The depression in which salmon deposit their eggs
(3 the spawning ground or nest of various fishes.
a nest excavated on the substrate by female Salmonidae
A salmon or steelhead spawning nest in gravel in which eggs are deposited.
A nest for egg deposition which the female salmon digs in the gravel on the river bottom using her tail.
A nest prepared by a female fish in the stream bed gravel, stones or sand, where she deposits her eggs. Typical for most trout and salmon.
_ A depression dug by spawning salmon in gravel into which eggs are laid.
A nest of fish eggs in the gravel of a stream or river bed. Spawning salmon dig a depression in the gravel by lying on their sides and hitting the gravel with their sides and tail, pumping the water to move the stones. After the female deposits eggs into the depression, the male salmon fertilizes them, then the female digs another depression just upstream to cover the eggs. The pair may do this three or four times. New redds usually look like mounds of light-colored gravel with a slight depression in the gravel just upstream of the mound.
the gravel nest of salmonid fishes
Area in gravel where fish bury their eggs.
A nest formed in river gravel by salmon and other fish.
the underwater gravel nest of spawning salmon. The female salmon create this nest by swishing some gravel away and making a depression in the gravel. This is where the female deposits her eggs.
a characteristic hollow in the bottom of the river or lake where salmonids lay their eggs
a nest in the stream substrate in which salmon and trout lay their eggs.
A spawning site for a pair of salmon, where eggs are buried in stream gravels for incubation and hatching.
Spawning bed or nest in a streambed created by spawning trout or salmon for burying their eggs.
A salmon nest, dug out of the gravel in the stream bed by the adult female.
area of stream or lake bottom excavated by a female trout during spawning.
A spawning nest, containing incubating eggs, made in the gravel bed of a stream or lake by a fish.
a hollow scooped in the sand or gravel of a riverbed by breeding trout or salmon as a spawning area.
A nest excavated in a gravel stream bed by a female salmon where fertilized eggs are deposited and develop.
A gravel area in a stream bed where a female salmon digs a hole and lays her eggs.
Fish spawning nest, or group of nests, dug in a gravel bed.
A nest created by a salmon or other fish to deposit its eggs. The redd is formed by the fish turning on its side and fanning the small gravel and sand downstream with powerful thrusts of the tail. A redd is comprised of a upstream pit and a downstream tailspill of gravel.
A gravel spawning nest formed in a river bed where eggs and sperm are deposited and fry rear to emergence. Surveys conducted by airplane to enumerate the number of redds are called aerial redd surveys.
A nest formed in river gravel by s...
a depression in streambed gravel dug by a female spawner where she deposits her eggs.