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Extraordinarily high biomass benthic community on Southern Ocean seamounts


Thresher, RE and Adkins, J and Fallon, SJ and Gowlett-Holmes, K and Althaus, F and Williams, Alan, Extraordinarily high biomass benthic community on Southern Ocean seamounts, Scientific Reports, 1 Article 119. ISSN 2045-2322 (2011) [Refereed Article]


Copyright Statement

Copyright 2011 The Authors.

DOI: doi:10.1038/srep00119


We describe a previously unknown assemblage of seamount-associated megabenthos that has by far the highest peak biomass reported in the deep-sea outside of vent communities. The assemblage was found at depths of 22.5 km on rocky geomorphic features off the southeast coast of Australia, in an area near the Sub-Antarctic Zone characterised by high rates of surface productivity and carbon export to the deep-ocean. These conditions, and the taxa in the assemblage, are widely distributed around the Southern mid-latitudes, suggesting the high-biomass assemblage is also likely to be widespread. The role of this assemblage in regional ecosystem and carbon dynamics and its sensitivities to anthropogenic impacts are unknown. The discovery highlights the lack of information on deep-sea biota worldwide and the potential for unanticipated impacts of deep-sea exploitation.

Item Details

Item Type:Refereed Article
Keywords:animal, Anthozoa, aquatic species, Australia, barnacle, biomass, ecosystem
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Community ecology (excl. invasive species ecology)
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the biological sciences
UTAS Author:Williams, Alan (Dr Alan Williams)
ID Code:119683
Year Published:2011
Web of Science® Times Cited:23
Deposited By:Ecology and Biodiversity
Deposited On:2017-08-03
Last Modified:2017-09-18
Downloads:138 View Download Statistics

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