Occurrence

Zooplankton occurrences and abundance in the Lake Albert system, Uganda

Dernière version Publié par National Fisheries Resources Research Institute le 9 juin 2022 National Fisheries Resources Research Institute
The dataset presents occurrences and abundance of zooplankton taxa obtained from different surveys conducted between 2002 and 2020. The surveys were conducted in different water bodies and habitat types within the Lake Albert system. The water bodies include Lake Edward, associated lagoons and rivers.

Enregistrements de données

Les données de cette ressource occurrence 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 1 482 enregistrements.

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 1 482 enregistrements dans Anglais (47 kB) - Fréquence de mise à jour: quand cela est nécessaire
Métadonnées sous forme de fichier EML télécharger dans Anglais (23 kB)
Métadonnées sous forme de fichier RTF télécharger dans Anglais (14 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, Egessa R, Mwebaza-Ndawula L (2022): Zooplankton occurrences and abundance in the Lake Albert system, Uganda. v1.0. National Fisheries Resources Research Institute. Dataset/Occurrence. http://ipt-uganda.gbif.fr/resource?r=albert_zooplankton&v=1.0

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 : f96f2ea7-da31-452d-9ce9-2d22847cebd3.  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

Occurrence; Uganda; Zooplankton; Lake Albert

Contacts

Personne ayant créé cette ressource:

Vincent Kiggundu
Senior Research technitian
National Fisheries Resources Research Institue
Nile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
343 Jinja
UG
Robert Egessa
Senior Research technitian
National Fisheries Resources Research Institue
Nile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
343 Jinja
UG
Lucas Mwebaza-Ndawula
Senior Research Officer
National Fisheries Resources Research Institue
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 technitian
National Fisheries Resources Research Institue
Nile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
343 Jinja
UG
Laban Musinguzi
Research Officer
National Fisheries Resources Research Institue
Nile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
343 Jinja
UG

Personne ayant renseigné les métadonnées:

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

Autres personnes associées à la ressource:

Utilisateur
Laban Musinguzi
Research Officer
National Fisheries Resources Rsearch Institute
Jinja
UG

Couverture géographique

This work was part of research and monitoring studies done in predetermined localities of Lake Albert, Luzira lagoon, and river mouths of Rivers Nkusi, Waki, Muzizi, and Wambabya.

Enveloppe géographique Sud Ouest [0,923, 30,245], Nord Est [2,504, 31,575]

Couverture taxonomique

The taxa include three broad groups of zooplankton: Copepoda, Cladocera and Rotifera

Class  Hexanauplia
Family  Calanoidae,  Cyclopoidae
Genus  Alona,  Ascomorpha,  Asplanchna,  Chydorus,  Euclanis,  Eucyclops,  Hexathra,  Macrothrix,  Mesocyclops,  Simocephalus,  Synchaeta
Species  Brachionus angularis,  Brachionus bidentata,  Brachionus budapestinensis,  Brachionus calyciflorus,  Brachionus falcatus,  Brachionus patulus,  Brachionus quadridentatus,  Ceriodaphnia cornuta,  Ceriodaphnia dubia,  Daphnia barbata,  Daphnia longispina,  Daphnia lumholtzi,  Diaphanosoma excisum,  Filinia longiseta,  Filinia opoliensis,  Keratella cochlearis,  Keratella tropica,  Lecane bulla,  Lecane signifera,  Moina micrura,  Platyias quadricornis,  Polyarthra vulgaris,  Synchaeta pectinata,  Testudinella parva,  Thermocyclops incisus,  Thermocyclops neglectus,  Thermodiaptomus galeboides,  Trichocerca cylindrica,  Tropocyclops confinnis,  Tropocyclops tenellus

Couverture temporelle

Epoque de formation 2002-2020

Données sur le projet

NaFIRRI implemented biodiversity informatics projects in the past but freshwater biodiversity data remained in less useful formats. This data was mobilized from data from available in soft and hard copy records at NaFIRRI. The data was collected through multiple projects that took place over the period covered by the data in the Lake Edward system.

Titre Zooplankton occurrences and abundance in the Lake Albertine system
Identifiant BID-AF2020-145-USE
Financement Data collection was funded by the World Bank through the Agricultural Technology and Agribusiness Advisory Services (AATAS), Agricultural Research and Training Project (ARTP II) projects. More funding was from the Lake Albert and Edward Fisheries II (LAEF) project.
Description du domaine d'étude / de recherche This work was part of research and monitoring studies conducted in predetermined localities on water bodies within the Lake Albert system. The area covered Lake Albert and Luzira lagoon while rivers covered were Nkusi, Waki, Muzizi, and Wambabya.
Description du design The lake and rivers represent wide portion of Lake Edward system, investigated from 2002 to 2020. The study areas represent multiple habitats based on the depth profile, distances from shoreline covering both lentic and lotic habitats.

Les personnes impliquées dans le projet:

Vincent Kiggundu

Méthodes d'échantillonnage

Zooplankton samples were collected with a conical plankton net (Nansen type; mesh size 60 µm and mouth diameter of 0.25 m), towed vertically through the water column, as described by Fernando (2002) and Mwebaza-Ndawula (1994). Three hauls were taken and combined to make composite samples, preserved in 5% formalin and transferred to laboratory for taxonomic analysis and generation of abundance. In the laboratory, each sample was washed with tap water 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 The water bodies covered were sampled within 2002 to 2020. However, sampling was not consistent for the water bodies over that period. Data is available for specified water bodies for a periods; 2002, 2007, 2013-14, 2016 and 2020.
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 as per Fernando (2002).

Description des étapes de la méthode:

  1. Collection of the zooplankton A conical plankton net (Nansen type; mesh size 60 µm; mouth diameter 0.25 m) was used to collect the zooplankton. It was towed vertically through the water column to have an integrated sample. Three hauls were taken per site and were combined to make a composite sample. Preserving the samples Samples were preserved in a sugar-formalin mixture. 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. Organisms were identified to the smallest taxonomic level possible using taxonomic 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.

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. Fernando, C. H. 2002. A Guide to Tropical Freshwater Zooplankton. Identification, Ecology and Impact on Fisheries, Leiden, The Netherlands, Backhuys Publishers.
  4. 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.
  5. Koste, W. 1978. Rotatoria. Die Radertiere Mitteleuropas. Ein Bestimmungwerk, begrundet vo Max Voig. Uberrordnung Monogononta. Gebruder Borntraeger, Berlin, Stuttgart.
  6. Pennak, R. W. 1953. Fresh-water invertebrates of the United States, New York, John Wiley & Sons.
  7. Rutner-Kolisko, A. 1974. Planktonic rotifers: Biology and taxonomy, Biological Station Lunz of the Austrian Academy of Science. E. Schweizerbart’sche Verlagsbuchhandlung.
  8. Sars, G. O. 1895. An account of the Crustacea of Norway, Christiania and Copenhagen Alb. Cammermeyer Forlag

Métadonnées additionnelles