Table 5 Ammonium concentrations during clove-oil-induced anesthesia in the marine medaka, Oryzias dancena, in a simulated transport experiment

Exposuretime (hours)	Dose (mgL-1)*
	Control	0.2	0.4	0.6	0.8	1.0
6	0.21±0.03a	0.17±0.02b	0.15±0.04c	0.14±0.05d	0.11±0.03e	0.07±0.01f
12	0.32±0.09a	0.27±0.05b	0.25±0.04c	0.23±0.03d	0.21±0.05e	0.20±0.04f
18	0.38±0.04a	0.35±0.04b	0.33±0.06c	0.32±0.03d	0.30±0.04e	0.28±0.04f
24	0.44±0.05a	0.42±0.07b	0.40±0.05c	0.37±0.03d	0.34±0.05e	0.31±0.08f
30	0.49±0.02a	0.46±0.04b	0.44±0.05c	0.43±0.04d	0.41±0.06e	0.38±0.07f
36	0.58±0.07a	0.55±0.07b	0.52±0.04c	0.50±0.06d	0.47±0.09e	0.43±0.05f
42	0.64±0.06a	0.61±0.05b	0.59±0.07c	0.56±0.03d	0.52±0.05e	0.50±0.07f
48	0.69±0.01a	0.66±0.05b	0.63±0.08c	0.60±0.09d	0.57±0.05e	0.54±0.08f

^* Each value is the mean±standard deviation (n = 60) of triplicate experiments. Values in the same column not sharing common superscripts are significantly different among doses (P<0.05).