No mortality was observed for the experimental periods. The weight and length of rockfish were measured just before exposure, at 2 and 4 weeks. Daily length gain, daily weight gain, condition factor, and hepatosomatic index (HIS) were calculated by the following method:
Daily growth gain=Wf−Wi/day, where Wf is the final length or weight, and Wi is the initial length or weight.
Condition factor (%)=(W/L3)×100, where W is the weight (g), and L is the length (cm).
HIS=(liver weight/total fish weight)×100