Inundation of saline supratidal mudflats provides an important source of carbon and nutrients in an aquatic system

Burford, M. A., Valdez, D., Curwen, G., Faggotter, S. J., Ward, D. P. and O'Brien, K. R. (2016) Inundation of saline supratidal mudflats provides an important source of carbon and nutrients in an aquatic system. Marine Ecology Progress Series, 545 21-33. doi:10.3354/meps11621

Attached Files (Some files may be inaccessible until you login with your UQ eSpace credentials)
Name Description MIMEType Size Downloads

Author Burford, M. A.
Valdez, D.
Curwen, G.
Faggotter, S. J.
Ward, D. P.
O'Brien, K. R.
Title Inundation of saline supratidal mudflats provides an important source of carbon and nutrients in an aquatic system
Journal name Marine Ecology Progress Series   Check publisher's open access policy
ISSN 0171-8630
1616-1599
Publication date 2016-03-08
Year available 2016
Sub-type Article (original research)
DOI 10.3354/meps11621
Open Access Status File (Publisher version)
Volume 545
Start page 21
End page 33
Total pages 13
Place of publication Oldendorf, Germany
Publisher Inter-Research
Language eng
Abstract ABSTRACT: Supratidal mudflats are a poorly understood habitat adjacent to coastal areas and are under pressure from human development and climate change. These habitats are only inundated infrequently but may be important contributors to coastal productivity. This study determined nutrient release and primary productivity (PP) on a large, pristine supratidal mudflat in the wet-dry tropics of Australia. Results of experimental studies on nutrient release and PP upon freshwater inundation were incorporated into a simple model of supratidal mudflat inundation based on remote sensing data and long-term river height data. The model was used to hind-cast potential annual primary production and nutrient release for a period capturing high and low inundation years. Our experimental studies measured a rapid release of nitrate, ammonium and phosphate in the first 2 d after inundation. Some days later there was measurable algal growth. Incorporating this data into the model showed that the main driver for the whole-system PP rates was the areal extent of inundation, rather than the duration of inundation, provided that inundation lasted longer than the minimum period for primary production to occur. The same was true for nutrient release although a shorter period of inundation was needed for release to occur. Future changes in flow and associated flooding, as a result of climate change and/or water resource development, could therefore have significant effects on productivity in these coastal systems.
Keyword Primary productivity
Benthic algae
Nitrogen
Phosphorus
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
HERDC Pre-Audit
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 0 times in Thomson Reuters Web of Science Article
Scopus Citation Count Cited 0 times in Scopus Article
Google Scholar Search Google Scholar
Created: Tue, 22 Mar 2016, 10:25:17 EST by System User on behalf of School of Chemical Engineering