Document of dataset 5880

Dataset record

Type
Dataset
title in English
Partly temporarily acoustic receiver network and partly permanent acoustic receiver network to assess diadromous fish migration in the Scheldt river basin, Belgium.
Description in English
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 weir on the river Dijle upstream of Mechelen formed partially a physical barrier for the upstream migration of fish to the upstream part of the Dijle basin and the total of the Demer basin. An attempt has been made to resolve the shortcommings of the weir as migration obstruction, by the setting of a fish migration position. Results showed that 21 of 35 fish were able to pass the weir at specific hydrological conditions and weir management options. The number of passages differed between species, but happened always in the periods that higher passage could be expected following their lifestyle. The study indicates the importance and benefits of a fish-friendly weir management. Next, a part of the receiver network of this study is maintained after the end of this study, to enable the tracking of large migratory species, such as eel and shad, which live and spawn, respectively, in the Scheldt river basin up to the rivers Dijle and Nete (confluencing in the river Rupel, which is a major tributary of the river Scheldt).
Abstract in English
This study aimed the evaluation of this fish migration position and if fish could pass the weir, by acoustic telemetry. A total of 35 fish were tagged of 5 different species and 2 hybrids: common carp (Cyprinus carpio), Wels catfish (Silurus glanis), European flounder (Platichthys flesus), roach (Rutilus rutilus), European eel (Anguilla anguilla), roach x rudd and roach x bream. We evaluated individual fish behaviour up-, downstream and near the weir and evaluatied if and when fish passed the weir.
License
https://spdx.org/licenses/CC-BY-4.0.html

Temporal coverage

Temporal
Start date
2015-01-01
End date
2018-01-01

Geographical coverage

Spatial
Belgium, Dijle R.
Belgium, Dijle R.

Thesaurus terms

Keyword
Acoustic telemetry
Acoustic Telemetry
Fish behaviour
Migration
Migration barriers
Spawning migrations
Tracking data

Themes

theme
Biology > Ecology - biodiversity
Biology > Fish

Taxonomic terms

Taxon keywords
Anguilla anguilla
Cyprinus carpio
Platichthys flesus
Rutilus rutilus
Silurus glanis Linnaeus, 1758

Ownerships

contactPoint
Johan Coeck
contactPoint
Instituut voor Natuur- en Bosonderzoek
creator
Johan Coeck
creator
Instituut voor Natuur- en Bosonderzoek
creator
Ine Pauwels
creator
Instituut voor Natuur- en Bosonderzoek
creator
Sophie Vermeersch
creator
Instituut voor Natuur- en Bosonderzoek

Dataset references

is part of
European Tracking Network (ETN) data
LifeWatch observatory data: fish acoustic receiver network

Special collections

part of special collection
European Tracking Network

Document metadata

date created
2018-01-03
date modified
2018-03-01