Journal article

Eco-engineering of modified shorelines recovers wrack subsidies

EMA Strain, T Heath, PD Steinberg, MJ Bishop



Wrack (stranded phyto-detritus) from terrestrial and marine sources is an important source of carbon and nutrients for many intertidal habitats. In urbanised estuaries, seawalls may act as a barrier to the transport of wrack between terrestrial and marine habitats and, where they reduce the width and habitat complexity of the intertidal zone, negatively impact on wrack accumulation and retention on estuarine shorelines. We assessed differences in the accumulation of wrack between natural (sandy beach, rocky reef and rockpools) and armoured stretches of shoreline, and the efficacy of eco-engineering interventions (man-made rockpools and planted saltmarshes) in enhancing the accumulation and r..

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University of Melbourne Researchers


Funding Acknowledgements

We thank the many people that helped in collecting, and processing the wrack samples, in particular, Ben Lucas and Vinicci Cheng. We thank the Editor and the 2 anonymous reviewers for their comment an earlier draft of the manuscript. We also thank the The Ian Potter Foundation, Harding Miller Foundation, The New South Wales Government Office of Science and Research and the Coastal Node of the NSW Office of Environment and Heritage Adaptation Hub for their financial support. This study was part of the World Harbour Project.