This NSF EPSCoR RII Track-1 project, the Guam Ecosystems Collaboratorium for Corals and Oceans (GECCO), will implement a systematic research agenda incorporating new knowledge of biodiversity, population genetics, genomics, phylogenetics, ecology, microbiology, oceanography, and mathematical modeling to document and predict the taxonomic and functional diversity of reef-builders and associated taxa in a changing environment. GECCO will enhance UOG cyberinfrastructure as a nexus for high-speed networks in the Pacific Rim and build high throughput computing capabilities for processing the big data sets generated by genomic and oceanographic components of this project. GECCO will also develop programs that promote STEM education and training, sustainability, and collaborative science. The vision of the GECCO project is to promote our understanding of the Micronesian region's biodiversity and identify solutions that promote the sustainability of coral reefs in rapidly changing environment across the tropical Pacific. GECCO's mission is to employ modern, cutting-edge methods to determine solutions that address the challenges imposed by climate change on coral reefs and associated ecosystems. Crucial to achieve this goal are documention of local and regional marine and aquatic biodiversity, the promotion of high-quality STEM education to grow a skilled workforce and improving sustainability of island communities.