Spatial and temporal variation in carbon storage in subtropical seagrass meadows

Simple item page
dc.contributor.authorSamper-Villarreal, Jen_AU
dc.contributor.authorLovelock, CEen_AU
dc.contributor.authorSaunders, MIen_AU
dc.contributor.authorRoelfsema, Cen_AU
dc.contributor.authorHua, Qen_AU
dc.contributor.authorMumby, PJen_AU
dc.date.accessioned2020-03-12T04:22:27Zen_AU
dc.date.available2020-03-12T04:22:27Zen_AU
dc.date.issued2016-10-17en_AU
dc.date.statistics2020-03-11en_AU
dc.description.abstractSeagrass meadows are one of three habitats that serve as marine carbon sinks, preserving up to thousands of years of carbon stored in their sediments. However, seagrass meadows are highly threatened and are continuing to decline worldwide. Seagrass management and conservation initiatives require adequate understanding of the spatial and temporal variability of carbon storage in these ecosystems, which is currently limited. This study aimed to identify how varying environmental and biological conditions influence spatial and temporal variability of carbon storage in subtropical seagrass meadows. Seagrass biomass and sediment cores were collected between the years 2012 and 2013 at multiple locations across a water quality gradient within Moreton Bay, Australia. The number of cores collected were 298 biomass cores, 298 shallow sediment cores, and 20 deeper sediment cores of up to 2 m sediment depth. Sediment carbon content and seagrass structural complexitywere determined for each location. Environmental variables were determined from field data (water quality) and modelled data (wave height). Spatial variability of carbon content was found among sites and linked to variations in seagrass canopy complexity, water turbidity, depth and wave energy. Sediment isotopic composition varied among locations, indicating variations in the contribution of carbon sources. Seasonal variability was limited and overshadowed by spatial variability. Millennial variation was observed, by dating the deeper sediment cores using 210PB and 14C. Carbon content, vertical accretion, isotopic composition, and carbon accumulation rates varied through the sediment column in Moreton Bay and were higher following European settlement. This study provides comprehensive results on spatial and temporal variability of seagrass sediments in Moreton Bay, which provides useful information for the developmentand implementation of blue carbon conservation and management initiatives.en_AU
dc.identifier.citationSamper-Villarreal, J., Lovelock, C. E., Saunders, M. I., Roelfsema, C., Hua, Q., & Mumby, P. J. (2016). Presented to 12th International Seagrass Biology Workshop (ISBW12), 17-23 October 2015, Nant Gwrtheyrn, Wales, (pp. 60). Retrieved from https://orbi.uliege.be/bitstream/2268/203574/1/ISBW12%20Programme.pdfen_AU
dc.identifier.conferenceenddate23 October 2015en_AU
dc.identifier.conferencename12th International Seagrass Biology Workshop (ISBW12)en_AU
dc.identifier.conferenceplaceNant Gwrtheyrn, Walesen_AU
dc.identifier.conferencestartdate17 October 2015en_AU
dc.identifier.govdoc7725en_AU
dc.identifier.pagination60en_AU
dc.identifier.urihttps://orbi.uliege.be/bitstream/2268/203574/1/ISBW12%20Programme.pdfen_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/9148en_AU
dc.language.isoenen_AU
dc.publisherWorld Seagrasses Associationen_AU
dc.subjectGramineaeen_AU
dc.subjectAquatic ecosystemsen_AU
dc.subjectCarbon sinksen_AU
dc.subjectAustraliaen_AU
dc.subjectEcosystemsen_AU
dc.subjectEnvironmenten_AU
dc.subjectSedimentsen_AU
dc.subjectWave forcesen_AU
dc.titleSpatial and temporal variation in carbon storage in subtropical seagrass meadowsen_AU
dc.typeConference Abstracten_AU
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
ISBW12 Programme(1).pdf
Size:
2.22 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Conference Publications