Efficacy of 2-Phenoxyethanol as an Anaesthetic for Adult Redline Torpedo Fish, Sahyadria denisonii (Day 1865)

Table 1

Stages of anaesthesia used to determine the efficacy of 2-phenoxyethanol for Sahyadria denisonii (modified from Marking and Meyer [3], Trzebiatowski et al. [21], and Summerfelt and Smith [22]).

	Observation
Induction stage
I	Start of anaesthetic effect, slow swimming, and physiological position
II	Partial loss of body balance, body turning to one side, and decreased locomotor activity
III	Complete loss of body balance, flank position at the bottom of tank, and reaction only to very strong tactile pressure
IV	No response to external touch or stimuli and total loss of equilibrium
Recovery stage
I	Start of fin movement and fish still lays on the bottom of the tank
II	Regular breathing, nonmoving tilting on flank position, and irregular fin movement
III	Physiological position and increased locomotor activity
IV	Ability to swim normally and regular operculum rate