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Calculate the range in the number of adult bluefin tuna between 1970 and 2020. teee tees
See it on the paper →People are concerned about overfishing of bluefin tuna. State what is meant by the term overfishing.
See it on the paper →One impact of catching turbot using nets is bycatch. Describe what is meant by bycatch. (iv) Turbot are caught on continental shelves. State three reasons why marine fisheries are often found on continental shelves.
See it on the paper →The French government has introduced laws to protect fish populations. Explain how net mesh size and closed seasons protect fish populations. MESH SIZO (3]
See it on the paper →Describe what is meant by bycatch.
See it on the paper →Suggest one reason why the shallow sea depth on Faroe Bank makes it easier to fish.
See it on the paper →Scientists state that cod on the Faroe Bank have been overfished. Explain how overfishing reduces the population of cod.
See it on the paper →Overfishing increases the quantity of bycatch. Define the term bycatch.
Comprehensive responses • Nearly all candidates gave a correct description of bycatch.
— Examiner report, February/March 2026, 0680/22 Q4(a)(i) (Cambridge)
Comprehensive responses • There were many responses showing understanding of how fishing net mesh size and closed seasons help restore fish populations. Some responses were specific in describing juveniles rather than smaller fish. Limited responses • Smaller fish could simply mean a smaller fish species, which does not answer the question.
— Examiner report, February/March 2026, 0680/22 Q4(c) (Cambridge)
The idea of bycatch was generally understood within this cohort, although some struggled to express their ideas clearly.
— Examiner report, May/June 2025, 0680/12 Q3(a)(i) (Cambridge)
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State the year when the total catch of cod was greatest.
See it on the paper →Suggest one reason why the shallow sea depth on Faroe Bank makes it easier to fish.
See it on the paper →Scientists state that cod on the Faroe Bank have been overfished. Explain how overfishing reduces the population of cod.
See it on the paper →Overfishing increases the quantity of bycatch. Define the term bycatch.
See it on the paper →State the year when the total catch of cod was greatest.
See it on the paper →Describe the relationship between the total catch of cod and the net migration of people shown in the graph between 1980 and 1993.
See it on the paper →Explain why a change in cod population changes the net migration of people in the Faroe Islands.
See it on the paper →Suggest three reasons why the government of the Faroe Islands allows pilot whales to be hunted.
See it on the paper →Pilot whales contain hazardous levels of toxic chemicals in their bodies. Explain how toxic chemicals bioaccumulate in pilot whales.
See it on the paper →Suggest two reasons why commercial fishing is a threat to vaquita porpoises.
See it on the paper →The major marine fisheries shown on the map are located near coasts and on continental shelves. Explain why these fisheries are in these locations. coasts continental shelves
See it on the paper →Many marine fisheries are found where ocean currents meet or are found on continental shelves. Explain how ocean currents and continental shelves affect the distribution of marine fisheries. ocean currents continental shelves Section B
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