Sur l'utilisation des criteres comportementaux pour determiner l'etat de sante et l'evolution probable des elevages de poissons marins. 1: Cas des prelarves et des larves de Diplodus sargus, Sparus aurata, Puntazzo puntazzo, Lithognatus mormyrus

In aquaculture and particularly during fish larval rearing when the time between moment of stress application and the non-return point acquisition is very limited, criteria which may provide health state and stock evolution are of great importance. Now, in stress responce chronology, the specific behavioral scheme modification is first noted. This early identification, associated with initial conditions restoration, generaly do not involve after effects. Ethological knowledge beeing the basis of this for-casting strategy, the authors define in this study a simplified behavioral scheme of four sparid larval species in a range of physiological conditions.