How do fish know

Discussion in 'Marine Fish Discussions' started by rakabos, 31 Aug 2010.

  1. rakabos

    rakabos

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    We always read about how fish dont like to be kept with other similar looking fish as they tend to pick fights with them.

    Now my question is: how the heck does a fish know what it looks like?? Do they have vanity mirrors they use when nobody is looking? :)
     
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  3. ziyaadb

    ziyaadb

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    fantastic question and something that has intrigued me as well
     
  4. Pads

    Pads

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    Classic :lol: I presume its got to do with natural instinct, another possibility could be the ability of the fish to "smell" food, mates and threats?
     
  5. Boegie

    Boegie

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  6. Mekaeel

    Mekaeel Moderator

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    OMG :lol:
    This is the question of the reefkeeping century :lol:
     
  7. OP
    rakabos

    rakabos

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  8. Boegie

    Boegie

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    I think it has something to do with smell. Google again:

    "It is believed the fish could be using mainly smell to find familiar fish - so that they can stick around with those who come from the same background"
     
  9. Boegie

    Boegie

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    But sometimes a fish needs to recognize one particular other fish, much as people need to recognize each other. The anemone fish has only one mate, which it recognizes by its head markings. This was discovered by scientists who took a fish out of its tank and dressed it in a kind of green "overcoat." When the fish was put back in its tank, its mate was no longer able to recognize it and attacked its partner immediately.
     
  10. Dane

    Dane

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    Hahaha, okes this is a funny one!

    Fish identify each other using myriad clues including scent, "taste" etc. But visually they are programmed to identify their own species. The same way when human males see a hot chick - then they're attracted to her. Its not because we've looked at ourselves in a mirror and gone. Hmm, she must be the same species as me. Evolutionary selection has programmed us to respond differently to different things - and some of the strongest interaction are interspecies.

    Also - what makes you say a fish can't see itself. I look down and I can see the shape and colour of my body, my hands and arms. Some fish are pretty flexible and can probably make out their general colouration etc - but I dont think thats the issue here.
     
  11. dallasg

    dallasg Moderator

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    interesting read

    also being sentient or self aware is what also determines the intelligence of animals
     
  12. seank

    seank

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    To me every fish smells the same :biggrin:
     
  13. vatso

    vatso

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    LOL

    This thread brilliant :)
     
  14. RiaanP

    RiaanP Moderator

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    So the fish can learn what is going on outside the tank...
    So now you have to be carefull to what you do in front of the tank....:)
     
    Last edited: 31 Aug 2010
  15. OP
    rakabos

    rakabos

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    hmmm coming to think of it... I do have a big mirror in my lounge on the opposing wall. This must be how they know! :thumbup:
     
    Last edited: 31 Aug 2010
  16. Broder

    Broder Mudshark

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    :lol:
     
  17. martinhal

    martinhal

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  18. colbar

    colbar

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    Interesting read. Thank you for sharing.
     

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