The many eggs that are laid are retained for the duration of the incubation period. Following the completion of the incubation period, they go through emergence, where the fish's body and head are formed. They later develop into young salmon, which are then transported to an estuary for further rearing. The ocean is where they go to grow and mature, though, from the bay. Oceanic cycles two and three take place after that. They consume food and continue to expand until these little fish reach salmon-sized proportions. Once they are mature and in their adolescence, they begin their return trip to river water to spawn. Then, in order to regenerate, they swim from the ocean to the river. The life cycle of these salmon resumes in the river when they begin to reproduce once more.

Overall, it is clear that the phase began with freshwater rearing in river water at the incubation stage, moved to the ocean for the following stages. And then it ended. For all of the eggs, the procedure is repeated. Incubation and emergence in the river are the first phases of salmon fish development. Freshwater rearing takes place in the interim, after which the entire population migrates to the ocean. In addition, before reaching the ocean, there is a common region called an estuary where estuary rearing takes place. After that, it goes to places in the back. Even yet, over a period of time, the growth and maturation will take place in the ocean's water, and then the organisms will migrate to spawning grounds there. Additionally, the fish moved back to the river's water to spawn, and the cycle from incubation to spawning was repeated.

Overall, it is evident that the phase started with freshwater rearing in river water during the incubation stage. It then migrated to the ocean for the following stages, and ultimately came to an end. The process is carried out once more for each egg. The early stages of salmon fish development are referred to as incubation and emergence in rivers. In the interval, freshwater rearing occurs before the entire population moves to the ocean. Additionally, there is a common area called an estuary where estuary rearing happens before reaching the ocean. Once it is done, it travels to locations in the back. Even so, the creatures will grow and mature in the ocean's water over time, after which they will migrate to its spawning grounds. The cycle of incubation and spawning was repeated as the fish relocated back to the river's water to lay their eggs.