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IELTS Academic Writing Task 1: Salmon Life Cycle Diagram Sample Answer (Band 8+)

The Life Cycle of Salmon Fish Process Diagram (Analysis, Sample Answer & Tips)

If you are preparing for the Academic IELTS exam, process diagrams are an essential part of Writing Task 1. In this lesson, we will analyze the cement and concrete production process, learn the correct structure, explore useful vocabulary, and review a Band 8+ sample answer.

Question:

WRITING TASK 1

You should spend about 20 minutes on this task.
The diagrams show the life cycle of a species of 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.

IELTS Writing Task 1 Process Diagram Guide

Writing a process diagram requires a clear and logical explanation of how something works or is produced.

1. Follow the Correct Structure
  • Introduction: Paraphrase the question.
  • Overview: Summarize the main stages or features.
  • Body Paragraph 1: Describe the first process or initial stages.
  • Body Paragraph 2: Explain the remaining stages or second process.
2. Use Order Linking Words
At the beginning of the process, Then, In the next stage, After that, Finally, Subsequently.

3. Write in Present Tense & Passive Voice
Example 1 : The fish are known as fry.
Example 2: Salmon eggs are laid among reeds.

4. Identify the Process Type
Know whether the diagram is: Linear/ Lifecycle/ Reusable/ Renewable

5. Use Process Vocabulary
Useful words include: laid, hatch, spend, migrate, habitats, complete.

6. Use Process Sentence Verbs
Improve your writing with verbs such as: consists, remain, reach, measuring, become

Sample Answer

The process diagrams illustrate the life cycle of salmon, showing the different stages of their growth and the habitats in which they live.

Overall, the salmon life cycle consists of three stages, ending with adult fish returning to the upper river to lay eggs and begin the cycle again.

At the beginning of the process, salmon eggs are laid among reeds and small stones in the slow-moving upper river. They remain in this habitat for approximately five to six months before hatching. The newly hatched fish, known as fry, then migrate to the fast-flowing lower river, where they spend around four years growing. By the end of this stage, they reach a length of about 3 to 8 cm.

In the next stage, the fry develop into smolt, measuring approximately 12 to 15 cm, and migrate to the open sea. They stay there for roughly five years while continuing to mature. Finally, the fish become adult salmon, growing to around 70 to 76 cm in length, before swimming back to the upper river to lay eggs and complete the life cycle. (Total Words: 181)

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