Spawning: Facts, Discussion Forum, and Encyclopedia Article

All Topics

Spawning

	Email		Print
	Bookmark		Link

	Spawning
	Home Discussion
	Topics Spawning Topic Home Spawning is the production or depositing of large quantities of eggEgg (biology) Overview In most birds and reptiles, an egg is the zygote, resulting from fertilization of the ovum.... s in water. Types of egg-layers egg scatterers nest builders egg hangers mouth breeders egg buriers egg enlargement Spawn cycle Egg An egg sac or collection can be called a 'redd' as in 'salmon redd' for the eggs attached to the stream bottomStream bed A stream bed is the channel bottom of a stream or river or creek; the physical confine of the normal water flow.... . Specifically, a salmon redd is the space at the bottom of a stream that a spawning salmon makes for its eggs usually in a nest of rocks or scattered among the ground. Salmon eggs are typically a reddish, pink, or a yellow color. Alevin A newly-hatched fishFish A fish is a water-dwelling vertebrate with gills, that remains so throughout its life.... in the larvaLarva A larva is a juvenile form of animal with indirect development, undergoing metamorphosis .... l stage, one which has not yet emerged from the nesting area. Alevins will have a noticeable yolk sac, and need this yolk sac while their digestive systems are developing. At this stage, the fish are not prepared to hunt live prey, and are completely dependent on the yolk sacs. Fry A fry is a recently-hatched fish, one which has fully absorbed its yolk sac and can now hunt and consume live food. The fry of live-bearersLive-bearing aquarium fish Live-bearing aquarium fish, often simply called livebearers, are fish that retain the eggs inside the body and give bi... do not have a yolk sac and therefore need to begin feeding immediately after birth. Parr A parr is a juvenile fish, one preparing to leave the fresh waterFacts About Fresh water Fresh water is water with less than 0.5 parts per thousand dissolved salts.... s of its home. Smolt A smolt is a juvenile fish. This is the stage where Salmonid becomes physiologically adapted to saltwater and begins its trek to its salt waterSeawater Seawater is water from a sea or ocean.... environment. Grilse A salmonid, especially an Atlantic salmon, which is returning to its spawning grounds after just one year in the sea. See also Anadromous Reproduction Stream poolStream pool A stream pool, in hydrology, is a stretch of a river or creek in which the water depth is above average and the stream veloc...