IB ESS SL 4.3.6 Maximum Sustainable Yield Msy Questions
Interpret MSY and evaluate risks of harvesting beyond sustainable levels.
- Syllabus
- First assessment 2026
- Course
- ESS SL
- Level
- SL
Exam points
- define maximum sustainable yield as the greatest harvest rate that does not deplete a renewable stock, and calculate it from change in biomass or stock size
- explain how renewable natural capital, regeneration, MSY, catch limits and quotas can support sustainable aquatic food production and reduce overfishing or tragedy of the commons
- apply and evaluate aquatic resource management using evidence, balancing current harvest benefits against stock recovery, ecosystem protection and future generations
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IB ESS SL 4.3.6 Maximum Sustainable Yield Msy Questions question 1
Figure:Simplified map of the Lake Shergar area
the municipal-waste recycling chart shown above: A simplified diagram of the Lake Shergar area.
The lake provides a water supply for the local population.
With reference to the cattle in the area, explain how the maximum sustainable yield could be calculated.
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