Fig 4. Stress-reactivity measured by scototaxis in 6-month old adult zebrafish A) Time course of average time spent at the bright side of the apparatus and B) overall average time spent at the bright side of the apparatus.

Adult zebrafish that had been developmentally exposed to ethanol spent more time on the bright side of the tank (F 2, 31 = 3.85, P<0.05). Post hoc t-test, ** P<0.01, * P<0.05.