Hess Stream Bottom Sampler

Gravel and cobble bottoms in streams are effectively sampled with the Hess Sampler. The Canton modification is a stainless steel cylinder with two large openings covered with NITEX mesh. By attaching handles to either end of the sampler, penetration depths of 75 or 150 mm can be achieved in gravel or cobble stream bottoms. Water flow in through the upstream opening of the Hess Sampler and out through the downstream window and into the collection net and bucket. Flora and fauna contained in the stainless steel tube are washed into the collection bucket. Standard size is 500 microns and other sizes are available upon request.