Dr. David Suggett is a senior lecturer in marine and freshwater biogeochemistry at the University of Essex. He is also the assistant director of the Coral Reef Research Unit at the University of Essex and the scientific advisor for a Gulf of Mexico Ocean Observing System project. His research interests include the metabolism and productivity of tropical marine primary producers (microalgae including symbiotic zooxanthellae, macroalgae, and sea grasses), regulation of the light environment of symbiotic algae by the host, response of the coral–zooxanthellae symbiosis (acclimation and species “shuffling”) to environmental change, adaptive plasticity of zooxanthellae photosynthesis, benthic–pelagic coupling of reef community production, and sea turtle ecology and behavior. He is a PADI Rescue Diver.