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Composition and succession of dinoflagellates and chrysophytes in the upper fast ice of Davis Station, East Antarctica

Citation

Thomson, PG and McMinn, A and Kiessling, I and Watson, M and Goldsworthy, PM, Composition and succession of dinoflagellates and chrysophytes in the upper fast ice of Davis Station, East Antarctica, Polar Biology, 29, (4) pp. 337-345. ISSN 0722-4060 (2006) [Refereed Article]

DOI: doi:10.1007/s00300-005-0060-y

Abstract

Little is known of the wider Antarctic distribution of the upper fast ice community now comprehensively described from McMurdo Sound. We determined the fast ice protist community at Davis Station, East Antarctica and compared it with that of McMurdo Sound. As at McMurdo Sound, Davis fast ice is characterised by extreme and transitory salinities (96-2.5 psu) and temperatures (-4.5 to -0.1°C) during the spring/summer transition. Both communities are dominated by Polarella glacialis (an autotrophic dinoflagellate), chrysophytes and their life cycle stages. Furthermore, the physical parameters of brine temperature and salinity at which these successions occurred approximated those of McMurdo Sound. The high degree of similarity between the communities from the geographically disparate locations indicates that this community type has a circum-Antarctic distribution. Confirming the areal extent and seasonality of this community type will assist in future predictions of sea ice productivity. © Springer-Verlag 2005.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Marine and Estuarine Ecology (incl. Marine Ichthyology)
Objective Division:Environment
Objective Group:Ecosystem Assessment and Management
Objective Field:Ecosystem Assessment and Management of Antarctic and Sub-Antarctic Environments
Author:Thomson, PG (Mr Paul Thomson)
Author:McMinn, A (Professor Andrew McMinn)
Author:Watson, M (Miss Michelle Watson)
ID Code:42006
Year Published:2006
Web of Science® Times Cited:20
Deposited By:IASOS
Deposited On:2006-08-01
Last Modified:2007-05-14
Downloads:0

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