Fait partie de [OMC60]

2003 - 224 p.

Daily and annual physiological and behavioural rhythms in fish: Implications for the domestication of bluefin tuna

Falcón J., Besseau L., Boeuf G.

Dairy and annual rhythms represent one of the major components in the adaptation of organisms to their environment. Virtually all biochemical processes, physiological functions and behaviours are rhythmic. Photoperiod and temperature play a major role in the synchronization of the daily rhythms (Falcón, 1999; Boeuf and Falcón, 2001). As a consequence of the seasonal variations in daylength and temperature, processes such as development, growth and reproduction, follow a seasonal pattern. One of the requirements to achieve domestication of any fish species, including bluefin tuna (BFT), is the elucidation of the mechanisms by which information from external cues is integrated; this remains far from clear. We want to emphasize here the importance of the melatonin system as a key component in the integration of external information into a temporal message involved in the synchronization of functions and behaviours (see Falcón, 1999, for extensive details).

Mots-clés    

CROISSANCE, MELATONINE, PHOTOPERIODICITE, REPRODUCTION, TEMPERATURE, THUNNUS

Citer cet article    

Falcón J., Besseau L., Boeuf G. Daily and annual physiological and behavioural rhythms in fish: Implications for the domestication of bluefin tuna. In : Bridges C.R. (ed.), García A. (ed.), Gordin H. (ed.). Domestication of the bluefin tuna Thunnus thynnus thynnus. Zaragoza : CIHEAM, 2003. p. 61-63. (Cahiers Options Méditerranéennes; n. 60). 1. International Symposium on Domestication of the Bluefin Tuna Thunnus Thynnus Thynnus, 2002/02/03-08, Cartagena (Spain). http://om.ciheam.org/om/pdf/c60/03600093.pdf