Reference : Comparing the EthoVision 2.3 system and a new computerized multitracking prototype syste...
Scientific journals : Article
Life sciences : Zoology
http://hdl.handle.net/2268/6098
Comparing the EthoVision 2.3 system and a new computerized multitracking prototype system to measure the swimming behavior in fry fish
English
Delcourt, Johann mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Biologie du comportement - Ethologie et psychologie animale >]
Becco, Christophe mailto [Université de Liège - ULg > Département de physique > Département de physique >]
Ylieff, Marc mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Biologie du comportement - Ethologie et psychologie animale >]
Caps, Hervé mailto [Université de Liège - ULg > Département de physique > Optofluidique >]
Vandewalle, Nicolas mailto [Université de Liège - ULg > Département de physique > Physique statistique >]
Poncin, Pascal mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Biologie du comportement - Ethologie et psychologie animale >]
2006
Behavior Research Methods
Psychonomic Society
38
704-710
Yes (verified by ORBi)
International
1554-351X
1554-3528
Austin
TX
[en] ethometry ; videotracking ; shoal multitracking ; multitracking ; EthoVision ; tilapia ; swimming behavior
[en] Coming from the framework of unmarked fry tracking, we compared the capacities, advantages, and disadvantages of two recent video tracking systems: EthoVision 2.3 and a new prototype of multitracking. The EthoVision system has proved to be impressive for tracking a fry using the detection by gray scaling. Detection by subtraction has given less accurate results. Our video multitracking system is able to detect and track more than 100 unmarked fish by gray scaling technique. It permits an analysis at the group level as well as at the individual level. The multitracking program is able to attribute a number to each fish and to follow each one for the whole duration of the track. Our system permits the analysis of the movement of each individual, even if the trajectories of two fish cross each other. This is possible thanks to the theoretical estimation of the trajectory of each fish, which can be compared with the real trajectory (analysis with feedback). However, the period of the track is limited for our system (about 1 min), whereas EthoVision is able to track for numerous hours. In spite of these limitations, these two systems allow an almost continuous automatic sampling of the movement behaviors during the track.
Unité biologie du Comportement, Laboratoire d'éthologie des Poissons et des Amphibiens
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
bourse FRIA
Researchers ; Professionals
http://hdl.handle.net/2268/6098

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