Pelagic fish
Pelagic Fish
Pelagic fish (/pɪˈlædʒɪk/; from Greek πέλαγος, pélagos 'open sea') are species of fish that live in the water column of coastal, ocean, and lake waters, but not on or near the bottom of the sea. The word "pelagic" is derived from Ancient Greek πέλαγος (pélagos), meaning 'open sea'.
Pelagic fish can be categorized into two types: coastal and oceanic. Coastal pelagic fish inhabit the relatively shallow and sunlit waters above the continental shelf, while oceanic pelagic fish live in the wide open ocean, often at great depths.
Characteristics
Pelagic fish are free-swimming and often migratory. They are usually powerful swimmers with streamlined bodies capable of sustained cruising on long-distance migrations. The tuna, for example, is an oceanic pelagic fish that can live for up to 50 years and is known for its speed and endurance.
Diet
Pelagic fish feed on a variety of organisms, from microscopic plankton, to other pelagic fish. The diet of a pelagic fish depends on its size and species.
Examples
Examples of pelagic fish include the mackerel, tuna, anchovy, sardine, shad, and salmon. Some species of shark, such as the great white shark and the mako shark, are also considered pelagic.
See Also
References
External links
- Medical encyclopedia article on Pelagic fish
- Wikipedia's article - Pelagic fish
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