Visherintroductie - Reintroduction of the fishes chub, dace, burbot, and brown trout in Flanders, Belgium

Latest version published by Research Institute for Nature and Forest (INBO) on Mar 31, 2021 Research Institute for Nature and Forest (INBO)
Publication date:
31 March 2021
CC0 1.0

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 3,594 records in English (100 KB) - Update frequency: not planned
Metadata as an EML file download in English (17 KB)
Metadata as an RTF file download in English (11 KB)


Visherintroductie - Reintroduction of the fishes chub, dace, burbot, and brown trout in Flanders, Belgium is a species occurrence dataset published by the Research Institute for Nature and Forest (INBO). The dataset contains over 3,300 fish occurrences sampled between 2008 and 2011 from 18 watercourses. The dataset includes 20 fish species. The data are collected to evaluate the success of the reintroduction of the fishes chub, dace, burbot and brown trout in Flanders. The captured numbers were compared with the expected numbers, which were determined in previous studies based on habitat suitability models. The dataset also includes the length and mass of the caught fishes. Issues with the dataset can be reported at

To allow anyone to use this dataset, we have released the data to the public domain under a Creative Commons Zero waiver ( We would appreciate it however if you read and follow these norms for data use ( and provide a link to the original dataset ( whenever possible. If you use these data for a scientific paper, please cite the dataset following the applicable citation norms and/or consider us for co-authorship. We are always interested to know how you have used or visualized the data, or to provide more information, so please contact us via the contact information provided in the metadata, or

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 3,594 records.

1 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.

Occurrence (core)

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.


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

How to cite

Researchers should cite this work as follows:

Van den Neucker T, Brosens D, Desmet P (2021): Visherintroductie - Reintroduction of the fishes chub, dace, burbot, and brown trout in Flanders, Belgium. v14.5. Research Institute for Nature and Forest (INBO). Dataset/Occurrence.


Researchers should respect the following rights statement:

The publisher and rights holder of this work is Research Institute for Nature and Forest (INBO). To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: 45157d5f-7eb9-42b8-8d70-66482fdd912f.  Research Institute for Nature and Forest (INBO) publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Belgian Biodiversity Platform.


Occurrence; Observation; fish reintroduction; species recovery; freshwater; Occurrence


Tom Van den Neucker
  • Metadata Provider
  • Originator
  • Point Of Contact
Dimitri Brosens
  • Metadata Provider
  • Originator
Research Institute for Nature and Forest (INBO) / Belgian Biodiversity Platform
Peter Desmet
  • Metadata Provider
  • Originator
Research Institute for Nature and Forest (INBO)

Geographic Coverage

Watercourses in Flanders, Belgium.

Bounding Coordinates South West [50.68, 2.54], North East [51.51, 5.92]

Taxonomic Coverage

All species in this dataset are fishes (Actinopterygii, Petromyzontida), with a sampling focus on European chub (Leuciscus cephalus), burbot (Lota lota), common dace (Leuciscus leuciscus) and brown trout (Salmo trutta). The top 3 recorded species are Leuciscus leuciscus (34%), Leuciscus cephalus (24%), and Lota lota (18%).

Kingdom Animalia (animals)
Class Actinopterygii (ray-finned fishes), Petromyzontida
Species Squalius cephalus (European chub), Ameiurus nebulosus (brown bullhead), Anguilla anguilla (European eel), Cobitis taenia (spined loach), Esox lucius (northern pike), Gasterosteus aculeatus (three-spined stickleback), Gobio gobio (gudeon), Lampetra planeri (European brook lamprey), Lepomis gibbosus (pumpkinseed), Leuciscus cephalus (European chub), Leuciscus idus (ide), Leuciscus leuciscus (common dace), Lota lota (burbot), Oncorhynchus mykiss (rainbow trout), Perca fluviatilis (European perch), Pseudorasbora parva (stone moroko), Pungitius pungitius (ninespine stickleback), Rutilus rutilus (common roach), Salmo trutta (brown trout), Stizostedion lucioperca (zander), Umbra pygmaea (eastern mudminnow)

Temporal Coverage

Start Date / End Date 2008-02-19 / 2011-02-08

Sampling Methods

Electrofishing was used to measure the reintroduction success. The number of individuals was recorded, as well fork length (tip of snout to fork of tail in millimeter) and weight (gram). The water temperature was measured in °C.

Study Extent 18 watercourses in Flanders, Belgium were sampled to evaluate the success of reintroduction: Abeek, Asbeek, Balengracht, Bosbeek, Grote nete, Hanskenselsloop, Heiloop, Ijsse, Itterbeek, Laan, Maarkebeek, meer van Rotselaar (lake), Molenbeek, Scherpenbergloop, Terkleppebeek, Vleterbeek, Zeeploop, and Zwalm.
Quality Control All records are validated.

Method step description:

  1. Electrofishing was used to sample the trajectories.

Bibliographic Citations

  1. Van den Neucker, T. et al. (2010). Wetenschappelijke ondersteuning herstelprogramma’s kopvoorn, serpeling, kwabaal en beekforel in 2009. Rapporten van het Instituut voor Natuur- en Bosonderzoek, INBO.R.2010.64. Instituut voor Natuur- en Bosonderzoek (INBO): Brussel. 182 pp.

Additional Metadata

Alternative Identifiers 45157d5f-7eb9-42b8-8d70-66482fdd912f