IB ESS 4.3.5 Fishery collapse
IB ESS 4.3.5 Fishery collapse

IB Environmental Systems and Societies syllabusESS SL/HLFirst assessment 2026
Practise analysing fishery collapse as a lasting fall in stock caused by demand, overfishing and weak management of capture fisheries.
How this is tested
- compare capture fisheries with aquaculture using stock decline and environmental impacts
- explain how overfishing can cause a lasting stock decrease,
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