Table 3. Overall behavioral measures of zebrafish in the novel tank test (Experiment 2).

In adult zebrafish, exposure to 7 days of chronic unpredictable stress (CUS) increased the distance traveled in the top and the number of top zone entries whereas 7 days of chronic prazosin treatment increased the time spent in the top of zone of the novel tank test (N = 16 − 18 in each group). See text for results of significance testing.

	Control/Vehicle N = 16		Control/Prazosin N = 18		CUS/Vehicle N = 17		CUS/Prazosin N = 18
Variable	M	SD	M	SD	M	SD	M	SD
Total distance moved (cm)	1075.90	611.65	1070.93	206.33	1162.93	349.64	1097.22	320.95
Mean ambulatory speed (cm/s)	5.83	2.60	5.21	1.07	5.31	1.05	5.13	0.96
Time immobile (s)	67.71	108.90	24.05	28.06	24.06	27.47	19.93	18.79
Number of entries to top	9.19	9.68	17.39	10.49	19.47	13.07	20.94	13.30
Total time in top (s)	34.78	40.07	67.42	44.41	63.59	45.87	74.91	49.61
Distance in top (cm)	140.69	160.39	236.92	173.72	294.23	207.33	271.54	161.64