Britannica AI Icon

Quick Summary

Overharvesting, specifically overfishing, occurs when a natural resource like fish is exploited to the point where its supply is no longer sustainable. This practice depletes fish populations faster than they can reproduce, disrupting marine ecosystems and food chains. Historically, fishing methods evolved from simple hand-gathering to large-scale, mechanized operations.12

The fishing industry has seen significant technological advancements, leading to increased catches. However, this has also resulted in severe declines in fish stocks. For instance, the collapse of the North Atlantic cod fishery in the 1990s led to widespread unemployment and the commercial extinction of cod in the region. By 2017, nearly 90 percent of the world's marine fish stocks were estimated to be fully exploited or overfished, with large fish populations dwindling significantly.12

Overfishing contributes to a loss of biodiversity and can damage the economic health of communities reliant on fishing. Efforts to combat this include establishing exclusive economic zones (EEZs) to manage marine resources and creating marine protected areas (MPAs) to serve as safe havens for marine life. Despite these measures, illegal fishing and the impact of climate change continue to pose threats to fish populations.123

Summary created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Ask Britannica AI about this topic

Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.