. Hannington bay is a shallow (<10m) relatively sheltered bay receiving mainly surface run-off from rural subsistence agricultural hinterlands. It was considered as a relatively pristine area compared to other sites. Kalangala is exposed to high wind mixing with adjacent to commercial palm farmlands |
プロジェクトに携わる要員:
収集方法
At each sampling station, a ponar grab of 238 cm2 open jaw area was used to pick 3 hauls of sediment. Triplicate samples from each station were either individually concentrated or concentrated as a composite sample using a filtering bag of 400 µm mesh of nitex webbing. The concentrated samples were placed in sample containers, preserved in 5% formalin solution, labeled and taken to the laboratory for analysis. In the laboratory, the samples from each container were individually rinsed in water to wash away formalin and placed on a white flat-bottomed tray. Some water was added to spread the sample and all the benthic macro-invertebrates were sorted out using a pair of forceps. The organisms were classified and identified under a dissecting microscope (at 25X eye piece and 4X or 16X objectives) where detailed structures were required. Taxonomic identification keys: Merritt and Cummins (1997), Pennak (1978), and Mandahl-Barth (1954) were used in identification of the invertebrates. Individual members of each taxon were enumerated.
| Study Extent | Sampling of the sites was conducted in 2011, 2012 and 2013. |
|---|---|
| Quality Control | The samples were immediately processed in the field and treated with formalin to keep the organisms of interest intact and prevent them from rotting. To avoid loss of organisms during sample processing, appropriate mesh sizes during sieving. Appropriate taxonomic keys were used. |
Method step description:
- 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.
書誌情報の引用
- Mendahl-Barth, G. (1954). The Freshwater Mollusks of Uganda and Adjacent Territories. Annls Mus. r. Congo Belge, 8°, Zoology, 32: 1–206.
- 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.
- Pennak, R.W. (1953). Fresh-water Invertebrates of the United States. John Wiley & Sons, New York. 769pg.
追加のメタデータ
| 代替識別子 | b9e46a41-3eac-4ad1-b6c1-ad09b7ba9c45 |
|---|---|
| http://ipt-uganda.gbif.fr/resource?r=macroinvertslakesvictoria |