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  2. Down by the Water (PJ Harvey song) - Wikipedia

    en.wikipedia.org/wiki/Down_by_the_Water_(PJ...

    It is the seventh track and the lead single from her third studio album, To Bring You My Love, released in February 1995 on Island Records. The song was written by Harvey, and self-produced with Flood and John Parish. The song diverged significantly from Harvey's former indie rock and punk blues influence, opting to use electronic instruments ...

  3. Salmon run - Wikipedia

    en.wikipedia.org/wiki/Salmon_run

    A salmon run is an annual fish migration event where many salmonid species, which are typically hatched in fresh water and live most of the adult life downstream in the ocean, swim back against the stream to the upper reaches of rivers to spawn on the gravel beds of small creeks. After spawning, all species of Pacific salmon and most Atlantic ...

  4. Shoaling and schooling - Wikipedia

    en.wikipedia.org/wiki/Shoaling_and_schooling

    Shoaling and schooling. These powder blue tangs are shoaling. They are swimming somewhat independently, but in such a way that they stay connected, forming a social group. These bluestripe snapper are schooling. They are all swimming in the same direction in a coordinated way. In biology, any group of fish that stay together for social reasons ...

  5. Fish ladder - Wikipedia

    en.wikipedia.org/wiki/Fish_ladder

    Pool-and-weir fish ladder at Bonneville Dam on the Columbia River Drone video of a fish way in Estonia, on the river Jägala FERC Fish Ladder Safety Sign. A fish ladder, also known as a fishway, fish pass, fish steps, or fish cannon, is a structure on or around artificial and natural barriers (such as dams, locks and waterfalls) to facilitate diadromous fishes' natural migration as well as ...

  6. Aquatic locomotion - Wikipedia

    en.wikipedia.org/wiki/Aquatic_locomotion

    Aquatic locomotion. A great cormorant swimming. Aquatic locomotion or swimming is biologically propelled motion through a liquid medium. The simplest propulsive systems are composed of cilia and flagella. Swimming has evolved a number of times in a range of organisms including arthropods, fish, molluscs, amphibians, reptiles, birds, and mammals.

  7. Freshwater fish - Wikipedia

    en.wikipedia.org/wiki/Freshwater_fish

    Freshwater fish are fish species that spend some or all of their lives in bodies of fresh water such as rivers, lakes and inland wetlands, where the salinity is less than 1.05%. These environments differ from marine habitats in many ways, especially the difference in levels of osmolarity. To survive in fresh water, fish need a range of ...

  8. Swim bladder - Wikipedia

    en.wikipedia.org/wiki/Swim_bladder

    The swim bladder, gas bladder, fish maw, or air bladder is an internal gas-filled organ that contributes to the ability of many bony fish (but not cartilaginous fish [1]) to control their buoyancy, and thus to stay at their current water depth without having to expend energy in swimming. [2] Also, the dorsal position of the swim bladder means ...

  9. Chinook salmon - Wikipedia

    en.wikipedia.org/wiki/Chinook_salmon

    The Chinook salmon / ʃɪˈnʊk / (Oncorhynchus tshawytscha) is the largest and most valuable species of Pacific salmon. [2] Its common name is derived from the Chinookan peoples. Other vernacular names for the species include king salmon, Quinnat salmon, Tsumen, spring salmon, chrome hog, Blackmouth, and Tyee salmon.