Impacts of a large-scale flood event on sub-tropical intertidal seagrass meadows

McCormack, Catherine, Chartrand, Katie, and Rasheed, Michael (2012) Impacts of a large-scale flood event on sub-tropical intertidal seagrass meadows. In: Coast to Coast 2012: living on the edge: program and abstract book. p. 73. From: Coast to Coast 2012: Living on the Edge, 17-21 September 2012, Brisbane, QLD, Australia.

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Abstract

Long term monitoring of coastal seagrasses in the Port of Gladstone has provided the opportunity to better understand the impacts of extreme weather events on these marine plant communities. We studied the effects of a large-scale flood event in the summer of 2010-2011on seven intertidal seagrass meadows at Gladstone Harbour on the central east coast of Queensland. Significant declines in percent cover and above-ground biomass were recorded at several meadows following the weather event with some meadows yet to recover to pre-flood levels by early 2012. Seagrass condition, assessed quarterly and more recently monthly from November 2009 (and biannually from 2005 for some locations), was tested against potential drivers (rainfall, river flow, PAR, temperature and tidal exposure) using multiple linear regression analysis. We present the results from this analysis. We also present results of an investigation of the capacity for meadow recovery from a below ground seed bank.

Item ID: 45222
Item Type: Conference Item (Abstract / Summary)
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Date Deposited: 31 Aug 2016 01:22
FoR Codes: 05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and Management > 050206 Environmental Monitoring @ 50%
05 ENVIRONMENTAL SCIENCES > 0501 Ecological Applications > 050101 Ecological Impacts of Climate Change @ 25%
06 BIOLOGICAL SCIENCES > 0602 Ecology > 060205 Marine and Estuarine Ecology (incl Marine Ichthyology) @ 25%
SEO Codes: 96 ENVIRONMENT > 9603 Climate and Climate Change > 960305 Ecosystem Adaptation to Climate Change @ 25%
96 ENVIRONMENT > 9605 Ecosystem Assessment and Management > 960503 Ecosystem Assessment and Management of Coastal and Estuarine Environments @ 50%
96 ENVIRONMENT > 9610 Natural Hazards > 961002 Natural Hazards in Coastal and Estuarine Environments @ 25%
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