Comment:

Check each current type that is present in the stream (including riffles and runs), definitions are: Torrential - extremely turbulent and fast flow with large standing waves; water surface is very broken with no definable, connected surface; usually limited to gorges and dam spillway tailwaters. Very Fast – turbulent flow that may make it difficult to stand and creates pulsating effect against leg. Fast - mostly non-turbulent flow with small standing waves in riffle/run areas; water surface may be partially broken, but there is a visibly connected surface. Fast current has sufficient energy to flow forcefully over objects. Sharp drop evident on depth rod. Moderate - non-turbulent flow that is detectable and visible (i.e. floating objects are readily transported downstream); water surface is visibly connected. With moderate current water flows around rather than over objects. Little drop around depth rod. Slow - water flow is perceptible, but very sluggish. Eddies - small areas of circular current motion usually formed in pools immediately downstream from riffle-run areas. Interstitial - water flow that is perceptible only in the interstitial spaces between substrate particles in riffle-run areas. Intermittent - no flow is evident anywhere leaving standing pools that are separated by dry areas.