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)


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.

  • Global warming hits sea creatures hardest
    on April 24, 2019 at 7:36 pm

    Global warming has caused twice as many ocean-dwelling species as land-dwelling species to disappear from their habitats, a unique study found. The greater vulnerability of sea creatures may significantly impact human communities that rely on fish and shellfish for food and economic activity, according to the study. […]

  • Can we solve the riddle of the coral reef halos?
    on April 24, 2019 at 12:34 pm

    Patches of coral reef are often surrounded by very large 'halos' of bare sand that are hundreds to thousands of square meters. New research sheds light on these enigmatic features that are visible from space. […]

  • How fish brain cells react to Alzheimer's disease
    on April 23, 2019 at 5:37 pm

    Researchers have studied the regenerative capacity of zebrafish brain in single cell resolution with the aim of developing novel strategies against Alzheimer's. […]

  • Devil rays may have unknown birthing zone
    on April 23, 2019 at 5:34 pm

    The discovery of dozens of pregnant giant devil rays tangled in fishing nets in a village along Mexico's Gulf of California could mean the endangered species has a previously unknown birthing zone in nearby waters, a study suggests. If more research confirms the possibility, the zone should be protected and placed off limits to fishing during times each spring when pregnant rays migrate there. […]

  • Group decisions: When more information isn't...
    on April 22, 2019 at 12:22 pm

    Modular -- or cliquey -- group structure isolates the flow of communication between individuals, which might seem counterproductive to survival. But for some animal groups, more information isn't necessarily better, according to new research. […]


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.

  • Freshwater fish species richness has increased in...
    on April 24, 2019 at 8:53 pm

    The taxonomic and trophic composition of freshwater fishes in the Ohio River Basin has changed significantly in recent decades, possibly due to environmental modifications related to land use and hydrology, according to a study published April 24 in the open-access journal PLOS ONE by Mark Pyron of Ball State University, and colleagues. […]

  • Global warming hits sea creatures hardest
    on April 24, 2019 at 5:00 pm

    Global warming has caused twice as many ocean-dwelling species as land-dwelling species to disappear from their habitats, a unique Rutgers-led study found. […]

  • Researchers create the first maps of two...
    on April 24, 2019 at 5:00 pm

    An international team of researchers used an X-ray laser at the Department of Energy's SLAC National Accelerator Laboratory to create the first detailed maps of two melatonin receptors that tell our bodies when to go to sleep or wake up and guide other biological processes. A better understanding of how they work could enable researchers to design better drugs to combat sleep disorders, cancer and Type 2 diabetes. Their findings were published in two papers today in Nature. […]

  • Migrating bats use the setting sun
    on April 24, 2019 at 4:59 pm

    Bats weighing no more than 6 grams, migrating over a thousand miles from the Baltic to Britain, could be the key to revealing how migrating mammals navigate. […]

  • What happens now we've found the site of the lost...
    on April 24, 2019 at 12:50 pm

    Finding shipwrecks isn't easy – it's a combination of survivor reports, excellent archival research, a highly skilled team, top equipment and some good old-fashioned luck. […]