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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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.

  • Why deep oceans gave life to the first big,...
    on December 12, 2018 at 6:43 pm

    Why did the first big, complex organisms spring to life in deep, dark oceans where food was scarce? A new study finds great depths provided a stable, life-sustaining refuge from wild temperature swings in the shallows. […]

  • Coral larvae use sound to find a home on the reef
    on December 12, 2018 at 5:18 pm

    A new study is starting to unravel that mystery. Researchers found that the soundscape of a reef -- the combined sounds of all animals living nearby -- might play a major role in steering corals towards healthy reef systems and away from damaged ones. […]

  • 'Eavesdropping' on groupers' mating calls key to...
    on December 12, 2018 at 2:33 pm

    Many fish produce sounds for courtship and mating, navigation, and defending their territories. Scientists analyze these sounds to study their behavior such as reproduction. Since grouper spawning is brief and it takes them a long time to reach sexual maturity, they are vulnerable to overfishing. 'Eavesdropping' on them is key to their survival. Researchers have developed a novel acoustic monitoring technique to classify grouper species by their sounds or 'grouper calls,' with accuracy of about […]

  • A future for red wolves may be found on Galveston...
    on December 11, 2018 at 5:24 pm

    Red wolves, once nearly extinct, again teeter on the abyss. New research finds red wolf ancestry in Texas -- providing opportunities for additional conservation action and difficult policy challenges. Researchers have identified red wolf ''ghost alleles'' in canid population on Galveston Island. […]

  • Invasive species and habitat loss our biggest...
    on December 10, 2018 at 1:59 pm

    Invasive species and habitat loss are the biggest threats to Australian biodiversity, according to new research. Australia was rich in unique biodiversity, but has had a poor track record since European settlement. […]


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.

  • Arctic permafrost might contain 'sleeping giant'...
    on December 12, 2018 at 1:27 pm

    As temperatures rise in the Arctic, permafrost, or frozen ground, is thawing. As it does, greenhouse gases trapped within it are being released into the atmosphere in the form of carbon dioxide and methane, leading to previously underestimated problems with ocean acidification and potential mercury poisoning. […]

  • Hypoxic dead zones found in urban streams, not...
    on December 11, 2018 at 7:56 pm

    Hypoxic dead zones, which occur when dissolved oxygen levels in water drop so low that fish and other aquatic animals living there suffocate, are well-documented problems in many coastal waters. […]

  • A future for red wolves may be found on Galveston...
    on December 11, 2018 at 3:10 pm

    Red wolves, once nearly extinct, again teeter on the abyss. New research finds red wolf ancestry on Galveston Island—providing opportunities for additional conservation action and difficult policy challenges. […]

  • A glimpse into future oceans
    on December 11, 2018 at 2:50 pm

    Something peculiar is happening in the azure waters off the rocky cliffs of Ischia, Italy. There, streams of gas-filled volcanic bubbles rising up to the surface are radically changing life around them by making seawater acidic. Stanford researchers studying species living near these gassy vents have learned what it takes to survive in acidic waters, providing a glimpse of what future oceans might look like as they grow more acidic. […]

  • The food poisoning find that could save lives
    on December 11, 2018 at 2:35 pm

    Researchers at The Australian National University (ANU) have made a discovery that has the potential to save lives when treating bacterial infections, especially serious food poisoning. […]