Chordates
Fossil range: Latest Ediacaran - Recent
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Subkingdom: Eumetazoa
(unranked): Bilateria
Superphylum: Deuterostomia
Phylum: Chordata, Bateson, 1885
Fishkeeping is a popular hobby concerned with keeping fish in the home aquarium or garden pond.
Fish as a food describes the edible parts of water-dwelling, cold-blooded vertebrates with gills, as well as certain other water-dwelling animals such as mollusks, crustaceans, and shellfish.
There are over 27,000 species of fish, making them the most diverse group of vertebrates. However, only a small number of the total species are commonly eaten. Fish are consumed as food all over the world, but fresh fish are moreso in areas close to seas, rivers, and lakes.
Recreational fishing and the closely related (nearly synonymous) sport fishing describe fishing for pleasure or competition. Recreational fishing has conventions, rules, licensing restrictions and laws that limit the way in which fish may be caught, The International Game Fishing Association (IGFA) makes and oversees these obligations. Typically, these prohibit the use of nets and the catching of fish with hooks not in the mouth.
A fish is a water-dwelling vertebrate with gills that doesn't change form, as amphibians do, during its life. There are over 29,000 species of fish, making them the most diverse group of vertebrates.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts.
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