Overfishing is a major concern for the sustainability of our oceans and the livelihoods of people who depend on them. To prevent overfishing, a number of measures have been put in place at both national and international levels:

1. Fishing quotas: Governments set limits on the amount of fish that can be caught, which are enforced through fishing permits and licenses.
2. Fishing gear regulations: Limits are set on the types of fishing gear that can be used, such as the size of fishing nets, to prevent the capture of too many fish at once.
3. Marine protected areas (MPAs): These are areas where fishing is prohibited or limited to protect fish populations and their habitats.
4. Traceability systems: These are systems that track fish from the time they are caught to when they are sold to ensure that they are caught legally and sustainably.
5. Consumer education: Consumers are encouraged to make sustainable seafood choices by choosing seafood that is certified as sustainably caught, or by avoiding seafood that is overfished or caught illegally.

The effectiveness of these measures varies depending on factors such as how well they are enforced, the level of compliance from fishermen, and the state of the fish populations in question. In some cases, such as the recovery of certain fish populations in the United States following the implementation of strict fishing regulations, these measures have been effective. However, in many other parts of the world, overfishing remains a significant problem despite these measures. It is a complex issue that requires continued efforts and collaboration between governments, fishermen, and consumers to ensure the long-term sustainability of our oceans and fisheries.
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