Why was fishing for herring banned between 1972 to 1976?

Fishing for herring was banned between 1972 and 1976 primarily due to significant declines in herring populations, which were attributed to overfishing and environmental changes. The ban aimed to allow the stocks to recover and ensure sustainable fishing practices in the future. Regulatory bodies implemented this moratorium to prevent further depletion and to restore ecological balance in affected marine ecosystems.