Jump to content

Portal:Fish

From Wikipedia, the free encyclopedia

The Fish Portal

Ocellaris clownfish (Amphiprion ocellaris) in Papua New Guinea

A fish is an aquatic, anamniotic, gill-bearing vertebrate animal with swimming fins and a hard skull, but lacking limbs with digits. Fish can be grouped into the more basal jawless fish and the more common jawed fish, the latter including all living cartilaginous and bony fish, as well as the extinct placoderms and acanthodians. In a break from the long tradition of grouping all fish into a single class (''Pisces''), modern phylogenetics views fish as a paraphyletic group.

The earliest fish appeared during the Cambrian as small filter feeders; they continued to evolve through the Paleozoic, diversifying into many forms. The earliest fish with dedicated respiratory gills and paired fins, the ostracoderms, had heavy bony plates that served as protective exoskeletons against invertebrate predators. The first fish with jaws, the placoderms, appeared in the Silurian and greatly diversified during the Devonian, the "Age of Fishes".

Bony fish, distinguished by the presence of swim bladders and later ossified endoskeletons, emerged as the dominant group of fish after the end-Devonian extinction wiped out the apex predators, the placoderms. Bony fish are further divided into lobe-finned and ray-finned fish. About 96% of all living fish species today are teleosts- a crown group of ray-finned fish that can protrude their jaws. The tetrapods, a mostly terrestrial clade of vertebrates that have dominated the top trophic levels in both aquatic and terrestrial ecosystems since the Late Paleozoic, evolved from lobe-finned fish during the Carboniferous, developing air-breathing lungs homologous to swim bladders. Despite the cladistic lineage, tetrapods are usually not considered fish. (Full article...)

Selected fish – show another

Takifugu in a tank

Fugu (河豚; ; フグ) in Japanese, bogeo (복어; 鰒魚) or bok () in Korean, and hétún (河豚; 河魨) in Standard Modern Chinese refers to pufferfish, normally of the genus Takifugu, Lagocephalus, or Sphoeroides, or a porcupinefish of the genus Diodon, or a dish prepared from these fish.

Fugu possesses a potentially lethal poison known as tetrodotoxin, therefore necessitating meticulous preparation to prevent the fish from being contaminated. Restaurant preparation of fugu is strictly controlled by law in Japan, Korea and several other countries, and only chefs who have qualified after three or more years of rigorous training are allowed to prepare the fish. Domestic preparation occasionally leads to accidental death. (Full article...)

Did you know (auto-generated) - load new batch

  • ... that marmalade, mashed potato and fish knives were all used in the book Class to identify different British social classes?
  • ... that Native American Ted Towendolly pioneered a fly-fishing technique that was independently reinvented in Europe fifty years later?
  • ... that in two days, Nick Sciba went from selling fish to playing in the National Football League?
  • ... that Pituamkek National Park Reserve, Canada's newest national park, protects a chain of barrier islands that have been used for fishing and hunting by the Mi'kmaq for 4,000 years?
  • ... that male fish in the subclass Holocephali often have special organs on top of their head that are used to grasp females while mating?
  • ... that locally endangered Eurasian otters along the river Meghri have become a nuisance to local fish farmers?

General images - load new batch

The following are images from various fish-related articles on Wikipedia.

Selected images

Selected quote

"We eat fish and fish eat us."

List articles

Topics

Categories

Category puzzle
Category puzzle
Select [►] to view subcategories

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.

  • Copyedit:
  • Expand: Barb (fish species), fishing industry, Greater Argentine, Gold Spot Pleco, Fish anatomy, Black goby, Poecilia caucana, Arrowtooth flounder, Paiute cutthroat trout, Serrasalmus, Pygocentrus, Greater pipefish, Lesser pipefish
  • Develop featured article: Ocean sunfish is in danger of losing its featured article status - improvement urgently needed.
  • Peer review: Spring cavefish, Convict cichlid, Hoplosternum littorale, Shortnose sturgeon
  • Article requests: Missing topics about Fish, Devonian Fish Project article requests, Jörg Freyhof
  • Picture request: Phreatobius cisternarum, Scoloplax, Nematogenys inermis, Chiapas catfish (Upload any non-copyrighted fish images to the appropriate section of Wikimedia Commons)
  • Identify images: Identify and move fish-related images to the appropriate sections of Wikimedia Commons, especially images of unidentified fish
  • Collaboration: Pacific jack mackerel (edit | talk | history | protect | delete | links | watch | logs | views)
  • Assessment: Assess the quality and importance of fish articles
  • Other: Expand Fish anatomy and Fish locomotion, Create articles for the two missing families in the Perciformes (Bembropidae and Zanclorhynchidae). Merge GLAM/ARKive donated texts into articles about endangered species.
  • If you have any question, comment or suggestion, please discussion here.

    view edit discusshistorywatch

    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.

    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.

    Associated Wikimedia

    The following Wikimedia Foundation sister projects provide more on this subject:

    More portals

    Purge server cache