Implementing a light-based seagrass management approach for a large scale dredging program

Chartrand, Katie, McCormack, Catherine, and Rasheed, Michael (2012) Implementing a light-based seagrass management approach for a large scale dredging program. In: Proceedings of the 10th International Seagrass Biology Workshop. 01.2. p. 24. From: 10th International Seagrass Biology Workshop, 25 - 30 November 2012, Armação dos Búzios, Brazil.

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Abstract

Seagrass has been highlighted as a key ecosystem component at risk from port developments and associated dredging activities on the central east coast of Queensland Australia. Fisheries Queensland has developed a light-based approach to manage impacts on seagrasses from turbidity plumes associated with a large-scale port dredging program. In situ and laboratory seagrass shading tolerance studies were conducted to simulate the effects of a dredge plume-related reduction in light from increased turbidity. A review of historical seagrass trends at permanent transect monitoring sites throughout the region and associated Photosynthetically Active Radiation (PAR) data refined species-specific light requirements to develop a working light trigger value for a management intervention that would protect seagrasses from dredge plume impacts. This light-based approach is being trialed in parallel with turbidity management plans. The development, implementation and outcomes of this Light-Based Seagrass Management Approach will be presented.

Item ID: 45217
Item Type: Conference Item (Abstract / Summary)
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Also present at AMSA 2013: Shaping the Future: 50th Annual Conference of the Australian Marine Sciences Association, 1-7 July 2013, Gold Coast, Queensland.

Date Deposited: 30 Aug 2016 23:03
FoR Codes: 05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and Management > 050205 Environmental Management @ 50%
06 BIOLOGICAL SCIENCES > 0607 Plant Biology > 060705 Plant Physiology @ 25%
06 BIOLOGICAL SCIENCES > 0602 Ecology > 060205 Marine and Estuarine Ecology (incl Marine Ichthyology) @ 25%
SEO Codes: 96 ENVIRONMENT > 9605 Ecosystem Assessment and Management > 960503 Ecosystem Assessment and Management of Coastal and Estuarine Environments @ 100%
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