Abstract
The coral community and pH conditions were characterized at a shallow hydrothermal vent in Batangas, Philippines. Hard coral cover was 14.8 ± 12.5% (mean ± standard deviation) and made up of more than 26 hard coral TAUs (taxonomic amalgamation units). Seawater pH was highly dynamic, especially near the most active vent plume, ranging from a low of 6.12 to a high of 8.09 over the 10 m x 10 m site. Fourteen (14) coral TAUs were found within 1 m of this vent plume, suggesting they can persist under variable pH conditions. These results contribute towards understanding the response of coral communities under future climate change scenarios.
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