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Figure 7


Fig. 7. {Sigma}CO2 uptake rates (µmol g-1 h-1) as a function of O2 uptake (µmol g-1 h-1) and {Sigma}H2S uptake rates (µmol g-1 h-1) by Riftia pachyptila. Four Riftia pachyptila were placed in high-pressure aquaria, maintained until autotrophy, then O2 and {Sigma}H2S concentrations were alternately increased from 27 to 130 µmol l-1 and 0 to 140 µmol l-1, respectively. All other substrates were held at `typical' in situ concentrations (see Materials and methods). All rates are expressed in terms of wet mass. Env., environmental.





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