The diagram illustrates the life cycle of a large fish called salmon from eggs to adulthood.
Overall, there are a total of three stages in the salmon’s life cycle. It begins from laying eggs and culminates with a salmon that is ready to start the next generation.
In the first stage, salmon lay their eggs in the reeds beside small stones, in the upper river. Here, they spend about six months for the process. After that, the small fish called fry start growing here and move on to the lower part of the river, where the flow of water is comparatively high. They grow here for around four years and become 12-15 cm long, and they are called smolt.
In the last stage, they move on to the open sea where their growth takes place for 5 years, until they become adults. An average adult salmon grows to a size of 70-76 cm long, which is quite a good size. Furthermore, it is from the open sea that they travel to the upper river for laying eggs, when they become adults. Thus, the generation continues for the salmon fish in this way.