| http://www.w3.org/ns/prov#value | - Bioturbation was estimated from sediment profile images (Canon 400D, 3900 ?? 2600 pixels, i.e. 10.1 megapixels, effective resolution 67 ?? 67 ??m per pixel) of the redistribution of particulate tracers (dyed sediment that fluoresces under ultraviolet light; 15 g luminophores aquarium???1, 125???250 ??m diameter) over a period of 6 days [76,77]).
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