.
The research from \citet{Haynes_2007} also provides us with conceptual models of the GBR lagoon processes responsible for the change in water quality. They are a key component in the development of an integrated monitoring program to assess trends in ecological status of the GBR. Helping with the identification of the main threats, indicators of health and relationships between the latter, they are also important tools for the communicating the complexity of the ecologic systems \citep{Downs_2005}.