Visbestandopnames in Vlaanderen in het kader van het Referentiemeetnet -Bemonsteringsresultaten 2020

Research output: Book/ReportReports of Research Institute for Nature and Forest

878 Downloads (Pure)


This report presents the sampling results of fishing campaigns conducted on streams and rivers in 2020. We sampled 85 sites: at one site we caught no fish. At the remaining sites, species diversity ranged between 1 and 16 species.
In total, we found 42 fish and lamprey species. The most widespread species was roach, followed by eel. This is followed by perch, gudgeon and three-spined stickleback. As for non-native species, only stone moroko is in the top 10 species caught. We caught the European protected Euopean bitterling at 21 % , brook lamprey at 12 % and spined loach at 11 % of the monitoring sites.
We also discuss the EQR (Ecological Quality Ratio) values of the sampled waters, they are a measure of the ecological status of a water body. Only 7.5 % of sampled sites on streams and rivers are in the 'good status' required by the Water Framework Directive. Most sites - 57.5 % - are in 'moderate status', 29 % have 'insufficient quality' and 6 % are rated 'poor quality'.
Original languageDutch
PublisherInstituut voor Natuur- en Bosonderzoek
Number of pages87
Publication statusPublished - 2022

Publication series

NameRapporten van het Instituut voor Natuur- en Bosonderzoek

Thematic List 2020

  • Wildlife management

Cite this