Information regarding different Acropora species (and other members of the Acroporidae) collected from different locations, and analyzed for the presence of hydroids.

The entire sample size was amplified using ITS1, and screened for the occurrence of hydroids, detected using the presence of a specific band in the gel. Among samples with a positive result for the presence of the band, ITS1, 16S, and 28S sequences of some samples were also obtained. Numbers of samples with the presence of hydroids and the relative sequences obtained are presented. In Acropora samples collected at Penghu (Taiwan) and in one Montipora sample collected at Kenting (Taiwan), the presence of hydroids was visually detected. For these samples, we obtained the sequence of the entire ITS fragment.