Fish stocks refer to the populations of fish within a specific area, often categorized by species. These stocks are crucial for both ecological balance and human activities, such as fishing. Sustainable management of fish stocks helps ensure that fish populations remain healthy and can reproduce effectively, supporting both marine ecosystems and fishing industries. Monitoring fish stocks involves assessing their size, health, and reproduction rates. This information is vital for setting fishing quotas and regulations to prevent overfishing. Organizations like the Food and Agriculture Organization (FAO) work globally to promote sustainable practices and protect marine biodiversity.