Year

2011

Degree Name

Bachelor of Science (Honours)

ANZSRC / FoR Code

040301 Basin Analysis, 040307 Ore Deposit Petrology, 040310 Sedimentology

Department

School of Earth & Environmental Sciences

Abstract

Surface Elevation Tables (SET) and Marker Horizons (MH) were established within mangrove and saltmarsh in 2001 to establish the elevation and accretion dynamics and trends of the study site. Current surface elevation trajectories were much lower than average local sea-level rise over the study period and compared to longer-term local sealevel trends. Surface elevation appeared to be associated with fluctuations in groundwater levels and hence linked with El Niño and La Niña patterns. In accordance with models of sea-level rise impacts on mangrove and saltmarsh communities, photogrammetric mapping of the study site for the period 1938 to 2011 indicated mangrove encroachment of saltmarsh was evident and in recent years consolidation of mixed zones by mangroves.

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