Towards ecologically relevant targets for river pollutant loads to the Great Barrier Reef

► This study links river pollutant load reductions with GBR ecosystem outcomes. ► River TSS loads need to be reduced by 7,000 ktons/yr (41%) to achieve GBR water quality guidelines. ► River DIN loads need to be reduced by 6,000 tons/yr (38%) to achieve GBR water quality guidelines. ► If successful, current targets will accomplish 40% of TSS and 92% of DIN load reductions required. ► This highlights the need to establish ecologically relevant targets for river pollutant loads.