Fish

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Introduction1

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   See also   OneLook

Thesaurus

Roget’s II (Thesaurus.com), Merriam-Webster Thesaurus, Visuwords

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

Fish (Encyclopædia Britannica)

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Innovation

Science

Biology is the scientific study of life. Biologists study life at multiple levels of organization, from the molecular biology of a cell to the anatomy and physiology of plants and animals, and evolution of populations. Biologists also study and classify the various forms of life, from prokaryotic organisms such as archaea and bacteria to eukaryotic organisms such as protists, fungi, plants, and animals. — Wikipedia

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Preservation

Library

Subject: Fish (WorldCat)

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Participation

Education

MERLOT: Multimedia Educational Resource for Learning and Online Teaching
OER Commons: Open Educational Resources

Community

Occupation

Zoologists and Wildlife Biologists (CareerOneStop, U.S. Department of Labor, Employment and Training Administration)

Organization

American Institute of Biological Sciences

News

BioScience (American Institute of Biological Sciences)
Fish (EurekaAlert, American Association for the Advancement of Science)
Fish (Phys.org)
Fish (Science News)
Fish (NPR Archives)

Government

Document

Fish (USA.gov)

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More News …

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

  • Gene that guides earliest social behaviors could...
    on November 24, 2022 at 12:36 am

    A new animal study points to a gene that is important for the earliest development of basic social behaviors. The work also suggests that exposure to certain drugs and environmental risk factors during embryonic development can cause changes to this gene, leading to alterations in social behavior that are similar to those found in individuals who have autism.

  • 'SharkGuard' reduces bycatch of endangered...
    on November 21, 2022 at 4:44 pm

    For sharks living in the open ocean, longline fishing is the number-one threat, with an estimated 20 million pelagic sharks caught annually by fishers looking for tuna and other desired species. Now, a new studyshows that a new technology, known as 'SharkGuard,' could allow longline fishing to continue while reversing the dramatic decline of endangered sharks around the world.

  • Quick-closing valve allows fish to rapidly...
    on November 21, 2022 at 3:52 pm

    Researchers at the University of Gothenburg recently identified a water channel in a fish with what appears to be a unique quick-closing valve. Ultimately, this discovery could be significant in the development of drugs to treat cancer and Alzheimer's disease.

  • Ray-finned fish survived mass extinction event
    on November 17, 2022 at 6:55 pm

    Ray-finned fish, now the most diverse group of backboned animals, were not as hard hit by a mass extinction event 360 million years ago as scientists previously thought.

  • Toxins from harmful algae found in bull sharks of...
    on November 17, 2022 at 3:28 pm

    The Indian River Lagoon (IRL) is a bull shark nursery habitat crucial to survival and recruitment of Atlantic coast bull sharks. Analysis of 123 samples found the presence of one or more phycotoxin from harmful algal blooms in 82 percent of the bull sharks and their prey items. Findings highlight the potential threat of toxic algae to the IRL's ecosystem and surrounding human populations that may consume the same prey species. The highest concentrations of most toxins were detected in gut […]


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.

  • Scientists discover five new species of black...
    on November 26, 2022 at 2:30 pm

    Using a remote-controlled submarine, my colleagues and I discovered five new species of black corals living as deep as 2,500 feet (760 meters) below the surface in the Great Barrier Reef and Coral Sea off the coast of Australia.

  • The real Paleo diet: New archaeological evidence...
    on November 26, 2022 at 2:20 pm

    We humans can't stop playing with our food. Just think of all the different ways of serving potatoes—entire books have been written about potato recipes alone. The restaurant industry was born from our love of flavouring food in new and interesting ways.

  • Costa Rica crocodiles survive in 'most polluted'...
    on November 26, 2022 at 10:17 am

    In one of the most polluted rivers in Central America, a vulnerable crocodile species is thriving despite living in waters that have become a sewer for Costa Rica's capital, experts say.

  • What octopus and human brains have in common
    on November 25, 2022 at 7:00 pm

    Cephalopods like octopuses, squids and cuttlefish are highly intelligent animals with complex nervous systems. In Science Advances, a team led by Nikolaus Rajewsky of the Max Delbrück Center has now shown that their evolution is linked to a dramatic expansion of their microRNA repertoire.

  • Project aims to use concrete reefs to increase...
    on November 25, 2022 at 6:58 pm

    When cycling across the Bryggebroen bridge at Fisketorvet, you see three concrete sculptures emerging from the water surface in the inner harbor of Copenhagen. But it is actually only when you get under water that the work of art really begins to come to life. Here you can see that the sculptures are filled with cracks that will eventually become a habitat for seaweed and fish.

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Related

Here are links to pages about closely related subjects.

Knowledge Realm

Terrestrial   (Earth)

Sphere Land, Ice, Water (Ocean), Air, Life (Cell, Gene)
Ecosystem Forest, Grassland, Desert, Arctic, Aquatic

Tree of Life
Microorganism Virus
Prokaryote Archaea, Bacteria
Eukaryote Protist, Fungi, Algae, Protozoa (Tardigrade)
Plant Flower, Tree
Animal
Invertebrate
Cnidaria Coral, Jellyfish
Cephalopod Cuttlefish, Octopus
Crustacean Lobster, Shrimp
Arachnid Spider, Scorpion
Insect Ant, Bee, Beetle, Butterfly
Vertebrate
Fish Seahorse, Ray, Shark
Amphibian Frog, Salamander
Reptile Turtle, Tortoise, Dinosaur
Bird Penguin, Ostrich, Owl, Crow, Parrot
Mammal Platypus, Bat, Mouse, Rabbit, Goat, Giraffe, Camel, Horse, Elephant, Mammoth
Walrus, Seal, Polar Bear, Bear, Panda, Cat, Tiger, Lion, Dog, Wolf
Cetacean Whale, Dolphin
Primate Monkey, Chimpanzee, Human

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Notes

1.   The resources on this page are are organized by a classification scheme developed exclusively for Cosma.