Major hidden source of land-based nutrients affecting Australian estuaries (2025-2028)
Abstract
The project aims to investigate a previously undiscovered driver of declining water quality in Australian rivers and estuaries, namely organic and particulate nutrients. Innovative research approaches, which combine chemical characterisation, measures of ecosystem response and machine learning, will be used to unpack the complex behaviours of particulate matter in delivering a significant source of bioavailable nutrients affecting waterways. The insights of this project will enhance model predictions of water quality and inform catchment management approaches. The benefits include cleaner water, healthier estuarine habitats, more robust fishing and tourism industries, and protection of important sites such as the Great Barrier Reef.