Table 1.

Seawater temperature during a system trial in 2012 (see Fig. 6). “Reef” refers to temperatures measured at the water intake. “Difference” indicates differences between target and average values with the exception of “Control”, where “difference” indicates the difference between “Reef” and “Control”

	Reef (°C)	Control (°C)	+1 (°C)	+2 (°C)	+4.5 (°C)
Average	26.569	27.141	28.490	29.287	31.495
SE	0.021	0.019	0.020	0.024	0.022
Difference		+0.572	+0.350	+0.146	−0.146
Temp. max.	28.841	28.866	30.318	31.153	33.287
Temp. min.	24.195	24.992	25.234	25.089	25.355