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Fish are aquatic animals that humans catch or farm and eat as a source of food and nutrition. Fish matter as food because they provide protein and other nutrients to billions of people worldwide and represent a significant part of global food systems.
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Channa striata stuffed with Thai herbs Fish for sale in baskets at the Dubai Fish Market Many species of fish are caught by humans and consumed as food in virtually all regions around the world. Their meat has been an important dietary source of protein and other nutrients in the human diet.
The English language does not have a special culinary name for food prepared from fish like with other animals (as with pig vs. pork), or as in other languages (such as Spanish pez vs. pescado). In culinary and fishery contexts, fish may include so-called shellfish such as molluscs, crustaceans, and echinoderms; but, more expansively, seafood covers both fish and other marine life used as food.