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.
1calculate2 marks
Figure 1 shows fish production in Koral, a made-up island country, from 2010 to 2021 (illustrative data).
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2026
Define the term ocean acidification.
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Figure 1 shows fish production in the world, from capture fisheries and aquaculture, 1960-2020.
Using Figure 1, identify one reason for the trend shown in the curve for capture fisheries.
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Figure 1 shows fish production from capture fisheries and aquaculture in Kestan, a made-up country, 1990-2020.
Using Figure 1, identify one reason for the trend shown in the curve for aquaculture.
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Define the term marine protected area.
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Figure 1 shows fish production in Pacifica, a made-up country, 1960-2020.
Using Figure 1, identify one reason for the trend shown in the curve for capture fisheries.
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Figure 1 shows fish production from capture fisheries and aquaculture in Marovia, a made-up country, 1980-2020.
Using Figure 1, identify one reason for the trend shown in the curve for aquaculture.
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Figure 1 is a fact file on the Pacific halibut.
With reference to Figure 1, list two stakeholder groups whose cooperation could aid the recovery of the Pacific halibut.
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Figure 1 is a fact file on the cod of the North Sea.
With reference to Figure 1, list two stakeholder groups whose cooperation could aid the recovery of the cod of the North Sea.
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2026
Shrimp trawlers in the Gulf of Mexico also catch sea turtles and young fish.
State what is meant by the term bycatch.
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2026
Define the term capture fishery.
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Figure 1 shows fish production in Norvia, a made-up country, 1970-2020.
Using Figure 1, identify one reason for the trend shown in the curve for capture fisheries.
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Figure 1 shows fish production from capture fisheries and aquaculture in the world, 1990-2020.
Using Figure 1, identify one reason for the trend shown in the curve for aquaculture.
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Figure 1 shows fish production in Saba Bay, a made-up coastal region, from 2012 to 2022 (illustrative data).
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Phytoplankton make the open water of Lake Victoria green for most of the year.
Outline two things phytoplankton need in order to grow.
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2026
Lakes, rivers and the sea provide many ecosystem services.
State one provisioning service provided by aquatic systems.
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2026
State the gas whose rising concentration in the atmosphere causes ocean acidification.
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Figure 1 is a fact file on the Atlantic bluefin tuna.
With reference to Figure 1, list two stakeholder groups whose cooperation could aid the recovery of the Atlantic bluefin tuna.
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