SciencePolitics

The herring fishery that took 400 years to rebound—and what it teaches us today

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Briefings

The herring fishery in the Baltic Sound collapsed between 1570 and 1600, halting trade and politics for centuries. It took nearly 400 years to recover, reaching comparable levels only by the 1950s. This recovery highlights the extreme fragility of historical fisheries and the long-term impacts of overfishing on global trade networks.

Key points

• The herring fishery in the Baltic Sound collapsed rapidly between 1570 and 1600, causing significant disruptions to trade, politics, and society across northern Europe.
• It took approximately 400 years for herring catches to return to levels comparable to pre-collapse periods, with the recovery phase beginning in the 1950s.

Context and limitations

Evidence covers only the collapse and recovery phases of the Baltic Sound fishery. Specific causes of the collapse remain unexplained, and long-term post-1950s impacts are not documented.

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