Fig. 5

Biogeographic zones in Drake Passage, as defined by cluster analysis (fourth root transformed density data, Bray Curtis Index, UPGMA clustering method) using 2000, 2001 and 2003 data sets
Biogeographic zones in Drake Passage, as defined by cluster analysis (fourth root transformed density data, Bray Curtis Index, UPGMA clustering method) using 2000, 2001 and 2003 data sets