Sediment that is carried along the bottom of a river or stream, rather than in the current
The part of the total stream load that is moved on or immediately above the stream bed, such as the larger or heavier particles (boulders, pebbles, gravel) transported by traction or saltation along the bottom (Bates & Jackson 1987)
The sediment that moves by sliding, rolling, or bounding on or very near the streambed; sediment moved mainly by tractive or gravitational forces or both but at velocities less than the surrounding flow
Sediment or other material that slides, rolls, or bounces along a stream or channel bed of flowing water
The part of sediment transport not in suspension consisting of coarse material moving on or near the channel bed
Soil, rock particles, or other debris rolled along the bottom of a stream by the moving water, as contrast with the "silt load" carried in suspension
The larger or heavier particles of the stream load moved along the bottom of a stream by moving water and which are not continuously in suspension or solution