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Age and growth of the cold-water scleractinian Solenosmilia variabilis and its reef on SW Pacific seamounts

Fallon, Stewart; Thresher, R.E.; Adkins, J

Description

Little is known about growth rates of deep-water reef-forming corals or the rates at which these reefs accumulate. Such information is critical for determining the resilience of the reefs to anthropogenic impacts such as trawling and climate change. We radiocarbon date live-caught and sub-fossil samples of the bioherm-forming coral Solenosmilia variabilis collected from precisely known depths and locations by means of a remotely operated vehicle on seamounts south of Tasmania, Australia. The...[Show more]

dc.contributor.authorFallon, Stewart
dc.contributor.authorThresher, R.E.
dc.contributor.authorAdkins, J
dc.date.accessioned2015-12-10T23:32:57Z
dc.identifier.issn0722-4028
dc.identifier.urihttp://hdl.handle.net/1885/69074
dc.description.abstractLittle is known about growth rates of deep-water reef-forming corals or the rates at which these reefs accumulate. Such information is critical for determining the resilience of the reefs to anthropogenic impacts such as trawling and climate change. We radiocarbon date live-caught and sub-fossil samples of the bioherm-forming coral Solenosmilia variabilis collected from precisely known depths and locations by means of a remotely operated vehicle on seamounts south of Tasmania, Australia. The growth rate of colonies live-caught between 958 and 1,454 m, which spans most of the depth range of the species locally, ranged from 0.84 to 1.25 mm linear extension yr-1 and tended to be higher in the deeper-caught material. Analysis of skeletal microstructure suggests annual deposition of growth increments near the growing tips, but not closer to the base, as the skeleton is extended and thickened. Dating of sub-fossil material indicates S. variabilis has been present on Tasmanian seamounts for at least the last 47,000 yrs and a reef accumulation rate of 0.27 mm yr-1.
dc.publisherSpringer
dc.sourceCoral Reefs
dc.titleAge and growth of the cold-water scleractinian Solenosmilia variabilis and its reef on SW Pacific seamounts
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume33
dc.date.issued2014
local.identifier.absfor040203 - Isotope Geochemistry
local.identifier.absfor040503 - Physical Oceanography
local.identifier.ariespublicationU3488905xPUB1911
local.type.statusPublished Version
local.contributor.affiliationFallon, Stewart, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationThresher, R.E., CSIRO Climate Adaption Flagship
local.contributor.affiliationAdkins, J, California Institute of Technology
local.description.embargo2037-12-31
local.bibliographicCitation.issue1
local.bibliographicCitation.startpage31
local.bibliographicCitation.lastpage38
local.identifier.doi10.1007/s00338-013-1097-y
local.identifier.absseo960808 - Marine Flora, Fauna and Biodiversity
local.identifier.absseo970102 - Expanding Knowledge in the Physical Sciences
dc.date.updated2015-12-10T11:23:25Z
local.identifier.scopusID2-s2.0-84893759879
local.identifier.thomsonID000330965000004
CollectionsANU Research Publications

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