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    Occurrence dataset Registered June 25, 2020

    Fish species occurrences from selected near shore and riverine habitats in Lake Edward (2019)

    Published by National Fisheries Resources Research Institute
    Musinguzi L • Nsega M • Nkalubo W • Nakiyende H
    LicenceCC BY-NC 4.0

    Description

    This dataset is of fish occurrences observed in Lake Edward. Fishes were collected using gillnets from sheltered, riverine and rocky habitats in March and July 2019.

    Geographic scope

    Description

    The dataset covers Lake Edward, Uganda

    Latitude
    From -0.514 to -0.044
    Longitude
    From 29.6 to 29.932

    Temporal scope

    verbatim
    2019

    Taxonomic scope

    Description

    The dataset covers fishes in Lake Edward, Uganda

    Coverage
    Astatoreochromis alluaudi Bagrus docmakClarias gariepinusCoptodon zilliiCtenopoma muriei

    Methodology

    Sampling

    Experimental gill-netting was carried out at selected stations. Experimental gill-netting was conducted twice in each site in March and July 2019. At each station, three fleets of graded mesh gill nets (ranging from size 1” to 8”) were set parallel to the shoreline out towards the open water. The inshore (1st) fleet was set next to the shoreline vegetation within 0-100 m distance. The middle fleet was set between 100 m and 200 m from the 1st fleet while the last (offshore) fleet was set more than 300 m from the shore. The nets were set in the evening (1800h – 1900h) and lifted at dawn (0500h – 0600h) the following morning.

    After retrieval of gill nets, fish were removed, sorted, identified to the lowest taxonomical category possible, counted and weighed.

    Study extent

    The sampling was conducted using experimental gill netting in Lake Edward. The experimental gill-netting was conducted twice in 2019. The first sampling was conducted in March and the second sampling, in July.

    Quality control

    Measures taken to improve data quality included taking field photos of identified fish species; using fish identification keys to identify fish. Specimens for fish that could not be identified in the field were transferred to the laboratory for further processing. Species names were validated using FishBase (Froese & Paully, 2019).

    Method steps

    1. Fish capture
      Fish were captured using experimental gill-nets set at selected stations. The gill-netting was done twice in 2019 (March and July). At each station, three fleets of multifilament gill nets of mesh sizes ranging from 1 to 8 inches were set parallel to the shoreline. The inshore (1st) fleet was set next to the shoreline vegetation within 0-100 m distance from the shoreline. The middle fleet was set between 100 m and 200 m from the 1st fleet while the last (offshore) fleet was set more than 300 m from the shore. The nets were set in the evening (1800h – 1900h) and retrieved at dawn the next day.

    2. Data processing
      Fish retrieved from gill-nets were sorted by taxa, counted and weighted.

    Metrics

    Contacts

    • Laban Musinguzi

      Originator
      Metadata author
      User
      Administrative point of contact
      Organization
      National Fisheries Resources research Institute
      Position
      Research Officer
      Address
      ile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
      Roles
      Originator
      Metadata author
      User
      Administrative point of contact

    • Monic Nsega

      Originator
      Metadata author
      Organization
      National Fisheries Resources research Institute
      Position
      Principal research technitian
      Address
      ile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
      Roles
      Originator
      Metadata author

    • Winnie Nkalubo

      Originator
      Metadata author
      Organization
      National Fisheries Resources research Institute
      Position
      Director of Research
      Address
      ile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
      Roles
      Originator
      Metadata author

    • Herbert Nakiyende

      Originator
      Metadata author
      Organization
      National Fisheries Resources research Institute
      Position
      Research Officer
      Address
      ile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
      Roles
      Originator
      Metadata author

    • Vianny Natugonza

      Administrative point of contact
      Organization
      National Fisheries Resources research Institute
      Position
      Research Officer
      Address
      ile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
      Roles
      Administrative point of contact

    GBIF registration

    Registration date
    June 25, 2020
    Metadata last modified
    October 17, 2020
    Publication date
    October 17, 2020
    Hosted by
    National Fisheries Resources Research Institute
    Installation
    IPT GBIF Uganda
    Endpoints
    Darwin Core Archive
    EML
    Preferred identifier
    10.15468/rkv45e
    Alternative identifiers
    GBIF registration details

    Citation

    Musinguzi L, Nsega M, Nkalubo W, Nakiyende H (2020). Fish species occurrences from selected near shore and riverine habitats in Lake Edward (2019). Version 1.2. National Fisheries Resources Research Institute. Occurrence dataset https://doi.org/10.15468/rkv45e accessed via GBIF.org on 2025-01-18.
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