CONNECTIVITY OF CORAL POPULATIONS WITHIN THE SINGAPORE STRAIT

Abstract

The marine environment facilitates connectivity between populations, which is required for ensuring their continued propagation. Here I examined the predicted and realized connectivity patterns, and the genetic diversity of coral populations within the Singapore Strait. Using hydrological simulations and genetic markers, this study aimed to (1) enhance our knowledge on coral population dynamics, and (2) assess the long-term viability of these populations. The population genetics of two hard coral species with different reproductive strategies, Platygyra sinensis and Pocillopora damicornis, were analysed and compared to better understand local connectivity dynamics. A set of newly-developed microsatellite markers for P. sinensis was also described. This is the first detailed study on local coral connectivity. Identification of population connectivity patterns can help prioritize conservation efforts, and determine vulnerable versus stable populations; my findings can help support local coral reef managers¿ decision-making processes, especially in light of Singapore¿s need to balance economic and environmental concerns.