Life cycle of salmonThe diagrams below show the life cycle of a species of a large fish called the salmon. Summarise the information by selecting and reporting the main features and make comparisons where relevant. Write at least 150 words.
The given diagram explains the lifespan of salmon.
Overall, there are totally four different stages in salmon's life, starting with eggs and continuing until they reach adult size.
At the beginning of the cycle, adult salmons lay a massive number of eggs in the upper river where the water flow is slow. The eggs are hidden under reed and small stones for about five to eight months until they hatch into baby salmons termed "fry" and measure three to eight centimetres in length. For approximately the next four years, these baby fish live in the lower and faster-moving water of the river.
When the salmons reach 12 to 15 centimetres long, they turn into a new stage called 'smolt'. At this time, they begin to migrant to the open sea where they spend about five years living. During this time, smolts grow quickly in size and reach 70 to 75 centimetres long to be called adult salmon. Finally, the adults swim upstream to reach the upper river where they reproduce a new generation and then the life cycle start again.
Life cycle of salmon