Emerald Massey, Eckerd College, Biology Discipline
Jordan Sims, George Mason University, Environmental Studies and Policy Discipline
Jennifer Keck, Roatan Institute of Marine Science
Across the world, corals are threatened with extinction due to the rising threat of climate change and anthropogenic influences. Looking at the last couple of decades, more than 50% of the world's corals have died. With these threats, coral restoration has become an increasingly necessary area of research. In this study, I looked into the coral choice settlement in Roatan, Honduras during July of 2023 on the Meso-American Barrier Reef. The Roatan reef went under a Stony Coral Tissue Loss Disease (SCTLD) epidemic in 2020, and caused the ecosystem of the reef to alter from coral to algal dominant. In this study, 16 scientific dives were done, where eight marine protected and eight non-protected reef areas were surveyed. In total, 488 juvenile corals were measured in species identification, site morphology, and settlement substrates. I hypothesize that corals are selectively choosing to settle on regions with similar morphology. Analysis of the data showed trends in species-specific settlement patterns, suggesting that corals chose to settle on regions with similar morphologies. Corals presented significance in substrate settlement choice in relation to species. Finally, juvenile coral settlement was markedly altered in protected locations relative to marine non-protected areas. It is crucial to understand which coral species are settling after epidemics that cause coral die-offs so that restoration efforts can be appropriately done to help save our reefs from extinction. Understanding what choice settlement corals are demonstrating on current reefs after epidemics can heighten our efforts in reef restoration in consideration of corals' natural decisions.
For more information contact: edmassey@eckerd.edu