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Fig. 2. (A) O2 and
H2S and (B)
CO2
uptake rates (µmol g-1 h-1); (C) proton elimination
rates (µequivalents g-1 h-1), by Riftia
pachyptila as a function of seawater
H2S (µmol
l-1). The large arrow indicates that point at which
H2S was eliminated from the aquarium seawater. pH was
maintained at 6.1 and all other substrates were held at `typical'
concentrations (see Materials and methods). All rates are expressed in terms
of wet mass.