# Explain how fish farming can help improve food security.

> Edexcel GCSE Biology (1BI0) — 9.2 Food security · Explain · 4 marks

> Overfishing has caused a significant decline in wild fish populations worldwide. Fish farming is increasingly used as a method to produce fish commercially in enclosures.

## Mark scheme (4 marks)

1. Fish farming produces fish in controlled enclosures / commercial breeding of fish for food
2. Reduces pressure on wild fish populations / reduces overfishing
3. Increases the overall supply / availability of fish as a food source
4. This ensures populations have access to adequate amounts of safe and nutritious food / improves food security

## Key terms

- [fish farming](https://www.gradenine.co.uk/glossary/fish-farming)
- [food security](https://www.gradenine.co.uk/glossary/food-security)

## Related

- [Revision notes for Edexcel GCSE Biology (1BI0)](https://www.gradenine.co.uk/learn)
- [How to answer "Explain" questions](https://www.gradenine.co.uk/tools/command-word-cheatsheet)
- [Practice this with AI marking (free)](https://www.gradenine.co.uk/start)

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Source: [GradeNine](https://www.gradenine.co.uk/q/explain-how-fish-farming-can-help-9280b745) · Published by Druglandscape Ltd.