The influence of wave energy and sediment transport on seagrass distribution
A coupled hydrodynamic and sediment transport model (Delft3D) was used to simulate the water levels, waves, and currents associated with a seagrass (Zostera marina) landscape along a 4-km stretch of coast in Puget Sound, WA, USA. A hydroacoustic survey of seagrass percent cover and nearshore bathymetry was conducted, and sediment grain size was sampled at 53 locations. Wave energy is a primary factor controlling seagrass distribution at the site, accounting for 73% of the variability in seagrass minimum depth and 86% of the variability in percent cover along the shallow, sandy portions of the coast. A combination of numerical simulations and a conceptual model of the effect of sea-level rise on the cross-shore distribution of seagrass indicates that the area of seagrass habitat may initially increase and that wave dynamics are an important factor to consider in predicting the effect of sea-level rise on seagrass distributions in wave-exposed areas.
Citation Information
Publication Year | 2012 |
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Title | The influence of wave energy and sediment transport on seagrass distribution |
DOI | 10.1007/s12237-011-9435-1 |
Authors | Andrew W. Stevens, Jessica R. Lacy |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Estuaries and Coasts |
Index ID | 70032235 |
Record Source | USGS Publications Warehouse |
USGS Organization | Pacific Coastal and Marine Science Center |