“…Use of anesthetics is increasingly common in modern aquaculture and has practical relevance in diverse husbandry manipulations in addition to potentially attenuate physiologic response to stress (CUNHA et al, 2010;BECKER et al, 2012;PARODI et al, 2014 The essential oil of Aloysia triphylla (L'Herit) Britton (EOA) presented anesthetic efficacy in the freshwater silver catfish Rhamdia quelen (PARODI et al, 2014), but no studies in other fish species have been performed. The fat snook, Centropomus parallelus, is an inshore tropical euryhaline species with high flesh quality and market value, as well as significant aquaculture potential (BOUCHEREAU et al, 2000). Therefore the aim of this study was to investigate the anesthetic induction and recovery times of the EOA, its efficacy as a stress-reducing agent during the transport of fat snook and the influence of salinity on the effect of EOA.…”