Reference : Can turbulence statistics reflect the meso-habitat choice of juvenile salmonids
Scientific congresses and symposiums : Paper published in a book
Life sciences : Aquatic sciences & oceanology
http://hdl.handle.net/2268/12736
Can turbulence statistics reflect the meso-habitat choice of juvenile salmonids
English
Enders, Eva mailto [ > > ]
Ovidio, Michaël mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Démographie des poissons et hydroécologie >]
Hallot, Eric mailto [Université de Liège - ULg > Département de géographie > Hydrographie et géomorphologie fluviatile >]
Philippart, Jean-Claude mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Biologie du comportement - Ethologie et psychologie animale >]
Petit, François mailto [Université de Liège - ULg > Département de géographie > Hydrographie et géomorphologie fluviatile >]
Roy, Mathieu [ > > ]
Boyer, Claudine [ > > ]
Roy, André [ > > ]
2009
Proceedings of the combined conference on Hydro-Informatics and Ecohydraulics, Concepcion, Chile, January 2009.
1-10
Yes
International
Combined conference on Hydro-Informatics and Ecohydraulics, Concepcion, Chile, January 2009.
January 2009
Conception
Chile
[en] salmo salar ; turbulence ; behaviour ; Québec ; radio-telemetry ; habitat choice
[en] Variables commonly used to describe the physical habitat of Atlantic salmon Salmo salar L. parr are average velocity, water depth, and substrate. A variety of micro- and meso-habitat models have been developed using these variables to assess habitat quality. However, Atlantic salmon parr live in highly turbulent streams and rivers, in which intense fluctuations of water velocity occur. Laboratory experiments have shown that turbulence affects the behavior and energetics of fish. Nevertheless, habitat use in relation to the strong temporal variability of velocity in natural environments has rarely been studied. In this study, Atlantic salmon parr habitat was examined in relation to turbulence in the Patapédia River, Québec, Canada. We analyzed meso-habitat use in relation to several dynamic hydraulic variables. Our results revealed that in a natural turbulent condition, parr displayed high individual variability in habitat use in relation to turbulence. Such heterogeneous use of habitat suggests that individuals are not constrained to a single habitat type but that they have a tendency to use areas with lower turbulence.
Researchers
http://hdl.handle.net/2268/12736

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