Seabed Exposure and Ecological Disturbance on Australia's Continental Shelf: Potential Surrogates for Marine Biodiversity

ISBN-10
1921781548
ISBN-13
9781921781544
Category
Biodiversity conservation
Pages
55
Language
English
Published
2010
Authors
Peter Townsend Harris, Michael Glen Hughes, Brendan Brooke

Description

In this report we have used models of seabed sediment mobilisation to examine IDH [intermediate disturbance hypothesis] for Australia's continental shelf environment. Although other disturbance processes may occur (eg. biological, temperature, salinity, anthropogenic, etc.) our study addresses only the physical disturbance of the seabed by waves and currents. Our study has shown that it is feasible to model the frequency and magnitude of seabed disturbance in relation to the dominant energy source (wave-dominated shelf, tide-dominated shelf or tropical cyclone dominated shelf). In this report we have used models of seabed sediment mobilisation to examine IDH for Australia's continental shelf environment. --Executive summary.

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