1. Department of Economics; James Cook University; Cairns Queensland Australia
2. Department of Economics & Centre for Tropical Water and Aquatic Ecosystem Research; James Cook University; Townsville Queensland Australia
3. Catchment to Reef Research Group & Centre for Tropical Water and Aquatic Ecosystem Research; James Cook University; Townsville Queensland Australia
4. Centre for Tropical Water and Aquatic Ecosystem Research; James Cook University; Townsville Queensland Australia