Winter inversion of biomass and activity profile in a marine sediment

G Graf
1986 Marine Ecology Progress Series  
Analysis of marine sedlrnent from fie1 Bight (Baltic Sea) revealed increasing ETS-activity and heat production with increasing sediment depth down to 4 to 7 cm. A subsurface ATP-biomass maximum was found immediately above the Eh = +l00 mV layer in the sediment. This unusual situation is interpreted in terms of a better adaptation to low temperature by sulfate-respiring bacteria, compared to aerobic organisms in the sediment surface. The sediment showed high oxygen consumption but undetectable
more » ... but undetectable respiratory activity as measured by ETS-activity.
doi:10.3354/meps033231 fatcat:drfk5kxzlnexpezxlib5dj6btu