The diagram below show the life cycle of a species of large fish called the salmon. Summarise the information by selection and reporting the main features, and make comparisons where relevant.

The diagrams illustrate the changes in the habitats of

salmon

, which is a species of big fish, and the range of its body size in each stage.

Overall

,

it is clear that

salmon

have three main environments to live in, these places can vary

according to

salmons' growing stages, which can be divided into fry, smolt, and adult. Looking at the first diagram,

salmon

grow in the lower

river

where water is fast flowing,

this

period generally lasts for 4 years.

Next,

they go to the open sea and live for approximately 5 years.

Finally

, they come to the upper

river

, but the

river

here is full of reeds and small stones and

thus

water is moving more slowly. Salmons stay at the upper

river

for around 5-6 months and lay their eggs at the bottom of the

river

. Concerning life stages, there are three stages in the

salmon

’s life cycle with different sizes. The first is the youngest stage 'fry' and these fish usually have a 3-8cm body length.

Then

, after leaving the lower

river

, they become 'smolt', which have a body length of 12-15cm.

Salmon

become adults when they leave the open sea, and in

this

stage, they have fully grown and are 70-76cm long.