Figure 3.

Survival rate of V. anguillarum and V. ordalii against total protein extracts from C. gilberti epidermal mucus of juveniles weighing ~17 and ~178 g body mass (A) under normoxic and (B) hypoxic (acute and chronic) conditions. Data are expressed as optical density at 570 nm and presented as mean ± SD (n = 3). Index: C+: blank; G: gentamicin 50 µM (activity control); C−: bacterial growth control; normoxia: mucus extracts from fish in the normoxia group (7.8 mg L⁻¹ DO); hypoxia: samples from fish under the acute or intermittent hypoxia condition (2 mg L⁻¹ DO). Different letters indicate statistically significant differences between groups (p ≤ 0.05).