Light respiration (R_{light O2 micro}) of the hard coral species <i>Pocillopora damicornis</i> (clear circle) and <i>Pavona decussata</i> (clear triangle) are displayed as a function of 6 irradiances (mean ±s.e.m.; n = 2).

<p>Tukey honest significance difference test results are indicated, where capital letters are describing groupings for <i>P. damicornis</i> and lower case letters groupings of <i>P. decussata</i> (p<0.05).