| http://www.w3.org/ns/prov#value | - Official URL: http://dx.doi.org/10.1080/08927019809378361 Abstract This study assessed the effects of substratum roughness, using two grades of silicon carbide sandpaper coupons, and river flow rate on the colonisation dynamics of.bacteria, heterotrophic flagellates and algae over a 16 week incubation period in the River Conder, UK. In the short-term i.e. up to 2 weeks, a combination of substratum
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