Interactive comment on “Modelling the impact of Siboglinids on the biogeochemistry of the Captain Arutyunov mud volcano (Gulf of Cadiz)” by K. Soetaert et al
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reply: It is true that certain bacteria are able to bridge the gap between concentration fronts of oxygen/nitrate and sulfide. This is particularly true for the Thioploca rather than for Beggiatoa, and is mostly found in environments characterized with sharp gradients of oxygen and sulfide close to the sediment surface. During investigations at the Captain Arutyunov mud volcano a comprehensive sea floor imaging study was conducted but extended microbial mats were not observed at the sediment surface. There was one small patch (Sommer et al. 2009, Fig. 1,4). Hence, for the sulfide turnover of the
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Interactive comment on “Modelling the impact of Siboglinids on the biogeochemistry of the Captain Arutyunov mud volcano (Gulf of Cadiz)” by K. Soetaert et al
This is a very interesting study of the influence of frenulate siboglinids on the biogeochemistry of an active mud volcano. The authors demonstrate the alteration of oxygen, sulfide, sulfate, and methane profiles and flux rates by the activity of the frenulate worms. It also makes some strong predictions about the controls on the worm’s growth by the geochemical conditions it inhabits. This is ...
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Introduction Conclusions References
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