Reference : Fish lateral system is required for accurate control of shoaling behaviour
Scientific journals : Article
Life sciences : Environmental sciences & ecology
http://hdl.handle.net/2268/31748
Fish lateral system is required for accurate control of shoaling behaviour
English
Faucher, Karine mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Morphologie fonctionnelle et évolutive >]
Parmentier, Eric mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Morphologie fonctionnelle et évolutive >]
Becco, Christophe mailto [Université de Liège - ULg > Département de physique > Département de physique >]
Vandewalle, Nicolas mailto [Université de Liège - ULg > Département de physique > Physique statistique >]
Vandewalle, Pierre mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Morphologie fonctionnelle et évolutive >]
2010
Animal Behaviour
Academic Press
79
679-687
Yes (verified by ORBi)
International
0003-3472
London
United Kingdom
[en] Firehead tetra ; fish ; hair cell bundle ; lateral system ; neuromast ; shoaling behaviour
[en] In teleost fishes, the lateral system is assumed to contribute, among other roles, to maintaining schooling behaviour. Sight is also assumed to play a role in schooling, as fish with a cut lateral line do not stop schooling unless they are also blinded. This conclusion, however, is based on experiments where only the trunk lateral line was inactivated, leaving the head lateral system intact. We investigated how inactivation of the whole lateral system affects fish shoaling behaviour. Groups of firehead tetras, Hemigrammus bleheri, were videorecorded before and after inactivation of their whole lateral system with aminoglycoside antibiotics (and also in sham-treated specimens). Shoaling behaviour was characterized by nearest distance to the first, second and third neighbours, shoal radius, shoal order parameter and the number of collisions between individuals. Scanning electron microscope observations showed damage to most superficial neuromasts as a result of antibiotic treatment. Importantly, the antibiotic-treated fish proved unable to maintain a shoal. After the end of the treatment, however, they recovered both a normal tissue morphology and normal shoaling behaviour within about a month. The lateral system is thus more crucial to shoaling behaviour than previously believed.
Laboratoire de Morphologie Fonctionnelle et Evolutive
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Study of the implications of the acoustico-lateralis system in the ontogeny and dynamic of fish shoaling behaviour
Researchers ; Professionals ; Students ; General public
http://hdl.handle.net/2268/31748
10.1016/j.anbehav.2009.12.020

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