Fish

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Caranx (Fishbase)
Caranx (Wikipedia)

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General

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FishBase (R. Froese & D. Pauly)
Fish Portal (Wikipeda)

Dictionary

fish : any of numerous cold-blooded strictly aquatic craniate vertebrates that include the bony fishes and usually the cartilaginous and jawless fishes and that have typically an elongated somewhat spindle-shaped body terminating in a broad caudal (see caudal 2) fin, limbs in the form of fins when present at all, and a 2-chambered heart by which blood is sent through thoracic gills to be oxygenated — Webster

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Encyclopedia

Fish are the gill-bearing aquatic craniate animals that lack limbs with digits. They form a sister group to the tunicates, together forming the olfactores. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Tetrapods emerged within lobe-finned fishes, so cladistically they are fish as well. However, traditionally fish are rendered paraphyletic by excluding the tetrapods (i.e., the amphibians, reptiles, birds and mammals which all descended from within the same ancestry). Because in this manner the term “fish” is defined negatively as a paraphyletic group, it is not considered a formal taxonomic grouping in systematic biology. The traditional term pisces (also ichthyes) is considered a typological, but not a phylogenetic classification. — Wikipedia

Encyclopædia Britannica

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Fish FAQs (Northeast Fisheries Science Center, NOAA Fisheries)

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Science

Ichthyology, also known as fish science, is the branch of zoology devoted to the study of fish. This includes bony fish (Osteichthyes), cartilaginous fish (Chondrichthyes), and jawless fish (Agnatha). While a large number of species have been discovered, approximately 250 new species are officially described by science each year. According to FishBase, 33,400 species of fish had been described by October 2016. — Wikipedia

Encyclopædia Britannica





Flathead catfish (Fishbase)
Flathead catfish (Wikipedia)



What This Walking Fish Can Teach Us About Evolution (National Geographic)

Preservation




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National Aquarium (Baltimore)

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Seafood Watch (Monterey Bay Aquarium)


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Fish News -- ScienceDaily All about fish. Current research in marine biology including fish habitats, aquaculture, speciation, deep sea fish and more.

  • New study reveals how reptiles divided up the...
    on September 30, 2020 at 12:52 pm

    While dinosaurs ruled the land in the Mesozoic, the oceans were filled by predators such as crocodiles and giant lizards, but also entirely extinct groups such as ichthyosaurs and plesiosaurs. Now for the first time, researchers have modeled the changing ecologies of these great sea dragons.

  • Predator-prey interaction study reveals more food...
    on September 30, 2020 at 12:51 pm

    Decades of data allow researchers to look at predator-prey interactions in a different way: among multiple species throughout the water column. They have developed an unusually rich picture of who is eating whom off the Northeastern United States.

  • Marine biodiversity reshuffles under warmer and...
    on September 29, 2020 at 4:35 pm

    Climate warming will alter marine community compositions as species are expected to shift poleward, significantly impacting the Arctic marine ecosystem.

  • Study traces the evolution of gill covers
    on September 28, 2020 at 11:12 pm

    Scientists have identified a key modification to the genome that led to the evolution of gill covers more than 430 million years ago.

  • Ancient Adélie penguin colony revealed by...
    on September 28, 2020 at 7:57 pm

    Researchers encountered a puzzle at Cape Irizar, a rocky cape located just south of the Drygalski Ice Tongue on the Scott Coast, Ross Sea. He found both ancient and what appeared to be fresh remains of Adelie penguins, mostly of chicks, which frequently die and accumulate at these colonies. However, the 'fresh' remains were puzzling, he says, because there are no records of an active penguin colony at this site.


Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.

  • Arnhem Land Maliwawa rock art opens window to past
    on September 30, 2020 at 7:12 pm

    zStunning Arnhem Land rock art images including three rare depictions of bilbies and a dugong have been described by researchers in a new paper in Australian Archaeology this week.

  • There's a giant 'Green Banana' off Florida's...
    on September 30, 2020 at 7:10 pm

    If you haven't heard of the "Green Banana blue hole" you might imagine a tropical cocktail you can order in Key West, or a dessert you ordered after a night on Bourbon Street.

  • 6 dolphins found dead in 'historic' stranding in...
    on September 30, 2020 at 7:04 pm

    Six dolphins were found dead in an Alabama marsh last week in what experts call an "historic mass stranding."

  • Using mobile technology to predict invasive...
    on September 30, 2020 at 3:01 pm

    A cooler full of fish might not be the only thing anglers bring back from a trip to the lake. Unknowingly, they may also be transporting small aquatic "hitchhikers" that attach themselves to boats, motors ― and even fishing gear ― when moving between bodies of water.

  • How the Humboldt squid's genetic past and present...
    on September 30, 2020 at 2:51 pm

    A group of marine biologists is pushing for more international collaboration to manage the Humboldt squid population after their study to identify its genetic stocks revealed its vulnerability to overfishing by fleets trying to feed the world's hunger for squids.