Transplant experiments. (a) Depth-dependent variations of Qm for Pocillopora verrucosa (closed circles) and Pavona gigantea (open circles) after 1 min of dark adaptation. Broken arrow lines indicate the origin and destination of the relocated colonies. The regression line for Pa. gigantea including the data collected from the transplants during 10 months (r2 = 0.978, p 0.0001) is very similar to the one obtained from the natural samples.