Données d'échantillonnage

Zooplankton occurrences (present/absent) and community structure in three habitat types in northern Lake Victoria, Uganda

Dernière version Publié par National Fisheries Resources Research Institute le 6 juin 2019 National Fisheries Resources Research Institute
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.

Enregistrements de données

Les données de cette ressource données d'échantillonnage ont été publiées sous forme d'une Archive Darwin Core (Darwin Core Archive ou DwC-A), le format standard pour partager des données de biodiversité en tant qu'ensemble d'un ou plusieurs tableurs de données. Le tableur de données du cœur de standard (core) contient 3 961 enregistrements.

1 tableurs de données d'extension existent également. Un enregistrement d'extension fournit des informations supplémentaires sur un enregistrement du cœur de standard (core). Le nombre d'enregistrements dans chaque tableur de données d'extension est illustré ci-dessous.

  • Event (noyau)
    3961
  • Occurrence 
    3961

Cet IPT archive les données et sert donc de dépôt de données. Les données et métadonnées de la ressource sont disponibles pour téléchargement dans la section téléchargements. Le tableau des versions liste les autres versions de chaque ressource rendues disponibles de façon publique et permet de tracer les modifications apportées à la ressource au fil du temps.

Téléchargements

Téléchargez la dernière version de la ressource en tant qu'Archive Darwin Core (DwC-A), ou les métadonnées de la ressource au format EML ou RTF :

Données sous forme de fichier DwC-A (zip) télécharger 3 961 enregistrements dans Anglais (102 kB) - Fréquence de mise à jour: quand cela est nécessaire
Métadonnées sous forme de fichier EML télécharger dans Anglais (28 kB)
Métadonnées sous forme de fichier RTF télécharger dans Anglais (16 kB)

Versions

Le tableau ci-dessous n'affiche que les versions publiées de la ressource accessibles publiquement.

Comment citer

Les chercheurs doivent citer cette ressource comme suit:

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

Droits

Les chercheurs doivent respecter la déclaration de droits suivante:

L’éditeur et détenteur des droits de cette ressource est National Fisheries Resources Research Institute. Ce travail est sous licence Creative Commons Attribution (CC-BY) 4.0.

Enregistrement GBIF

Cette ressource a été enregistrée sur le portail GBIF, et possède l'UUID GBIF suivante : 7eedbc1e-d362-4c8b-805f-37a7e2c21198.  National Fisheries Resources Research Institute publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du GBIF Uganda.

Mots-clé

Samplingevent; Occurrence; Uganda; Zooplankton; Lake Victoria

Contacts

Personne ayant créé cette ressource:

Vincent Kiggundu
Senior Research Technician
National Fisheries Resources Research Institute
Nile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
343 Jinja
UG
Lucas Mwebaza-Ndawula
Senior Research Technician
National Fisheries Resources Research Institute
Nile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
343 Jinja
UG
Bonifance Makanga
Lecturer
Department of Zoology, Faculty of Science, Makerere University
Kampala
UG
Sarah Nachuha
Lecturer
Islamic University in Uganda, Mbale, Uganda
Laban Musinguzi
Research officer
National Fisheries Resources Research Institute
Nile Crescent, Plot 39/45, Jinja Opposite the Wagon ferry terminal
343 Jinja
UG
Vianny Natugonza
Research officer
National Fisheries Resources Research Institute
Nile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
343 Jinja
UG

Personne pouvant répondre aux questions sur la ressource:

Vincent Kiggundu
Senior Research Technician
National Fisheries Resources Research Institute
Nile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
343 Jinja
UG
Laban Musinguzi
Research officer
National Fisheries Resources Research Institute
Nile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
343 Jinja
UG
http://www.labanmusinguzi.com

Personne ayant renseigné les métadonnées:

Vincent Kiggundu
Senior Research Technician
National Fisheries Resources Research Institute
Nile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
343 Jinja
UG

Autres personnes associées à la ressource:

Utilisateur
Vincent Kiggundu
Senior Research Technician
National Fisheries Resources Research Institute
Nile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
343 Jinja
UG

Couverture géographique

The study was undertaken in the Napoleon Gulf, Lake Victoria and nearby stabilizing waste water ponds.

Enveloppe géographique Sud Ouest [0,378, 33,192], Nord Est [0,476, 33,294]

Couverture taxonomique

This dataset covers freshwater zooplankton.

Subclass  Copepoda
Order  Harpacticoida
Family  Calanoidae,  Cyclopoidae
Genus  Afrocyclops,  Ascomorpha,  Asplanchna,  Brachionus,  Chydorus,  Euclanis,  Eucyclops,  Hexathra,  Macrothrix,  Mesocyclops,  Platyias,  Polyarthra,  Synchaeta,  Trichocerca
Species  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

Couverture temporelle

Epoque de formation 2009-2010

Données sur le projet

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.

Titre Variations in zooplankton community structure and water quality conditions in three habitat types in northern Lake Victoria
Financement The project had no funding to declare
Description du domaine d'étude / de recherche The study area was the Northern part of Lake Victoria in Jinja.
Description du design 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.

Les personnes impliquées dans le projet:

Chercheur Principal
Vincent Kiggundu

Méthodes d'échantillonnage

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.

Etendue de l'étude 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.
Contrôle qualité 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).

Description des étapes de la méthode:

  1. 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)

Citations bibliographiques

  1. 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.
  2. Brooks, J. L. 1957. The systematics of North American Daphnia. Memoirs of the connecticut academy of Arts and Sciences, 13, 1-18.
  3. 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.
  4. Koste, W. 1978. Rotatoria. Die Radertiere Mitteleuropas. Ein Bestimmungwerk, begrundet vo Max Voig. Uberrordnung Monogononta. Gebruder Borntraeger, Berlin, Stuttgart.
  5. Pennak, R. W. 1953. Fresh-water invertebrates of the United States, New York, John Wiley & Sons.
  6. Rutner-Kolisko, A. 1974. Planktonic rotifers: Biology and taxonomy, Biological Station Lunz of the Austrian Academy of Science. E. Schweizerbart’sche Verlagsbuchhandlung.
  7. Sars, G. O. 1895. An account of the Crustacea of Norway, Christiania and Copenhagen Alb. Cammermeyer Forlag
  8. 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.

Métadonnées additionnelles

Identifiants alternatifs 7eedbc1e-d362-4c8b-805f-37a7e2c21198
http://ipt-uganda.gbif.fr/resource?r=zooplankton