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

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

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 18 times in Scopus Article | Citations

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Title Composition and succession of dinoflagellates and chrysophytes in the upper fast ice of Davis Station, East Antarctica
Author Thomson, PG
McMinn, A
Kiessling, I
Watson, M
Goldsworthy, PM
Journal Name Polar Biology
Publication Date 2006
Volume Number 29
Issue Number 4
ISSN 0722-4060   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-32644486257
Start Page 337
End Page 345
Total Pages 9
Publisher Springer
HERDC Category C1 - Journal Article (DEST)
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 degrees 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.
Keywords spring-summer transition
sea-ice
mcmurdo-sound
polarella-glacialis
pack ice
microbial communities
brine community
bottom-ice
biota
dinophyceae
DOI http://dx.doi.org/10.1007/s00300-005-0060-y   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
 
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Created: Wed, 28 Nov 2007, 14:16:08 CST