Reference : European silver eel (Anguilla anguilla L.) migration behaviour in a highly regulated ...
Scientific journals : Article
Life sciences : Environmental sciences & ecology
http://hdl.handle.net/2268/223921
European silver eel (Anguilla anguilla L.) migration behaviour in a highly regulated shipping canal
English
Verhelst, Pieterjan [> >]
Bayens, Raf [Research Institute for Nature and Forest (INBO) > > > >]
Reubens, Jan [Flanders Marine Institute > > > >]
Benitez, Jean-Philippe mailto [Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Laboratoire de Démographie des poissons et hydroécologie >]
Coeck, Johan [Research Institute for Nature and Forest (INBO) > > > >]
Goethals, Peter [Ghent University > > > >]
Ovidio, Michaël mailto [Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Laboratoire de Démographie des poissons et hydroécologie >]
Vergeynst, Jenna [Ghent University > > > >]
Moens, Tom [Ghent University > > > >]
Mouton, Ans [Research Institute for Nature and Forest (INBO) > > > >]
Oct-2018
Fisheries Research
Elsevier
206
176-184
Yes (verified by ORBi)
International
0165-7836
Netherlands
[en] Diadromous ; Canal ; Migration ; Water regulation ; shipping locks
[en] Among the many man-made structures that facilitate shipping, navigable canals take an important position. These canals may offer energetically favourable migration routes for diadromous fish, but they may also obstruct fish migration, for instance at shipping locks. Because the use of shipping canals by, and their effects on, mi- grating fish remain unknown, we assessed whether these canals can play a significant role in the migration of the critically endangered European eel. Only one third of 70 acoustically tagged silver eels completed migration through a shipping canal, and did so at a very low pace (average < 0.06 m s−1) due to delays at shipping locks and most likely also due to the disruption of water flow. These delays may come at an energetic cost, hampering the chances of successful migration. Knowledge on the impact of shipping canals on diadromous fish is crucial for proper management regulations. For instance, the observation that eels mostly migrated at night and during spring and autumn can support water managers to define adequate measures to improve eel migration in shipping canals.
Freshwater and OCeanic science Unit of reSearch - FOCUS ; Applied and Fundamental FISH Research Center - AFFISH-RC
http://hdl.handle.net/2268/223921
10.1016/j.fishres.2018.05.013

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