Figure 5From: Site-specific impacts on gene expression and behavior in fathead minnows (Pimephales promelas) exposed in situ to streams adjacent to sewage treatment plantsResults of behavioral observations. Asterices (*) indicate significant differences (t-test with Welch correction, P < 0.05) in the ability of males to occupy and defend nest over the period of the whole 4 (**) or just 2 (*) days of the test following a 48 h exposure period to site water.Back to article page