The number of samples and the Symbiodinium ITS2 DGGE profiles for each coral species from each site used in this study.

aThe coral species Acropora millepora, Pocillopora damicornis, Seriatopora hystrix, Porites cylindrica, massive Porites sp., Galaxea fascicularis and Favites pentagona used in this study. b The modes of Symbiodinium acquisition (Symb. Acqu.) employed by each coral species. Horizontal being from the environment (post-settlement) and vertical from maternal sources. cThe reproductive strategy of each coral species with either broadcast spawning gametes, larvae brooded in the parental colony or a combination of the two. dThe assigned Symbiodinium ITS2 DGGE profiles (Figures 1, 3). eThe Seep and control (Ctr) sites at Upa-Upasina (Upa-U), Dobu and Esa’ Ala (Esa’ A).