Sentences with phrase «gravel beds»

The new building was required to cover 8 acres of unstable gravel beds.

They are carnivorous, and they should be kept in a fairly thick sand / gravel bed where they will «dig in» and extend themselves vertically from the substrate.

Navigating first across the open ocean, and then up rivers, lakes, and streams, they return to the headwater gravel beds of their birth to deposit their own young before dying.

As a female salmon digs redds, the nests where she will lay her eggs, she helps create the conditions in which her eggs will thrive — a clean gravel bed under moving water.

Outdoor cultivated wasabi plants require a constant supply of cool, running water, a loose gravel bed, and shade from trees or cloth to protect their leaves from sunburn.

It has been down there for at least three million years, percolating slowly in a saturated gravel bed that varies from more than 1,000 feet thick in the North to a few feet in the Southwest.

Fragments of fossilized jaw, skull, and tooth, unearthed shortly before World War I from gravel beds, 45 miles south of London, were not, as had been believed, the remains of an aberrant part - human, part - ape «missing link».

Jet Boating in Pristine Wilkin's Valley The jet boat, that rides on a cushion of air at about 60 MPH, was invented by a New Zealand farmer who wanted to get his sheep to market via rivers plagued with shifting gravel beds, snags and other obstacles.

The waves rolls over a half rounded gravel bed at river lajas mouth.

Adult perch have done well in a greenhouse environment with only a pump to move water to gravel beds containing plants and beneficial nitrifying bacteria.

So rather than use the more time - intensive compacted gravel bed strategy under the EPS geofoam, the Pumpkin Ridge team opted for a bed of «flowable fill» (aka «controlled - density fill» or «liquid soil».)

I am interested in high food value plants, such as, Watercress, (which will grow very well in a moist gravel bed,) Bok Choi, Chard, Spinach and Beet root greens.

The gravel beds that the salmon need to lay eggs have disappeared under a thick layer of sand and silt.»

The construction of water mills caused the destruction of the gravel beds in streams, making them unsuitable for salmon to spawn.

Without periodic floods to scour the river bottom, silt below a dam buries the gravel beds where salmon spawn.

Gravel beds that once held the desert sands in check have been fractured by bunkers, weapons pits and trenches, and the tracks of fleets of tanks and trucks have compacted fragile soils and killed vegetation.

Like other Pacific Salmon, sockeye salmon spawn in the gravel beds of rivers and streams.

Since this is a modern car though, it won't try too hard to turn the moment into a visit to the gravel beds — the manufacturer will have sorted the geometry and the bushes in the rear suspension to keep the angles from going critical — but our driver is meanwhile keen to capitalise on what he has started.

Snails that crawl on hard surfaces are always potential escapees, while substrate dwellers rarely leave the sanctuary of their gravel beds.

You can find them in gravel beds, in creeks that cross the beach and at the edges of cliffs along the way.

The Coolidge caters for all experience levels, as the wreck itself lies on a gravel bed that gradually slopes from 20 to 72 metres.

Systems are primarily designed with a gravel bed that stores water until it can infiltrate into the ground.