What caused the collapse of the North Atlantic cod fishery near Newfoundland and Labrador?

The collapse of the North Atlantic cod fishery off Newfoundland and Labrador was primarily driven by overfishing, exacerbated by the introduction of industrial-scale trawlers, sonar, and large-scale freezing technology.12

This crisis was compounded by significant government mismanagement and the reliance on flawed population models. These models were based on overly optimistic predictions regarding cod reproduction and survival, failing to account for environmental variables such as climate shifts. Additionally, abnormally low water temperatures in the late 1980s and early 1990s may have increased the susceptibility of the fish stocks to the intense fishing pressure, creating a scenario often described as a tragedy of the commons.123

The resulting 1992 moratorium, intended to allow the species to recover, led to a catastrophic socioeconomic collapse in the region, causing widespread unemployment and a significant population decline in Newfoundland and Labrador as communities lost their primary economic and cultural backbone.2