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Protists in the marine ice of the Amery Ice Shelf, East Antarctica

Citation

Roberts, D and Craven, M and Cai, M and Allison, I and Nash, G, Protists in the marine ice of the Amery Ice Shelf, East Antarctica, Polar Biology, 30, (2) pp. 143-153. ISSN 0722-4060 (2007) [Refereed Article]

DOI: doi:10.1007/s00300-006-0169-7

Abstract

Samples of marine ice were collected from the Amery Ice Shelf, a large embayed ice shelf in East Antarctica, during the Austral summer of 2001-2002. The samples came from a site ∼90 km from the iceberg calving front of the shelf, where the ice is 479 m thick and the lower 203 m is composed of accreted marine ice. Protists identified within the marine ice layer of the Amery Ice Shelf include diatoms, chrysophytes, silicoflagellates and dinoflagellates. The numerical dominance of sea ice indicator diatoms such as Fragilariopsis curta, Fragilariopsis cylindrus, Fragilariopsis rhombica and Chaetoceros resting spores, and the presence of cold open water diatoms such as Fragilariopsis kerguelensis and species of Thalassiosira suggest the protist composition of the Amery marine ice is attributable to seeding from melting pack and/or fast ice protist communities in the highly productive waters of Prydz Bay to the north. © 2006 Springer-Verlag.

Item Details

Item Type:Refereed Article
Research Division:Earth Sciences
Research Group:Physical Geography and Environmental Geoscience
Research Field:Glaciology
Objective Division:Environment
Objective Group:Climate and Climate Change
Objective Field:Social Impacts of Climate Change and Variability
Author:Roberts, D (Dr Donna Roberts)
Author:Craven, M (Mr Mike Craven)
Author:Allison, I (Dr Ian Allison)
ID Code:45400
Year Published:2007
Web of Science® Times Cited:22
Deposited By:Centre for Ore Deposit Research - CODES CoE
Deposited On:2007-08-01
Last Modified:2011-11-24
Downloads:0

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