These larger streams remain well oxygenated because air is entrained by turbulent flow in riffles. Open canopy, and fairly shallow water, means that light can reach the river benthos, increasing ...

It picks up and puts down what is on the stream bottom, receives what comes off the land and carries downstream what it can, leaving behind what is more than it can lift. These flows and forces form ...

Because desert river channels do not feature the river bars, pools or riffles common in perennial streams, they decline in elevation downstream very smoothly. According to the researchers ...

2. Riffles and pools were introduced to the creek. Riffles are shallow, fast-moving segments of a stream where turbulent water breaks over cobble and gravel. Riffles assist in oxygenating stream water ...

In small streams, trout don’t have a ton of options when it comes to where to hold. While trout in larger rivers may congregate in a few large riffles or runs, you’ll find small stream trout ...

This debris molds the course of the stream, creating pools and shallow, fast-moving sections called riffles. The pools give spawning salmon a place to rest and young fish a place to hide ...

But I was wrong to think that trout don’t like riffles — those choppy, noisy stretches of rel­atively shallow stream where the water tumbles over rocks, rushes through little gullies and ...

many of the country’s – and thus the world’s – chalk streams are not reaching their ecological potential. In their flowing reaches, wild trout and grayling can patrol oxygen-rich riffles ...

No stream in Lancaster County has had as much ... Some 1,200 feet of Lititz Run at the conservancy is now being narrowed, fitted with riffles and other fish habitat, and its banks flattened ...

This restoration will remove the culverts and the asphalt cart paths, establishing riffles and pools along the streams, as well as replacing invasive plants with a riparian buffer of native plants." ...

The new research, Herbst added, shows that the same processes behind those riffles and pools also sort and select for differing assemblages of stream life. "Benthic macroinvertebrates, mainly the ...