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

Introduction

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 Link Central

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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.

  • SABER tech gives DNA and RNA visualization a boost
    on May 20, 2019 at 3:56 pm

    A collaborative research team has now developed 'Signal Amplification by Exchange Reaction' (SABER), a highly programmable and practical method that significantly enhances the sensitivity as well as customization and multiplexing capabilities of FISH analysis. […]

  • Nutrition: Substantial benefit from replacing...
    on May 16, 2019 at 3:45 pm

    Consumers will gain a health benefit from substituting part of the red and processed meat in their diet with fish, according to new calculations. Men over 50 and women of childbearing age in particular would benefit from such a change in diet. […]

  • Evolution in the gut
    on May 16, 2019 at 2:14 pm

    Evolution and dietary habits interact and determine the composition of bacteria in the digestive tract. Many microorganisms in the intestine seem to have developed in sync with their host animals over millions of years. […]

  • Ancient fish ponds in the Bolivian savanna...
    on May 15, 2019 at 6:40 pm

    A network of fish ponds supported a permanent human settlement in the seasonal drylands of Bolivia more than one thousand years ago, according to a new study. […]

  • Plastic pollution harms the bacteria that help...
    on May 14, 2019 at 12:17 pm

    Ten percent of the oxygen we breathe comes from just one kind of bacteria in the ocean. Now laboratory tests have shown that these bacteria are susceptible to plastic pollution, according to a new study. […]


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.

  • Penguins and their chicks' responses to local...
    on May 21, 2019 at 6:15 am

    How adult penguins fish and the body condition of their chicks are directly linked to local fish abundance, and could potentially inform fishery management, a new study has found. […]

  • SABER tech gives DNA and RNA visualization a boost
    on May 20, 2019 at 3:54 pm

    Researchers have been using "Fluorescence in situ hybridization" (FISH) analysis for decades to literally fish for specific DNA and RNA sequences in intact cells and tissues within their vast seas of nucleic acid molecules. Because of its ability to light specific sequences up under the microscope at the exact locations at which they reside, FISH has come to be a go-to method in the diagnosis of chromosomal abnormalities, investigation of the 3-D organization of genomes in cells' nuclei, […]

  • High-quality jadeite tool discovered in...
    on May 20, 2019 at 3:52 pm

    Anthropologists discovered a tool made out of high-quality translucent jadeite with an intact rosewood handle at a site where the ancient Maya processed salt in Belize. The discovery of these high-quality materials—jadeite and rosewood—used as utilitarian tools, demonstrates that salt workers played an important role in the Classic Maya marketplace economy more than 1,000 years ago. […]

  • Key acid-activated protein channel identified
    on May 20, 2019 at 3:21 pm

    Johns Hopkins researchers have discovered a long-sought protein, the proton-activated chloride channel (PAC), that is activated in acidic environments and could protect against the tissue-damaging effects of stroke, heart attack, cancer and inflammation. The researchers believe the discovery of this protein could provide a new drug target for potential therapies for stroke and other health issues. […]

  • Farmers have less leisure time than...
    on May 20, 2019 at 3:00 pm

    Hunter-gatherers in the Philippines who adopt farming work around ten hours a week longer than their forager neighbours, a new study suggests, complicating the idea that agriculture represents progress. The research also shows that a shift to agriculture impacts most on the lives of women. […]