Fish

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Caranx (Fishbase)
Caranx (Wikipedia)

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General

Portal

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




Jonathan Bird’s Blue World (Jonathan Bird Productions & Oceanic Research Group)
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)

Here Fishy Fishy (Biology4Kids)

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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.

  • Ecosystem responses to dam removal complex, but...
    on February 21, 2019 at 4:04 pm

    In the United States, the removal of dams now outpaces the construction of new ones -- with more than 1,400 dams decommissioned since the 1970s -- and a new study suggests that the ecosystem effects of dam removal can be predicted. […]

  • How to save a seabird
    on February 21, 2019 at 4:04 pm

    A new study outlines more than a decade of success in reducing seabird bycatch in Alaska's longline fisheries, and where there's still room for improvement. […]

  • Researchers discover a flipping crab feeding on...
    on February 20, 2019 at 6:35 pm

    Researchers have documented a group of tanner crabs vigorously feeding at a methane seep on the seafloor off British Columbia -- one of the first times a commercially harvested species has been seen using this energy source. […]

  • Scientists solve mystery of a fish called Mary's...
    on February 20, 2019 at 12:45 pm

    A female stickleback fish, nick-named 'Mary,' has produced offspring from eggs that appear to have been fertilized while they were still inside her, according to scientists. […]

  • Antibiotic resistances spread faster than...
    on February 19, 2019 at 10:01 pm

    By studying fish raised in aquaculture, researchers have shed new light on the mechanisms by which antibiotic resistance genes are transferred between bacteria. According to their study, those mechanisms are more varied than previously thought. […]


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.

  • Proximity to land determines how coral reef...
    on February 22, 2019 at 3:00 pm

    Severe weather and environmental disturbances, such as cyclones or thermal coral bleaching, affect specific areas of coral reefs differently, new research has shown. […]

  • Being a dad is hard when you're a plainfin...
    on February 22, 2019 at 2:40 pm

    Each spring, male plainfin midshipman fish (Porichthys notatus) —a kind of toadfish —emerge from the depths of the Pacific Ocean to breed on the beach. They overwhelm the beach at low tide, wedge themselves beneath rocks and excavate a nest in the rocks and sand. When their work is completed, the bachelors settle down and hum to attract mates. […]

  • How bird feather patterns form
    on February 21, 2019 at 7:00 pm

    Feathers evolved in dinosaurs and are a key characteristic of birds today. They are arranged in a precise hexagonal pattern in a bird's skin, but it has been unclear how this happens. According to a new study published February 21 in the open-access journal PLOS Biology, led by Dr. William Ho and Denis Headon of the University of Edinburgh, and collaborative colleagues, the patterning of bird feathers relies on signaling through ectodysplasin (EDA) and its receptor EDAR—the same signaling […]

  • Too hot for comfort: the physiological dangers of...
    on February 21, 2019 at 6:25 pm

    A new review of more than 140 studies explores the physiological dangers that climate change will likely have on animal life, including humans. The review is published in the journal Physiology. […]

  • Indonesians clean up the beach one sandal at a...
    on February 21, 2019 at 6:03 pm

    Hundreds of people sifted through a vast wasteland of rubbish strewn across a beach in Indonesia on Thursday, underscoring the Southeast Asian archipelago's mammoth marine waste problem […]