A major output of this study will be to produce an integrated ecological assessment of the current ecosystem health of the Marovo Lagoon. This will be achieved by focusing on up to 3 different catchments or sources of pollutants to the lagoon. For each catchment we will estimate the pollutant input to the lagoon (Nutrients and sediment), potential flushing mechanisms for removing these pollutants from the lagoon and how various ecosystem health indicators vary along a transects from the pollutant source (river mouth) to a relatively pristine (oceanic influenced) section of the Marovo Lagoon. The areal extent of our assessment of ecosystem health will be expanded by the use of remotely sensed images to link regions where we have field data with regions of the lagoon that were not sampled but have similar spectral properties.