Run: differs from a riffle in that, although the water surface is broken, the water depth is typically greater and the slope of the bed is less.
Glide - a section of stream characterised by moderately shallow water with an even flow that lacks pronounced turbulence. Although most frequently located immediately downstream of pools, glides are occasionally found in long, low gradient streams with stable banks and no major flow obstructions. The typical substrate is gravel and cobbles.
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