OCCURRENCE

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

Latest version published by National Fisheries Resources Research Institute on 17 October 2020 National Fisheries Resources Research Institute
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.

Data Records

The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 243 records.

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.

Downloads

Download the latest version of this resource data as a Darwin Core Archive (DwC-A) or the resource metadata as EML or RTF:

Data as a DwC-A file download 243 records in English (13 kB) - Update frequency: as needed
Metadata as an EML file download in English (19 kB)
Metadata as an RTF file download in English (14 kB)

Versions

The table below shows only published versions of the resource that are publicly accessible.

How to cite

Researchers should cite this work as follows:

Musinguzi L, Nsega M, Nkalubo W, Nakiyende H (2020): Fish species occurrences from selected near shore and riverine habitats in Lake Edward (2019). v1.2. National Fisheries Resources Research Institute. Dataset/Occurrence. http://ipt-uganda.gbif.fr/resource?r=lake_edward_leaf_19&v=1.2

Rights

Researchers should respect the following rights statement:

The publisher and rights holder of this work is National Fisheries Resources Research Institute. This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: 46090fec-fafb-44c1-aa10-2de851fcff41.  National Fisheries Resources Research Institute publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF Uganda.

Keywords

Occurrence; Lake Edward; Uganda; Freshwater biodiversity; Observation

Contacts

Who created the resource:

Laban Musinguzi
Research Officer
National Fisheries Resources research Institute
ile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
Jinja
UG
Monic Nsega
Principal research technitian
National Fisheries Resources research Institute
ile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
Jinja
UG
Winnie Nkalubo
Director of Research
National Fisheries Resources research Institute
ile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
Jinja
UG
Herbert Nakiyende
Research Officer
National Fisheries Resources research Institute
ile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
Jinja
UG

Who can answer questions about the resource:

Laban Musinguzi
Research Officer
National Fisheries Resources research Institute
ile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
Jinja
UG
Vianny Natugonza
Research Officer
National Fisheries Resources research Institute
ile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
Jinja
UG

Who filled in the metadata:

Laban Musinguzi
Research Officer
National Fisheries Resources research Institute
ile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
Jinja
UG
Monic Nsega
Principal research technitian
National Fisheries Resources research Institute
ile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
Jinja
UG
Winnie Nkalubo
Director of Research
National Fisheries Resources research Institute
ile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
Jinja
UG
Herbert Nakiyende
Research Officer
National Fisheries Resources research Institute
ile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
Jinja
UG

Who else was associated with the resource:

User
Laban Musinguzi
Research Officer
National Fisheries Resources research Institute
ile Crescent, Plot 39/45, Jinja Opposite the wagon ferry terminal
Jinja
UG

Geographic Coverage

The dataset covers Lake Edward, Uganda

Bounding Coordinates South West [-0.514, 29.6], North East [-0.044, 29.932]

Taxonomic Coverage

The dataset covers fishes in Lake Edward, Uganda

Genus  Haplochromis,  Labeobarbus/Enteromius
Species  Astatoreochromis alluaudi ,  Bagrus docmak,  Clarias gariepinus,  Coptodon zillii,  Ctenopoma muriei,  Haplochromis labiatus,  Haplochromis squamipinnis,  Labeo forskalii,  Labeobarbus altianalis,  Mormyrus kannume,  Oreochromis niloticus,  Oreochromis leucostictus,  Protopterus aethiopicus

Temporal Coverage

Formation Period 2019

Project Data

The project was an investment of the Nile Basin Initiative (NBI), through the Nile Equatorial Lakes Subsidiary Action Program (NELSAP) on lakes Edward and Albert as a trans-boundary lake to tackle anthropogenic and environmental threats to fisheries. The objective of the project was to identify, characterize and map fish breeding areas on the lakes in order to guide their gazettement and protection for sustainable management of the trans-boundary fisheries resources.

Title Identification, characterisation and mapping of fish breeding areas on Lakes Edward and Albert
Identifier CONTRACT NO: NELSAP/LEAF/2018/SVS/FBA
Funding The project was funded by the Nile Basin Initiative (NBI), through the Nile Equatorial Lakes Subsidiary Action Program (NELSAP)
Study Area Description Lake Edward (surface area 2,300 Km2; average depth 17 m; maximum depth 117 m) is one of the African Great Rift lakes. It is shared between the Democratic Republic of Congo (DRC) (71%) and Uganda (29%). The lake’s major inflows are the Rwindi, Rutshuru, Nyamugasani, Ishasha, Taliha and Lubiriha rivers. The lake is connected to Lake George by the 36 km long Kazinga Channel. Most of the lake is bordered by Queen Elizabeth National Park in Uganda and Virunga National Park in the Democratic Republic of Congo (DRC). Lake Edward supports commercial fisheries in both DRC and Uganda.
Design Description The aim of the project was to identify sites suitable for designation as fish breeding areas. A reconnaissance survey was undertaken to characterize habitats along the shorelines in the lake to identify potential sites. Selection of study sites was based on known habitat preferences for fish (e.g. sandy, muddy, vegetated, and rocky areas) and local knowledge of the riparian communities about habitat types of the lake. At the end, 6 sites were selected for the study. The sites were diverse with different physical characteristics. Lubiriha: Associated with Lubiriha river mouth with vegetation fringes of phragmites and sandy bottom 1. Kayanja: Sheltered bay (lagoon) with vossia, phragmites, and cyperus sp. The sediment was moderate muddy 2. Nyamugasani: At the river mouth of Nyamusagani river with sandy bottom 3. Ruhandagati (Mukiyinja): Open sandy shoreline. The shoreline is forested and rocky. Vegetation is dominated by ambauch trees. The bottom was rocky and sandy. 4. Katako: Sheltered bay with muddy bottom. The shoreline is forested by ambatch trees and woodland 5. Rwenshama: Associated with Ntungwe river mouth, Ishasha river mouth and Izibibi river mouth. The fringes are vegetated by papyrus and ambauch trees. The bottom is sandy. 6. Kisenyi: Associated with Nyamweru river mouth. The shoreline consists of fringes of woodland, papyrus, and ambatch. The bottom is sandy.

The personnel involved in the project:

Laban Musinguzi
Monic Nsega
Winnie Nkalubo
Herbert Nakiyende

Sampling Methods

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 step description:

  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.

Additional Metadata

Alternative Identifiers 46090fec-fafb-44c1-aa10-2de851fcff41
http://ipt-uganda.gbif.fr/resource?r=lake_edward_leaf_19