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Life in the Antarctic sea ice zone

Published online by Cambridge University Press:  27 October 2009

Gotthilf Hempel
Gotthilf Hempel
Affiliation:
Alfred-Wegener-Institute für Polar- und Meeresforschung, Columbusstraße, D-2850 Bremerhaven, Germany
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Abstract

Seasonal ice of the Southern Ocean, occupying some 15 x 106 km2, supports a distinctive biota based on algae that live on, within and immediately beneath the ice floes. How this annually-forming habitat recruits its biota, and the fate of the biota after the ice thaws in late summer, are little-known. Studies in the Weddell Sea in 1984–88 have shown that the seasonal ice is important as the wintering substrate of krill Euphausia superba which, together with other zooplankton and fish, supports a large breeding population of seals and penguins. Clearly a key habitat in the economy of the Southern Ocean, this seasonal ice is likely to be vulnerable to small climatic changes.

Type
Articles
Information
Polar Record , Volume 27 , Issue 162 , July 1991 , pp. 249 - 253
Copyright
Copyright © Cambridge University Press 1991

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