Article (Scientific journals)
Ontogeny of swimming movements in the catfish Clarias gariepinus
Mauguit, Quentin; Gennotte, Vincent; Becco, Christophe et al.
2010In Open Fish Science Journal, 3, p. 16-29
Peer reviewed
 

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Keywords :
Larvae; swimming ontogeny; catfishes
Abstract :
[en] The swimming movements of C. gariepinus larvae were recorded with a high-speed camera (400, 500 and 800 fps) from 0 to 336 hours post-hatching. Movements of adult fish were also recorded to provide information on the last developmental stage. Seven landmarks positioned on the fish midline were used during tail beating to determine various parameters during ontogeny and, on the basis of these parameters, to describe the first appearance of swimming movements and their development and efficiency during growth. Larvae were unable to swim at hatching (4 mm total length). Swimming movements were established at 48 hours posthatching when the fish measured between 7 and 8 mm total length and the yolk sac was more than 95% absorbed. At this stage, lateral excursion of the head appeared strongly reduced (from 13% to 6% of the total length). The efficiency of swimming movements increased throughout ontogeny, as did the homogeneity of the speed of the propulsive wave. Spontaneous swimming speed of 1 to 10 TLs-1 were observed in early stage (8-12 hPH). The various speed induced significant variations in parameters such as the amplitude of lateral head movements, swimming efficiency, and body rigidity. No major change was observed at the theoretical flow-regime transition.
Research Center/Unit :
AFFISH-RC - Applied and Fundamental FISH Research Center - ULiège
Disciplines :
Zoology
Aquatic sciences & oceanology
Author, co-author :
Mauguit, Quentin ;  Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Morphologie fonctionnelle et évolutive
Gennotte, Vincent ;  Université de Liège - ULiège > Centre de formation et de recherche en aquaculture (CEFRA)
Becco, Christophe ;  Université de Liège - ULiège > Département de physique > Département de physique
Baras, Etienne
Vandewalle, Nicolas  ;  Université de Liège - ULiège > Département de physique > Physique statistique
Vandewalle, Pierre ;  Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Morphologie fonctionnelle et évolutive
Language :
English
Title :
Ontogeny of swimming movements in the catfish Clarias gariepinus
Alternative titles :
[fr] Ontogénie de la nage chez le poisson chat Clarias gariepinus
Publication date :
2010
Journal title :
Open Fish Science Journal
eISSN :
1874-401X
Publisher :
Bentham Science Punlishers Ltd, Sharjah, United Arab Emirates
Volume :
3
Pages :
16-29
Peer reviewed :
Peer reviewed
Funders :
FRFC - Fonds de la Recherche Fondamentale Collective
FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture
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since 10 April 2010

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