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Fish are aquatic vertebrates that are typically cold-blooded; covered with scales, and equipped with two sets of paired fins and several unpaired fins. Fish are abundant in the sea and in freshwaters, with species being known from mountain streams (e.g., char and gudgeon) as well as in the deepest depths of the ocean (e.g., gulpers and anglerfish). They are of tremendous importance as food for people around the world, being either collected from the wild (see fishing) or being farmed in much the same way as cattle or chickens (see aquaculture). Fish are also exploited for recreation, through angling and fishkeeping, and fish are commonly exhibited in public aquaria. Through the ages, many cultures have featured fish in their legends and myths, from the "great fish" that swallowed Jonah the Prophet through to the ever-popular half-human, half-fish mermaid.
More about fish...

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Visualization of a Harvest Control Rule (HCR)
Fish and chips or fish 'n' chips, a popular take-away food, consists of deep-fried fish in batter or breadcrumbs with deep-fried potatoes, traditionally sold wrapped in newspaper.

Popular tradition associates the dish with the United Kingdom; and for decades fish and chips dominated the take-away food sector in the United Kingdom, Australia, and New Zealand. Fish and chips also has considerable popularity in parts of North America (New England, the Pacific Northwest and Canada generally), the Republic of Ireland and South Africa. establishments in Denmark and in some coastal towns in Norway serve fried fillets. In the Netherlands, the popular deep-fried, battered fried fillet dish called lekkerbek sometimes appears served with chips.

The modern fish-and-chip shop originated in the United Kingdom, although outlets selling fried food occurred commonly throughout Europe. According to one story, fried-potato shops spreading south from Scotland merged with fried-fish shops spreading from southern England.

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a pumpkinseed sunfish (Lepomis gibbosus)
The pumpkinseed (Lepomis gibbosus) is a freshwater fish of the sunfish family. It is native to northeastern North America but has been introduced elsewhere in North America as well as throughout much of Europe.

These fish reach a maximum overall length of about 40 cm (16 in). The fish present an oval silhouette and are very narrow laterally; it is their body shape, resembling the seed of a pumpkin, which got them their common name. Pumpkinseeds prefer shallow water with some weed cover. They are often found in ponds and small lakes, preferring water temperatures of 4–22 °C (39–72 °F). They are active during the day and rest near the bottoms during the night. These fish reproduce rapidly and are low on the food chain. The pumpkinseed, like other sunfishes, is very popular among anglers, especially the young.

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Hungry koi
Credit: User:Stan Shebs

Koi are ornamental domesticated varieties of the common carp Cyprinus carpio, originated from China and widely spread in Japan. They are very closely related to goldfish. The word "koi" comes from Japanese meaning "carp".

Did you know...

  • Liposarcus multiradiatus 01 ssj 20050321.jpg
    ...that the Loricariidae or the suckermouth catfish from Central and South America is the largest family of catfish, with almost 700 species and new species being described each year?
  • King of herrings.png
    ...that the king of herrings (Regalecus glesne), an oarfish of the family Regalecidae, is the world's longest bony fish with a length of 41 feet (12 m)?
  • ...that the yoyo loach (Botia almorhae) from India and Pakistan is named for their black and white patterns, which often can be seen to spell "yoyo" especially in younger specimens?
  • Sillago parvisquamis.jpg
    ...that studies of the inshore marine fish small-scale whiting (Sillago parvisquamis) suggest the female starts life smaller than the male, but grows faster and is larger than the male within two years?
  • ... that the cream-spotted cardinalfish is the sole member of the new genus Ozichthys?

The Fish Quiz

The Fish Quiz is a friendly quiz competition designed to test your general knowledge of fish. The current game is Fish Quiz Tournament X. You can read more and join the game here.

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"You know when they have a fishing show on TV? They catch the fish and then let it go. They don't want to eat the fish, they just want to make it late for something."




The Fish Portal: Mini Edition

The Mini Edition of the Fish Portal is available for you to use on your wikipedia user page or talk page. It uses minimum space but retains many crucial features of the portal. To use it, place {{Portal:Fish/Mini portal}} on the designated page. See here for an example of the mini portal on a user page.


Ichthyology : Fish anatomy, Fish development, Fish diseases, Fish locomotion, Fish migration, Ichthyology terms, Limnology, Marine biology, Meristics, Oceanography, Spawning
Taxa : Chondrichthyes, Osteichthyes, Actinopterygii, Sarcopterygii, Chondrostei, Neopterygii, Holostei, Teleostei, Osteoglossomorpha, Elopomorpha, Clupeomorpha, Ostariophysi, Cyclosquamata, Scopelomorpha, Lampridiomorpha, Polymyxiomorpha, Paracanthopterygii, Acanthopterygii
Fishery : Angling, Aquaculture, Fishing, Fish as food, Fish farming, Fish market, Fisheries management, Fishing industry, Overfishing
Food fish : Anchovy, Barb, Basa fish, Bass, Carp, Catfish, Cod, Eel, Flatfish, Goby, Gourami, Haddock, Herring, Mackerel, Oily fish, Perch, Pollock, Salmon, Snapper[disambiguation needed], Snakehead, Sturgeon, Tilapia, Trout, Tuna, Whitefish
Fishkeeping : Aeration, Aquarium, Fish food, Marine aquarium, Reef aquarium, Brackish water aquarium
Ornamental fish : Angelfish(freshwater), Angelfish(marine), Barb, Blenny, Boxfish, Butterflyfish, Cichlid, Chromis, Clownfish, Corydoras, Damsel, Danio, Discus, Goby, Goldfish, Gourami, Koi, Lionfish[disambiguation needed], Live-bearer, Loach, Mbuna, Rainbowfish, Pufferfish, Rasbora, Seahorse, Siamese fighting fish, Suckermouth catfish, Tang, Tetra, Triggerfish, Wrasse
Others : Amphibious fish, Electric fish, Deep sea fish, Ichthys, Mermaid, Prehistoric fish, Ray, Shark, Walking fish

Things you can do


Here are some tasks you can do, as organized by the WikiProject Fishes, if you are interested, please sign up on the project page.

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Fish on Wikinews     Fish on Wikiquote     Fish on Wikibooks     Fish on Wikisource     Fish on Wikicommons Fish on Wiktionary
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