In addition to protocol described above, a separate group of 10 parr were isolated at the time of field collection and maintained at a constant 16°C for 1 week prior to being measured for fork length (±1 mm), wet weight (±0.1 g) and individually tagged with visible implant elastomer (Northwest Marine Technology Inc.). Fish recovered for 60 h prior to CTMax testing on 4 July 2013 at 06:00 h. After testing, fish recovered at 16°C for 5 days prior to acclimation to 16–21°C for 36 days. The test was then repeated under the same conditions to evaluate the influence of the thermal cycle on CTMax.