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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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, MD)
National Aquarium (Baltimore)

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Seafood Watch (Monterey Bay Aquarium)


Will the ocean ever run out of fish? (Ayana Elizabeth Johnson and Jennifer Jacquet, TED-Ed)

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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.

  • Ocean acidification puts deep-sea coral reefs at...
    on September 17, 2020 at 2:53 pm

    Deep-sea coral reefs face challenges as changes to ocean chemistry triggered by climate change may cause their foundations to become brittle, a study suggests.

  • Epidemics and pandemics can exacerbate...
    on September 16, 2020 at 5:11 pm

    Instincts developed to protect us from illnesses can generalize into avoidance of healthy individuals who simply look, speak or live differently.

  • Scientists identify gene family key to unlocking...
    on September 16, 2020 at 5:10 pm

    New research finds that the traits that make vertebrates distinct from invertebrates were made possible by the emergence of a new set of genes 500 million years ago, documenting an important episode in evolution where new genes played a significant role in the evolution of novel traits in vertebrates.

  • Marine animals live where ocean is most...
    on September 16, 2020 at 3:35 pm

    New research shows that a wide variety of marine animals -- from vertebrates to crustaceans to mollusks -- already inhabit the maximum range of breathable ocean that their physiology will allow. The findings provide a warning about climate change: Since warmer waters will harbor less oxygen, some stretches of ocean that are breathable today for a given species may not be in the future.

  • Can pumping up cold water from deep within the...
    on September 16, 2020 at 3:34 pm

    Rising ocean temperatures cause marine heat waves, which place stress on living coral animals, as well as the photosynthetic algae on which they depend for energy. A new study is showing potential for the use of artificial upwelling (AU)-- or the application of cooler, deep water -- as a way to mitigate the thermal stress on corals.


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.

  • Massive damage of rare plants probed at Nevada...
    on September 18, 2020 at 8:10 pm

    State and federal authorities are investigating the mysterious loss of a significant swath of a rare desert wildflower that's being considered for federal protection at a contentious mine site in Nevada with some of the largest untapped lithium deposits in the world.

  • Chimpanzees in volatile habitats evolved to...
    on September 18, 2020 at 2:00 pm

    One of the reasons humans are so resilient is our ability to mold our behavior to ever changing situations. It wasn't so long ago that many of us hugged when we met. In the middle of a pandemic, in which close contact between people can help spread a deadly virus, we now stand (often awkwardly) two meters apart. This is just one example of our ability to adapt to changing circumstances that can otherwise be harmful. This capacity to cope and respond flexibly to unpredictable changes in our […]

  • Potential for fisheries co-management shaped by...
    on September 18, 2020 at 1:40 pm

    Integrating local norms and fishermen's knowledge into fisheries regulations helps increase trust in fisheries management institutions and can make it easier for co-management to work.

  • Monarch butterflies' spectacular migration is at...
    on September 18, 2020 at 1:17 pm

    One of nature's epic events is underway: Monarch butterflies' fall migration. Departing from all across the United States and Canada, the butterflies travel up to 2,500 miles to cluster at the same locations in Mexico or along the Pacific Coast where their great-grandparents spent the previous winter.

  • Turtle scavenging critical to freshwater...
    on September 17, 2020 at 3:00 pm

    Freshwater turtles may have a role in regulating water quality in river systems by scavenging fish carcasses, suggests a study of Emydura macquarii, a vulnerable freshwater turtle species found in Australia. The findings are published in Scientific Reports.