The fundamental assumption embedded in most fishery management structures is that fish stay in roughly the same places year after year. Quotas are set by region. Permits are tied to specific areas. Processing infrastructure is built near historic fishing grounds. None of this is designed for the ocean we now have.
Species range shifts are documented and ongoing. Pacific cod has moved northward as the Bering Sea warms — the southern stock collapsed in 2020, while the northern stock held. Salmon runs that historically entered specific river systems are arriving at different times and in different numbers. Crab populations have crashed in areas where warm water events eliminated cold refugia.
The management systems that worked in a stable climate are being tested by an unstable one. Permit structures that tie fishermen to specific regions become barriers when fish have moved. GDST traceability systems that record “Bering Sea” as the harvest location have to contend with what that designation means when the relevant stock is no longer there.
