Coral reefs are sometimes referred to as 'canaries of the sea' because of their early warning ability to show near-shore oceanic stress. Because of their biological diversity, they are also called 'rainforests of the sea.' The research presented in this publication merits a great deal of notice because the output is useful for decision support and training tools in integrated coastal zone management (ICZM). The work on cost-effectiveness analysis has developed integrated economic and ecological models, relying extensively on fuzzy logic procedures to model impacts and effects of interventions within the reef environment. By contrast, the marine system valuation work provides economic valuations of coral reefs, demonstrating the use of different modeling methods and treating key policy issues within this context.