Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual current impact factor. Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence agreement may be applicable.
[Show abstract][Hide abstract] ABSTRACT: The influence of oxygen distribution in a shallow water on the spatial distribution of the macrobenthic fauna has been investigated. We studied both the bathymetric and the vertical distribution in the sediment in order to assess the biological importance of oxygen microstratification. Oxygen concentrations in the water column were measured with a Clark Au-Ag electrode (WTW EO 196). Oxygen concentrations at the sediment-water interface and in the sediment were measured directly in core samples with Clark-style micro-electrodes (Diamond 737GC). Our results indicate that the composition of the macrobenthic community is well correlated with the bathymetric distribution of oxygen in the water column. However, some burrowing chironomid species appear to be dependent on the oxygen at the sediment-water interface. Our conclusion is that the respiratory environment of benthic animals (cf. Brundin, 1951) is broader than expected, very specific, and linked to their vertical distribution in the sediment.