Marine Monitoring Program: Annual Report Inshore Pesticide Monitoring 2022–23

Abstract

The pesticide analysis for the inshore Great Barrier Reef Marine Monitoring Program (MMP) was re-instated to facilitate seasonal monitoring of pesticides including addressing polar herbicides in previously identified high risk catchments. Throughout the 2022-23 wet season, ten fixed locations were monitored via passive sampling techniques. Additional grab samples were collected at each of the fixed sites and during reactive flood monitoring. The aim of the project was to re-initiate pesticide monitoring in the inshore region of the Great Barrier Reef taking into consideration recent eReefs diuron modelling results and continue monitoring in previously identified high risk catchments.