Title: A survey of the density of starfish and sea urchins to determine the grazing pressure of these species on a sponge dominated reef, Cape Armitage
In order to determine the grazing pressure of starfish and sea urchin species on the benthic community of a reef at Cape Armitage, a survey was made of these species densities. The survey was stratified by depth. All individuals encountered in five 20m x 1m transects at each depth level were identified and measured. Each animal was examined in order to identify any species. Twelve further 1m x 1m quadrats were examined in detail specifically to look for smaller individuals.
Battershill, C.N. 1989 Distribution and abundance of benthic marine species at Cape Armitage, Antarctica - initial results. New Zealand Antarctic record 9(2): 35-52
Battershill, C.N. 1990 Temporal changes in Antarctic marine benthic community structure. New Zealand Antarctic record 10(1): 23-27