Oceans cover about 71% of the Earth's surface and are vital for regulating climate, supporting biodiversity, and providing resources. They are home to countless species, from tiny plankton to large whales, and play a crucial role in the global ecosystem. Fisheries are areas where fish are harvested for food and other products. Sustainable fishing practices are essential to prevent overfishing and ensure that fish populations remain healthy. Organizations like the Food and Agriculture Organization (FAO) work to promote responsible management of marine resources to protect both the oceans and the livelihoods of those who depend on them.