Figure 7. Variation of fauna and fluid environment with habitat at P-vent.

Abundance (mean and standard error; log transformed) of selected species in hot, warm and cool habitat at 11 months. Asterisk denotes abundance significantly greater than one or both other conditions (Table S3). Environmental conditions are displayed as box plots (median, quartiles, range) measured in vicinity of colonization surfaces with Alvin T-probe and electrochemical sensors coupled with T-probes.