Marine biogeochemistry; oceanic CO2 and nitrogen cycle dynamics; carbon cycle in the North Atlantic, Indian and Arctic Oceans; air-sea CO2 exchange; ocean acidification, and coral reef calcification and calcifying plankton; oceanic dimethylsulphide cycling; testing new chemical and biological sensor technologies.

Genome structure and gene expression in marine invertebrates during normal growth and under conditions of environmental stress; the role of telomere biology in growth, longevity and evolution of marine invertebrates with focus on coral and sea urchins.

Organic geochemical (and inorganic) tracers to elucidate processes controlling the global carbon cycle; coupled physical and biological processes in the upper ocean controlling particle fluxes; mesopelagic biological reprocessing of particle flux; long-range atmospheric transport; atmospheric organic geochemical studies of terrestrial biogenic emissions.

Coral reproduction and determinants of fecundity; lunar periodicity to coral larval release; coral gamete, larval and juvenile development; coral larval settlement and recruitment success across Bermuda's different reef zones.

Hydrostation "S" time-series study; the influence of mesoscale eddies on upper-ocean biogeochemistry; inshore projects relating to Bermuda's local oceanography and meteorology; development of a general-purpose numerical circulation model for Bermuda's waters.

Biology of the coral-algal symbiosis, and understanding and quantifying how this relationship changes during conditions of altered environmental conditions (natural and anthropogenic); coral physiology; ecotoxicology; coral bleaching; coral disease; biomarker development; tropical/sub-tropical marine environmental issues and monitoring.

Environmental sciences; organic geochemistry; long range transport processes; deposition of chemicals in the oceans; atmosphere/ocean interactions; effects of chemicals on the marine environment; climate change and business interactions; ocean and human health.

Currently on leave from BBSR at the U.S. National Science Foundation, where he is Associate Program Director for Chemical Oceanography. Ocean, coral reef and riverine nitrogen cycling, from microscopic to macroscopic; giant diatoms; corals.

Ecological linkages between phytoplankton functional diversity and nutrient biogeochemical cycling; long-term patterns and controls on pico-phytoplankton diversity in the Atlantic; population-specific utilization of dissolved organic phosphorus, nitrogen and carbon substrates by phytoplankton; flow cytometry techniques as an investigative tool.

Tropical cyclones, climate variability and the global carbon cycle; development of models that can be used to calculate tropical cyclone wind speed exceedance probabilities; climate effects on tropical cyclone landfall probability.

Environmental geochemistry; air quality; long-range atmospheric transport of contaminants; persistent organic pollutants (POPs); sources, levels and fate of mercury in Bermuda; environmental analytical chemistry; environmental monitoring; marine ecotoxicology.

Structure, function and evolution of the photosynthetic apparatus; harmful algal blooms; biochemistry and molecular biology of marine phytoplankton and bacteria.

Marine geochemistry of trace metals, particularly iron, and their role in regulating marine primary production, ecosystem structure and carbon cycling; atmospheric deposition of trace metals into the ocean; paleoenvironmental records contained in marine sediments and Antarctic ice cores.

Currently serving as a lecturer for the Biology Department of Georgia State University. Long-term natural changes in mangrove, seagrass and coral reef ecosystems; effects of the Tynes Bay Incinerator and near-shore waste dump on the marine environment.

Population dynamics, ecology, ethology and physiology of cephalopods; coral reef biodiversity; bioinformatics; camouflage in 3-dimensional space; coral reef ecosystems; tropical marine invertebrate zoology; the use of digital photography in science; the effect of enrichment on invertebrates.

Global environmental change owing to both natural and anthropogenic processes; importance and role of the global coastal ocean; marine CO2 and carbonate geochemistry; uptake and fate of CO2 in Subtropical Mode Waters; ocean acidification: effects on marine calcifiers and coral reefs, calcium carbonate mineral dissolution and sediment composition.

Evaluating GCM results to better understand the impact of rising CO2 levels on calcifying organisms. Evaluation of low-frequency behavior in the NAO as it relates to climate change.

Harmful algal blooms and the identification of the genes necessary for saxitoxin synthesis; Cnidarian symbioses: molecular and functional variation of zooxanthellae; nutritional interactions between coral and symbiont; molecular basis for aging in sea urchins.

Functional genomics of corals; the significance of the molecular diversity of coral symbionts; biomarker development; biological impacts of climate change.