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Life Cycle of a Trout HTML5


The trout is a fish that is part of the salmonidae family.

In the fall, the trout swim upriver to spawn in waters that are deep, fresh and well oxygenated. The female lays a few hundred thousand eggs depending on her weight. A year later, only a few trout grow to the adult stage. These travel toward the lakes. The anadrome species like the salmon travel to the ocean. Only a few that of them will reach maturity, allowing them to reproduce (about 6 for 1000 laid eggs).

The life cycle of the trout retraces the stages of its development, each characterized by and individual with a distinct behaviour.

Learning goals

  • To identify the different stages of sexual reproduction in an aquatic environment (external fertilization).
  • To understand the life cycle of salmonidae.

Learn more

A new individual is created when the male gametes and female gametes of the same species meet. Prior, the nuptial parade of the male permits him to attract a female, eliminating the other males.…

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