Oceans are a source of food with approximately 200 billion pounds of fish and shellfish caught annually.
The provisioning service of food from capture fisheries and culturing activities is one of the primary services offered by the oceans to human societies. Fish, invertebrates, plants, and, in some cultures, marine animals and seabirds for direct eating or as food for aquaculture or agriculture are all included in this.
The ocean makes a much less overall contribution to the world's food supply. Despite making up 71 percent of Earth's area, the oceans only provide 2 percent of the world's caloric food supply. Without counting the billions of fish raised in aquaculture, it has been estimated that between 0.97 and 2.7 trillion fish are killed each year around the world when they are taken in the wild.
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