How Many Eggs Do Rainbow Trout Lay

Adult rainbow trout and steelhead lay their eggs in a series of nests in gravel.

How many eggs do rainbow trout lay. Trout eggs have black eyes and a central line that show healthy development. Receiving and disinfecting eggs. Then the female will cover the red with the gravel she originally removed.

A single female may lay 400-3000 eggs depending on her size. Once the nest is ready a male moves in to court her showing off by shaking his body. If she accepts his advance she moves to the nest and deposits her eggs deep into the nest.

During spawning the eggs fall into spaces between the gravel and immediately the female begins digging at the upstream edge of the nest covering the eggs with the displaced gravel. When they hatch the hatchlings are still attached to and survive on their yok sac. 2011-03-29 When the female is ready to spawn she moves to the bottom of the redd and presses her belly against the gravel.

Then 200 to 8000 eggs. A female trout can spawn from 200 to 8000 eggs during season. Key semi-intensive production figures of rainbow trout.

The life cycle of the Rainbow Trout continues into the egg stage again. In the wild of course the young trout are exposed to natural dangers. The fertilized eggs remain in darkness and undergo a process in the first hour of being laid called water hardening where the pores in the eggs seal.

At 45 F the eggs will hatch approximately 7 weeks after fertilization. The sticky eggs are now in the green egg stage and will remain so for approximately 20 days after spawning. The Life Cycle of Rainbow Trout.