Descripción
This dataset presents zooplankton taxa occurrence records and abundance. The data was obtained from a zooplankton survey conducted from October 2009 to January 2010 in three habitat types with varying environmental conditions on Lake Victoria, Uganda. The habitats include stabilizing waste water ponds near the lake shores.
Registros
Los datos en este recurso de evento de muestreo 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 3.961 registros.
también existen 1 tablas de datos de extensiones. Un registro en una extensión provee información adicional sobre un registro en el core. El número de registros en cada tabla de datos de la extensión se ilustra a continuación.
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:
Kiggundu V, Mwebaza-Ndawula L, Makanga B, Nachuha S, Musinguzi L, Natugonza V (2019): Zooplankton occurrences (present/absent) and community structure in three habitat types in northern Lake Victoria, Uganda. v1.2. National Fisheries Resources Research Institute. Dataset/Samplingevent. http://ipt-uganda.gbif.fr/resource?r=zooplankton&v=1.2
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 (CC-BY 4.0).
Registro GBIF
Este recurso ha sido registrado en GBIF con el siguiente UUID: 7eedbc1e-d362-4c8b-805f-37a7e2c21198. National Fisheries Resources Research Institute publica este recurso y está registrado en GBIF como un publicador de datos avalado por GBIF Uganda.
Palabras clave
Samplingevent; Occurrence; Uganda; Zooplankton; Lake Victoria
Contactos
- Proveedor De Los Metadatos ●
- Originador ●
- Usuario ●
- Punto De Contacto
- Senior Research Technician
- Nile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
- Originador
- Senior Research Technician
- Nile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
- Originador
- Lecturer
- Originador ●
- Punto De Contacto
- Research officer
- Nile Crescent, Plot 39/45, Jinja Opposite the Wagon ferry terminal
- Originador
- Research officer
- Nile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
Cobertura geográfica
The study was undertaken in the Napoleon Gulf, Lake Victoria and nearby stabilizing waste water ponds.
| Coordenadas límite | Latitud Mínima Longitud Mínima [0,378, 33,192], Latitud Máxima Longitud Máxima [0,476, 33,294] |
|---|
Cobertura taxonómica
This dataset covers freshwater zooplankton.
| Subclase | Copepoda |
|---|---|
| Orden | Harpacticoida |
| Familia | Calanoidae, Cyclopoidae |
| Género | Afrocyclops, Ascomorpha, Asplanchna, Brachionus, Chydorus, Euclanis, Eucyclops, Hexathra, Macrothrix, Mesocyclops, Platyias, Polyarthra, Synchaeta, Trichocerca |
| Especie | Bosmina longirostris, Brachionus angularis, Brachionus bidentata, Brachionus budapestinensis, Brachionus calyciflorus, Brachionus caudatus, Brachionus dimidiatus, Brachionus falcatus, Brachionus forficula, Brachionus patulus, Brachionus plicatilis, Brachionus quadridentatus, Brachionus urceolaris, Ceriodaphnia cornuta, Daphnia longispina, Daphnia lumholtzi, Diaphanosoma excisum, Filinia longiseta, Filinia opoliensis, Keratella cochlearis, Keratella tropica, Lecane bulla, Lecane luna, Moina micrura, Platyias quadricornis, Polyarthra vulgaris, Synchaeta pectinata, Thermocyclops decipiens, Thermocyclops emini, Thermocyclops incisus, Thermocyclops neglectus, Thermocyclops oblongatus, Thermodiaptomus galeboides, Trichocerca cylindrica, Tropocyclops confinnis, Tropocyclops tenellus, Tropodiaptomus stuhlmanni |
Cobertura temporal
| Periodo de formación | 2009-2010 |
|---|
Datos del proyecto
This work was part of an MSc research project that was done in three habitat types in Napoleon Gulf, Lake Victoria, Uganda (Vincent et al., 2012). The results of the project indicated that zooplankton community structure that can be used as a biological indicator of water quality in the Lake Victoria region, and confirmed the negative impacts of environmental conditions created by release of nutrients into the water systems.
| Título | Variations in zooplankton community structure and water quality conditions in three habitat types in northern Lake Victoria |
|---|---|
| Fuentes de Financiación | The project had no funding to declare |
| Descripción del área de estudio | The study area was the Northern part of Lake Victoria in Jinja. |
| Descripción del diseño | Three habitats, as described below were investigated in the study. The three study areas represent a water quality gradient of increasing nutrient levels from source of the Nile to the sewage lagoons. Source of the Nile This habitat marks the headwaters of the Nile River. It is an active tourist site with a range of commercial activities such as kiosks, bars, and artisanal fishing. Napoleon Gulf A number of commercial activities occur in and around this relatively shallow bay (maximum of 20 m depth) habitat. Key activities include artisanal fishing, fish landing sites, cage fish farming, farming, and lakeside markets. The gulf receives effluents from surrounding Jinja town as well as water from associated sewage treatment plant. If not appropriately controlled, such activities have the potential to affect water quality in this gulf. Multiple sites were sampled within the gulf (Vincent et al., 2012). The Sewage Lagoons (SL) Six sewage stabilization ponds that receive industrial and domestic effluents, as well as runoff from the Jinja Municipal Council (JMC), are located at Kirinya. Of the six ponds, only the two last ponds, which contain fewer organic solids, and empty their effluents to the Napoleon gulf through a 0.5 km stretch of swamp, were sampled. |
Personas asociadas al proyecto:
- Investigador Principal
Métodos de muestreo
Zooplankton samples were collected with a conical plankton net (Nansen type; mesh size 60 µm; mouth diameter 0.25 m), towed vertically through the water column, as described by Mwebaza-Ndawula (1994). Each sample was washed with tap water in the laboratory over a 53 µm sieve to remove the preservative and then diluted to a suitable volume, depending on the concentration of organisms in each sample. Sub-samples of 2, 2, 5 and 10 mL were taken with a wide bore automatic pipette from a well agitated sample. The sub-sample series were performed to consider the more abundant organisms in 2, 2 mL series, and the rarer organisms in 2, 2, 5, 10 mL series. Each sub-sample was put into a counting chamber and examined under inverted microscope (Hund, Wetzlar, Germany) at X100 magnification for taxonomic determination, and X40 for counting and organism body measurements.
| Área de Estudio | Sampling was conducted from October 2009 to January 2010. Sampling was done in the three habitats in northern Lake Victoria, including sewage lagoons at the lake shores, Napoleon Gulf (NG) and the interface between the lake and the Nile River (also known as Source of the Nile River). A total of 18 sites were sampled per trip (two transects per habitat, with three sites per transect), resulting in a total of 72 samples collected during the study period. |
|---|---|
| Control de Calidad | Some zooplankton were able to be identified to species level using published taxonomic keys (Sars 1895; Pennak 1953; Brooks 1957; Rutner-Kolisko 1974; Koste 1978; Boxshall & Braide 1991; Korinek 1999). Taxonomic names were cross-checked using the World Register of Marine Species (WoRMS). Volume densities of organisms were calculated from the counts data, with reference to the sample net mouth diameter and water column depth at each sampling site (Mwebaza-Ndawula L., 1998). |
Descripción de la metodología paso a paso:
- Collection of the zooplankton In the field, a conical plankton net (Nansen type; mesh size 60 µm; mouth diameter 0.25 m), towed vertically through the water column to have an integrated sample was used to collected the zooplankton. Three hauls were taken per site and were combined to make a composite sample. Preserving the samples The composite sample was preserved with sugar-formalin, in a ratio of 1-part formalin to 10 parts sample volume, the sugar was to stop the ballooning of cladocerans for easy identification. Identification of zooplankton taxa In the laboratory, samples were washed using a sieve of 53 µm to remove the fixatives. Some organisms were identified to species level using published keys (Sars, 1895, Pennak, 1953, Brooks, 1957, Rutner-Kolisko, 1974, Koste, 1978, Boxshall and Braide, 1991, Korinek, 1999). Density of organisms were calculated from the counts data, with reference to the sample net mouth diameter and water column depth at each sampling site (Mwebaza-Ndawula, 1998, unpubl. PhD Thesis)
Referencias bibliográficas
- Boxshall, G. A. & Braide, E. I. 1991. The freshwater cyclopoid copepods of Nigeria, with an illustrated key to all species. Bull. Br. Mus. Nat. Hist. (zool), 57, 185-212.
- Brooks, J. L. 1957. The systematics of North American Daphnia. Memoirs of the connecticut academy of Arts and Sciences, 13, 1-18.
- Korinek, V. 1999. A guide to limnetic species of Cladocera of African inland waters (Crustacea, Branchiopoda). The International Association of Theoretical and Applied Limnology. SIL.
- Koste, W. 1978. Rotatoria. Die Radertiere Mitteleuropas. Ein Bestimmungwerk, begrundet vo Max Voig. Uberrordnung Monogononta. Gebruder Borntraeger, Berlin, Stuttgart.
- Pennak, R. W. 1953. Fresh-water invertebrates of the United States, New York, John Wiley & Sons.
- Rutner-Kolisko, A. 1974. Planktonic rotifers: Biology and taxonomy, Biological Station Lunz of the Austrian Academy of Science. E. Schweizerbart’sche Verlagsbuchhandlung.
- Sars, G. O. 1895. An account of the Crustacea of Norway, Christiania and Copenhagen Alb. Cammermeyer Forlag
- Vincent, K., Mwebaza-Ndawula, L., Makanga, B. & Nachuha, S. 2012. Variations in zooplankton community structure and water quality conditions in three habitat types in northern Lake Victoria. Lakes & Reservoirs: Research & Management, 17, 83-95.
Metadatos adicionales
| Identificadores alternativos | 7eedbc1e-d362-4c8b-805f-37a7e2c21198 |
|---|---|
| http://ipt-uganda.gbif.fr/resource?r=zooplankton |