Sedimentation in a Salmon Stream

Abstract
Sediment was artificially added to a small southeastern Alaskan salmon stream. Observations in sediment and control riffles indicate that the amount of sediment settling to the stream bottom decreases exponentially with distance downstream. The dissolved oxygen content of intragravel stream water remained high in sedimented riffles. The added sediment was removed from stream-bed gravels by fall freshets and floods.