Complex sentence: Mariculture is a specialized branch of aquaculture involving the cultivation of marine organisms for food and other products in the open ocean, an enclosed section of the ocean, or in tanks, ponds or raceways which are filled with seawater.
Split into simpler sentences: Mariculture is a specialized branch of aquaculture involving the cultivation of marine organisms for food and other products either in the open ocean, or an enclosed section of the ocean. Some definitions of mariculture include any aquaculture application which raises marine organisms in tanks, ponds or raceways which are filled with seawater.