4.3.8—Mitigation strategies

Syllabus
First assessment 2026
Objective
4.3.8
Level
HL

Build a Layered Fishery Control

Effective fisheries combine controls that limit who fishes, how much is removed, when and where, and whether rules are obeyed.

International agreements can coordinate shared or migratory stocks; national permits and quotas cap participation and removal; local closed seasons, mesh sizes and no-take zones protect spawning, juveniles and habitat. Food labels and traceability let consumers avoid unsustainably harvested species, while monitoring and enforcement make every level credible.

A quota without a spawning closure can still remove breeding adults at the most sensitive time.

Each rule targets a different failure mode; combined controls reduce loopholes and protect recruitment.

A label or rule on paper is not management success without monitoring and credible enforcement.