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Wolff, Nicholas H., Teixeirada Silva, Eduardo, Devlin, Michelle 
ORCID: https://orcid.org/0000-0003-2194-2534, Anthony, Kenneth R. N., Lewis, Stephen, Tonin, Hemerson, Brinkmane, Richard and Mumby, Peter J.
(2018)
Contribution of individual rivers to Great Barrier Reef nitrogen exposure with implications for management prioritization.
Marine Pollution Bulletin, 133.
pp. 30-43.
ISSN 0025-326X
Abstract
Dissolved inorganic nitrogen (DIN) runoff from Great Barrier Reef (GBR) catchments is a threat to coral reef health. Several initiatives address this threat, including the Australian Government's Reef 2050 Plan. However, environmental decision makers face an unsolved prioritization challenge: determining the exposure of reefs to DIN from individual rivers. Here, we use virtual river tracers embedded within a GBR-wide hydrodynamic model to resolve the spatial and temporal dynamics of 16 individual river plumes during three wet seasons (2011−2013). We then used in-situ DIN observations to calibrate tracer values, allowing us to estimate the contribution of each river to reef-scale DIN exposure during each season. Results indicate that the Burdekin, Fitzroy, Tully and Daintree rivers pose the greatest DIN exposure risk to coral reefs during the three seasons examined. Results were used to demonstrate a decision support framework that combines reef exposure risk with river dominance (threat diversity).
| Item Type: | Article |
|---|---|
| Faculty \ School: | Faculty of Science > School of Environmental Sciences |
| UEA Research Groups: | Faculty of Science > Research Groups > Collaborative Centre for Sustainable Use of the Seas |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 18 Aug 2021 11:38 |
| Last Modified: | 23 Oct 2022 02:40 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/81124 |
| DOI: | 10.1016/j.marpolbul.2018.04.069 |
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