Table 2. Overall behavioral measures of zebrafish in the novel tank test (Experiment 1).
Exposure to 7 days of chronic unpredictable stress (CUS) decreased the time spent in the top and marginally decreased the number of times fish entered the top zone of the novel tank in adult zebrafish compared to unstressed (control) fish (N = 25 in each group).
| Control | 7d CUS | |||||||
|---|---|---|---|---|---|---|---|---|
| Variable | M | SD | M | SD | t | df | p | Cohen’s d |
| Total distance moved (cm) | 1082.44 | 225.84 | 1191.60 | 364.03 | 1.274 | 48 | 0.209 | 0.360 |
| Mean ambulatory speed (cm/s) | 5.03 | 0.81 | 5.30 | 0.96 | 1.077 | 48 | 0.287 | 0.305 |
| Time immobile (s) | 13.26 | 9.99 | 15.42 | 17.11 | 0.544 | 48 | 0.589 | 0.154 |
| Number of entries to top | 20.00 | 13.12 | 14.12 | 7.90 | −1.920 | 48 | 0.061 | −0.543 |
| Total time in top (s) | 65.96 | 44.75 | 43.82 | 26.49 | −2.129 | 48 | 0.038 | −0.602 |
| Distance in top (cm) | 233.58 | 160.16 | 182.32 | 112.61 | −1.309 | 48 | 0.197 | −0.370 |