Documenting reef fish communities through surveys and collections across spatial and temporal scales is key to understanding changes of biodiversity across natural environmental gradients and local habitats, or to predict future trajectories in response to local and global stressors. Using a range of sampling and survey methods, we are building a comprehensive picture of fish communities within the Red Sea. Work will focus on the documenting fish communities in reef and non-reef habitats (e.g., mangrove, seagrass, macroalgae) to understand the connection and importance of habitats to ecosystem function and services. This focuses on conspicuous and cryptic fishes with opportunities to conduct field (diving, fish surveys and collections) and lab work (dissections, genetic barcoding).