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Fish and fluids

  • 23-08-2009 11:44pm
    #1
    wolfric
    Registered Users, Registered Users 2 Posts: 1,190 ✭✭✭


    Do fish or sea creatures drink? How do they retain the fluid in their body in the sea? Most of the sea water is highly salty. Does this pose a problem? Do they absorb it into the skin?

    Just a random question that popped into my head out of curiosity?


Comments

  • #2
    brendansmith
    Registered Users, Registered Users 2 Posts: 4,526 ✭✭✭brendansmith


    wolfric wrote: »
    Most of the sea water is highly salty. Does this pose a problem?


    No. They are fish.


  • #3
    wolfric
    Registered Users, Registered Users 2 Posts: 1,190 ✭✭✭wolfric


    No. They are fish.
    .........................
    i like your....thoughtful...explanation... clearly you understand the topic very deeply.

    i did a little research and answered my own question.
    Web research seems to indicate that most fish do drink plenty of water, some continuously. Some fish absorb water through their skin and/or gills, and may excrete water that way, too. Apparently, fish need to maintain a fairly high concentration of salt, so how a fish deals with this need depends on whether it is a saltwater or freshwater fish.


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