The epipelagic zone is a shallow ocean area home to various fish, plant, and crustacean species. Popular fish that live in this zone include tuna, mahi mahi, mackerel, and barracuda, which prey on smaller fish. Although deep, some aquatic plant life like sargassum provides shelter and food. Crustaceans like lobsters and crabs are also important predators and decomposers. Physical features such as rock formations provide habitat, while water temperature, levels, and tides all impact the ecosystem.