Some of the key efforts include:

1. Fishing quotas: Governments and international organizations establish fishing quotas, which set limits on the amount of fish that can be caught within a certain time frame. These quotas are often based on scientific assessments of fish populations and aim to ensure that fishing activities don't exceed the capacity of fish stocks to replenish themselves.
2. Marine Protected Areas (MPAs): MPAs are designated zones in the ocean where human activities are restricted or regulated to protect marine ecosystems and biodiversity. MPAs can help restore depleted fish populations and improve the overall health of marine ecosystems.
3. Gear restrictions and bycatch reduction: Governments and international organizations implement regulations on fishing gear to reduce bycatch (unwanted or non-target species caught during fishing) and minimize the environmental impact of fishing activities. These restrictions may include banning certain types of gear or requiring the use of gear that allows non-target species to escape.
4. Fisheries management: Many countries have implemented fisheries management plans that aim to maintain the sustainability and productivity of their fishing industry. These plans may include measures such as catch limits, seasonal closures, and size limits, as well as monitoring, control, and surveillance systems to ensure compliance.
5. Sustainable seafood certifications and consumer awareness: Organizations like the Marine Stewardship Council (MSC) certify fisheries that meet their sustainability standards, helping consumers make more informed choices when buying seafood. Additionally, campaigns and education initiatives raise public awareness about the importance of sustainable seafood and the consequences of over-fishing.

Despite these efforts, challenges remain, as illegal, unreported, and unregulated (IUU) fishing continues to be a significant issue, and many fish stocks are still over-exploited.
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