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

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

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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.

Item Type: Article
Journal or Publication Title: Polar Biology
Publisher: Springer-Verlag
Page Range: pp. 143-153
ISSN: 0722-4060
Identification Number - DOI: 10.1007/s00300-006-0169-7
Additional Information:

The original publication is available at www.springerlink.com

Date Deposited: 07 Apr 2008 14:15
Last Modified: 18 Nov 2014 03:33
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