Reference : Escapement Success And Patterns Of Downstream Migration Of Female Silver Eel Anguilla An...

	Document type :	Scientific congresses and symposiums : Poster
	Discipline(s) :	Life sciences : Zoology
	To cite this reference:	http://hdl.handle.net/2268/124058

Title :	Escapement Success And Patterns Of Downstream Migration Of Female Silver Eel Anguilla Anguilla In The River Meuse
Language :	English
Author, co-author :	Verbiest, Hilde [Research Institute for Nature and Forest (INBO) > > > >]
	Breukelaar, André [Rijkswaterstaat Waterdienst > > > >]
	Ovidio, Michaël [Université de Liège - ULg > > Laboratoire de Démographie des Poissons et d'Hydroécologie (LDPH) > >]
	Philippart, Jean-Claude [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Biologie du comportement - Ethologie et psychologie animale >]
	Belpaire, Claude [Research Institute for Nature and Forest (INBO) > > > >]
Publication date :	May-2012
On invitation :	No
Audience :	International
Event name :	6th World Fisheries Congress Sustainable Fisheries in a Changing World
Event date :	7-11 May 2012
Event place (city) :	Edinburgh
Event country :	Scotland
Keywords :	[en] Anguilla anguilla ; silver eel ; downstream migration ; telemetry ; River Meuse
Abstract :	[en] Downstream migration of female silver eel Anguilla anguilla (L.) was studied by remote telemetry in the lower part of the River Meuse (Belgium and The Netherlands) using a combination of 9 detection stations and manual tracking. N=31 eels (LT 64-90cm) were implanted with active transponders and released in 2007 into the River Berwijn, a small Belgian tributary of the River Meuse, 326 km from the North Sea. From August 2007 till April 2008 13 eels (42%) started their downstream migration and were detected at two or more stations. Mean migration speed was 0.62 m.s-1 (or 53 km.day-1). Only two eels (15%) arrived at the North Sea, the others being held up or killed at hydroelectric power stations, caught by fishermen or by predators or stopped their migration and settled in the river delta. A majority (58%) of the eels classified as potential migrants did not start their migration and settled in the River Berwijn or upper Meuse as verified by additional manual tracking.
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/2268/124058

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	Fulltext file(s): File Commentary Version Size Access Open access Verbiest et al 6th WFC Edinburgh Silver eel migration on R Meuse-1.pdf Author postprint 940.18 kB View/Open

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