Seasonal patterns in diversity and abundance of the High Antarctic meroplankton: Plankton sampling using a Ross Sea desalination plant

Show simple item record Sewell, Mary en Jury, Jennifer en 2014-10-30T21:28:39Z en 2011-09 en
dc.identifier.citation Limnology and Oceanography, 2011, 56 (5), pp. 1667 - 1681 en
dc.identifier.issn 0024-3590 en
dc.identifier.uri en
dc.description.abstract The Antarctic marine environment is thermally stable, yet shows pronounced seasonality in the light : dark cycle, primary productivity, and the extent of sea-ice cover. Thorson’s Rule, predicting reduced meroplankton diversity at high latitudes, was based on the perceived difficulties in completing larval development at low temperatures and within the short summer period of phytoplankton production. Yet few studies have addressed seasonal patterns in Antarctic meroplankton diversity and abundance, especially in the High Antarctic. Here we circumvented logistical difficulties in conducting winter plankton sampling by using the 100-mm primary filter on the desalination plant at Scott Base in McMurdo Sound, Ross Sea (77u519S), to sample embryos and larvae. Using samples from an entire calendar year we found no seasonal changes in either embryo or larval operational taxonomic unit (OTU) diversity with season, no seasonal changes in embryo abundance (5000 L21), but a peak in larval abundance during the period of the summer phytoplankton bloom (maximum 295 larvae 5000 L21). While some OTUs showed a strong seasonality, there was also a high diversity of both embryos and larvae during the autumn and winter, and some OTUs were present in the meroplankton year-round. Annelids, molluscs, and echinoderms were dominant members of the Ross Sea meroplankton, showing similar prevalence to that seen at Signy (60u439S) and Adelaide Islands (67u34.59S). The use of the desalination plant primary filter allows plankton samples to be collected year-round, even in the High Antarctic with permanent sea-ice and 4 months of 24-h darkness en
dc.language EN en
dc.relation.ispartofseries Limnology and Oceanography en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from en
dc.rights.uri en
dc.subject MCMURDO SOUND en
dc.subject PELAGIC LARVAE en
dc.subject BETA DIVERSITY en
dc.subject COMMUNITY en
dc.subject REPRODUCTION en
dc.subject RECRUITMENT en
dc.subject COLD en
dc.subject BIODIVERSITY en
dc.title Seasonal patterns in diversity and abundance of the High Antarctic meroplankton: Plankton sampling using a Ross Sea desalination plant en
dc.type Journal Article en
dc.identifier.doi 10.4319/lo.2011.56.5.1667 en
pubs.issue 5 en
pubs.begin-page 1667 en
pubs.volume 56 en
dc.rights.holder Copyright: American Society of Limnology and Oceanography en
pubs.end-page 1681 en
dc.rights.accessrights en
pubs.subtype Article en
pubs.elements-id 221842 en Science en Biological Sciences en
dc.identifier.eissn 1939-5590 en
pubs.record-created-at-source-date 2014-10-31 en

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