Unit 4: Water and Aquatic Food Production
Topic 4.3: Aquatic Food Production Systems Questions
Practice 20 exam-style questions for IB ESS Topic 4.3. Review the question stems below, then unlock the full Question Bank to access markschemes, model answers, and AI grading.
1outline2 marks
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Outline two ways fishing quotas can help make capture fisheries sustainable.
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State one provisioning ecosystem service provided by aquatic systems.
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State one advantage of aquaculture for global food supply.
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Define the term capture fishery.
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Explain why fish stocks are described as renewable natural capital.
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State what the MSC label indicates to consumers.
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Define the term aquaculture.
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Define the term natural capital.
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Outline two ways aquaculture can reduce pressure on capture fisheries.
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Define maximum sustainable yield (MSY).
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Outline two regulating services provided by oceans or wetlands.
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State what is meant by the term bycatch.
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Define sustainable aquatic food production.
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Outline two cultural ecosystem services provided by aquatic systems.
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Table 1 shows annual catch and estimated MSY for three fish stocks. Identify which stock(s) are being harvested unsustainably.
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Table 1 shows the catch of a fish stock over three years and an estimated sustainable catch of 80 thousand tonnes. Using the data, identify the first year in which the stock is likely being overfished.
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Explain how overfishing can make a renewable resource effectively non-renewable.
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Suggest one reason why illegal, unreported and unregulated (IUU) fishing makes fisheries management difficult.
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Explain why escapees from fish farms can be a threat to wild fish populations.
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