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Fish behaviour around the third of three fish migration barriers preventing (diadromous) fish (such as sea lamprey, among others) to reach the spawning habitats in the Demer basin
Contact: Coeck, Johan

Beschikbaarheid: Creative Commons License Deze dataset valt onder een Creative Commons Naamsvermelding 4.0 Internationaal-licentie.

Beschrijving
Longitudinal and lateral connectivity of rivers is necessary for fish to successfully fulfill their life cycle. In Flanders, fish are obstructed in their essential free migrations by weirs, sluices, mills, pumping stations, …, which are needed to control the water level. The river Demer drains the eastern part of the Scheldt basin. Fish migrating from the sea to the river Demer is obstructed by three hydraulic constructions. In this study we aim to evaluate the possibilities for fish migration around the most upstream of these three constructions, the Grote Steunbeer in the city of Diest. Therefore, behaviour of sea lamprey (Petromyzon marinus), roach (Rutilus rutilus), Wels catfish (Silurus glanis) and chub (Squalius cephalus) was investigated by acoustic telemetry in the areas up-, downstream and around the fish migration barrier. meer

The results indicate that free upstream fish migration in the river Demer is hampered by the Grote Steunbeer barrier in its current state, and that adaptions to this barier should get priority as the tributary of the Zwarte beek only partly offers an alternative route for fish to qualitative spanwning habitats upstream.

Scope
Thema's:
Biologie > Ecologie - biodiversiteit, Biologie > Vis
Kernwoorden:
Zoet water, Acoustic telemetry, Fish behaviour, Kuit schieten, Paaien, Migratie, Migration barriers, Tracking data, Belgium, Demer, Petromyzon marinus Linnaeus, 1758, Rutilus rutilus (Linnaeus, 1758), Silurus glanis Linnaeus, 1758, Squalius cephalus (Linnaeus, 1758)

Geografische spreiding
Belgium, Demer

Spreiding in de tijd
2014 - 2018

Taxonomische spreiding
Petromyzon marinus Linnaeus, 1758 [WoRMS]
Rutilus rutilus (Linnaeus, 1758) [WoRMS]
Silurus glanis Linnaeus, 1758 [WoRMS]
Squalius cephalus (Linnaeus, 1758) [WoRMS]

Bijdrage door
Universiteit Gent (UGent), meerdata creator
Vlaamse overheid; Beleidsdomein Omgeving; Instituut voor Natuur- en Bosonderzoek (INBO), meerdata creator

Gerelateerde datasets
Maakt deel uit van:
ETN data: fish acoustic receiver network, meer
LifeWatch observatory data: fish acoustic receiver network, meer

Dataset status: Afgelopen
Data type: Data
Data oorsprong: Sensor platform
Metadatarecord aangemaakt: 2018-01-02
Informatie laatst gewijzigd: 2018-01-02
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