Eugenol in Cnesterodon decemmaculatus

Abstract

Anesthetics are commonly used in fish for surgery and to facilitate capture, handling and transport in aquaculture and experimental procedures. In our research, we used eugenol as an anesthetic for Cnesterodon decemmaculatus. The present base shows the induction time (i.e., time to reach anesthetic stage VI) and recovery time in individuals of C. decemmaculatus subjected to eugenol at a fixed concentration, according to sex and pregnancy status. Forty-one fish were divided into three groups: males, pregnant females and non-pregnant females. They were measured for total length (TL), standard length (SL) and weight, and the condition factor (K) was calculated.