The Antarctic ecosystem

Abstract
The aim of the present paper is to summarize the broad scope of this Discussion and to attempt to draw certain final generalizations about the Antarctic as a biological zone. It is almost impossible to omit all mention of the sea from a discussion of Antarctic biology, and consequently a review of Antarctic oceanography and of food chains and biomasses at the various marine trophic levels will be given first. This leads in turn to a consideration of the interrelationships between sea, land and fresh water, and thence to an assessment of the total ecosystem.

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