Descripción
This dataset provides the occurrence, distribution, and abundance or composition of benthic macro-invertebrates collected through various biodiversity surveys conducted on Lake Victoria, Uganda.
Registros
Los datos en este recurso de registros biológicos han sido publicados como Archivo Darwin Core(DwC-A), el cual es un formato estándar para compartir datos de biodiversidad como un conjunto de una o más tablas de datos. La tabla de datos del core contiene 860 registros.
Este IPT archiva los datos y, por lo tanto, sirve como repositorio de datos. Los datos y los metadatos del recurso están disponibles para su descarga en la sección descargas. La tabla versiones enumera otras versiones del recurso que se han puesto a disposición del público y permite seguir los cambios realizados en el recurso a lo largo del tiempo.
Versiones
La siguiente tabla muestra sólo las versiones publicadas del recurso que son de acceso público.
¿Cómo referenciar?
Los usuarios deben citar este trabajo de la siguiente manera:
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
Derechos
Los usuarios deben respetar los siguientes derechos de uso:
El publicador y propietario de los derechos de este trabajo es National Fisheries Resources Research Institute. Esta obra está bajo una licencia Creative Commons de Atribución/Reconocimiento-NoComercial (CC-BY-NC 4.0).
Registro GBIF
Este recurso ha sido registrado en GBIF con el siguiente UUID: f5656abf-d557-4abd-9dc1-6c7992159b8c. National Fisheries Resources Research Institute publica este recurso y está registrado en GBIF como un publicador de datos avalado por GBIF Uganda.
Palabras clave
Occurrence; Lake Victoria; Uganda; Macro-invertebrates; Observation
Contactos
- Proveedor De Los Metadatos ●
- Originador
- Punto De Contacto
Cobertura geográfica
The dataset covers sites on Lake Victoria, Uganda
| Coordenadas límite | Latitud Mínima Longitud Mínima [-1,055, 31,509], Latitud Máxima Longitud Máxima [0,549, 34,146] |
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Cobertura taxonómica
Aquatic benthic macro-invertebrates
| Class | Oligochaeta |
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| Orden | Podocopa, Conchostraca |
| Familia | Cordulidae, Ephemeridae, Glossiphoniidae, Leptoceridae, Libellulidae |
| Género | Ablabesmyia, Bellamya genus, Biomphalaria, Bulinus, Byssanodonta, Caelatura, Caenis, Chaoborus, Chimarra, Chironomus, Clinotanypus, Corbicula, Cryptochironomus, Economus, Neochetina, Palpomyia, Procladius, Sphaerium, Tanypus, Tanytarsus |
| Especie | Caridina nilotica, Gabbia humerosa, Melanoides tuberculata, Mutera bourguignat, Povilla adusta |
Cobertura temporal
| Periodo de formación | 2001-2006 |
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Métodos de muestreo
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.
| Área de Estudio | The datasets present data for surveys conducted between 2001 and 2006. |
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| Control de Calidad | 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. |
Descripción de la metodología paso a paso:
- 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.
Referencias bibliográficas
- 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.
- 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.
- Pennak, R. W, (1953). Fresh-water invertebrates of the United States. 2th Edition, John Wiley & Sons, New York, 803 Pages.
Metadatos adicionales
| Identificadores alternativos | http://ipt-uganda.gbif.fr/resource?r=lakevictoriainventory |
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