Seasonal recruitment and senescence in tropical deepwater seagrass meadows

Bryant, Catherine, Chartrand, Katie, Rasheed, Michael, Leith, Mark, Thomas, Ross, and Ralph, Peter (2014) Seasonal recruitment and senescence in tropical deepwater seagrass meadows. In: 51st Australian Marine Sciences Association annual conference: investigating our marine nation: abstracts. p. 139. From: AMSA 2014 Investigating our Marine Nation: 51st Annual Conference of the Australian Marine Sciences Association, 6-10 July 2014, Canberra, ACT, Australia.

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Seagrass habitats have been the focus of much attention in recent years with increasing recognition of the important role they play in sediment stabilisation, nutrient cycling, and as nursery and feeding grounds for fisheries species and megafauna such as dugong and turtle. With globally developing carbon markets, the role that seagrasses play in sequestering carbon is also becoming more widely recognised. But while shallow water seagrasses have been heavily researched, there are vast areas of seagrass habitat in deeper water which we know very little about. Within the Great Barrier Reef World Heritage Area alone, deepwater (>10m) seagrasses occupy more than 35,000 km2 of the reef lagoon. Predominantly comprised of smaller species, these communities are capable of rapidly turning over their biomass in a matter of days. Given the vast area of these meadows, the potential rate of carbon assimilation is significant. We present preliminary findings from the first two years of an ongoing research program investigating the major drivers of seasonal recruitment and senescence in tropical deepwater seagrass meadows. The program is providing information on seagrass abundance, seed bank status, productivity, benthic irradiance, temperature and spectral quality of light across three geographically distinct locations. Results will inform the development of local management strategies for mitigating impacts from coastal developments where dredging and associated plumes and ship movements threaten the long term survival of deepwater seagrasses.

Item ID: 45214
Item Type: Conference Item (Abstract / Summary)
ISBN: 9780987590817
Related URLs:
Date Deposited: 30 Aug 2016 23:46
FoR Codes: 05 ENVIRONMENTAL SCIENCES > 0501 Ecological Applications > 050102 Ecosystem Function @ 50%
05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and Management > 050205 Environmental Management @ 25%
06 BIOLOGICAL SCIENCES > 0607 Plant Biology > 060705 Plant Physiology @ 25%
SEO Codes: 96 ENVIRONMENT > 9605 Ecosystem Assessment and Management > 960507 Ecosystem Assessment and Management of Marine Environments @ 50%
97 EXPANDING KNOWLEDGE > 970105 Expanding Knowledge in the Environmental Sciences @ 50%
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