NESP TWQ Round 2 - Project 2.1.6 - From exposure to risk: novel experimental approaches to analyse cumulative impacts and determine thresholds in the GBRWHA

Region map

Understanding cumulative impacts from multiple stressors is critical for successful management of the GBR under the Reef2050 Plan. The project produced experimental analyses of concentration-response relationships for selected species under broad, controlled envelopes of sediments, turbidity, nutrients, light, salinity and temperature. Based on new understanding of threshold exposure values, existing and new field data the project has enabled exposure maps for individual stressors to be produced and exploratory techniques to summarise those into cumulative exposure maps. Results have informed spatial and temporal assessments of ecological risks, and management opportunities for a range of activities in the coastal zones and inshore GBR waters.

Project Reports / Papers

Project reports, papers and presentations are available on the 2.1.6 project page on the NESP TWQ hub website.

Project Extension

This project was extended NESP TWQ Round 5 - Project 5.2 – From exposure to risk: Novel experimental approaches to analyse cumulative impacts and determine thresholds in the Great Barrier Reef World Heritage Area (GBRWHA)



Publication on
22 February 2019
PreviewThis dataset contains data from experiments testing the survival of fertilised Acropora millepora gametes before and after settlement in different climate and sediment treatment conditions.
Publication on
22 February 2019
PreviewThis dataset consists of one data file presenting data from 4 experiments conducted under aquarium controlled conditions manipulating levels of suspended sediments, temperature and nutrient enrichment.
Publication on
27 February 2019
PreviewThis dataset shows the measured response of early life history stages to different levels of nutrient enrichment and temperatures in experiments conducted in 2014-2015.
Publication on
29 January 2020
PreviewThis data contains consists of one Excel spreadsheet file containing the thermal stress data used to develop the Species Sensitivity Distribution described in the publication: Negri, A.P., Smith, R.A., King, O., Frangos, J., Warne, M.
Publication on
18 January 2019
PreviewThe aim of this study was to investigate the effects of the herbicide diuron and climate change on the Photosystem II activity of the seagrass Halophila ovalis.