CAIE IGCSE Biology 20.4.6 Conserving Fish Stocks Sustainably
Practise explaining how quotas, closed seasons, protected areas, mesh size, education and monitoring reduce overfishing.
- Syllabus
- 2026–2028
- Course
- Biology 0610
Exam points
- explain how closed seasons and protected areas allow fish to breed without capture
- use a larger mesh size to let immature fish escape and reproduce before harvesting
- link quotas, monitoring and enforcement to catches that do not exceed stock replacement
20.4.6—Fish stocks can be conserved using question 1
[Maximum number: 2]
The oceans contain fish stocks that can be managed as a sustainable resource to provide food for humans.
Fishing can be managed to promote the conservation of fish stocks.
Explain one way that fishing can be managed to conserve fish stocks.
method/way any one from:
closed seasons ; protected areas ;
quotas ;
education ;
smaller nets ;
larger mesh size ;
monitoring / legislation ;
explanation
allows fish to breed / prevents overfishing ;
1 mark for method/way and 1 mark for
explanation
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