The given graphs illustrate the natural circular life of a salmon fish from an egg to an adult fish. As can be seen from the graph, there are mainly a 7-stage circle life, beginning with eggs was lay in fresh water and ending with spawning salmons die within 2 weeks after laying eggs in pure water.
At the beginning of salmon’s life circle, the lay eggs in fresh water may hatch in about 3 months in order to be alevins, which are described as a feed off yolk sacs. Then, it takes several weeks to transfer from alevins to fries. In the next stage, fried need at least 5 to 10 weeks growing and swimming to be parrs. In addition, parrs take several months to develops “finger” markings and becoming Smolts.
To be continueing salmons’ life cycle, the Smolts need from 1 to 3 years for their growth in order to be aldult salmons. Furthermore, these mature salmons will spend 1 to 6 years at sea in their timeline. After this period, these star to spawn and die within 2 weeks. And this circular will be maintain to their offspring later.
