How do fish know

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

  1. rakabos

    rakabos

    Joined:
    12 Jul 2010
    Posts:
    5,006
    Likes Received:
    91
    Location:
    Wilgeheuwel, JHB
    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? :)
     
  2. AdS Guest




    to hide all adverts.
  3. ziyaadb

    ziyaadb

    Joined:
    18 Jul 2007
    Posts:
    5,566
    Likes Received:
    48
    Location:
    JHB-Lenzz
    fantastic question and something that has intrigued me as well
     
  4. Pads

    Pads

    Joined:
    18 Aug 2008
    Posts:
    689
    Likes Received:
    4
    Location:
    Joburg, Bryanston
    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

    Joined:
    27 Jan 2010
    Posts:
    1,371
    Likes Received:
    5
    Location:
    East London
  6. Mekaeel

    Mekaeel Moderator MASA Contributor

    Joined:
    8 May 2007
    Posts:
    24,229
    Likes Received:
    127
    Location:
    Point Waterfront Durban
    OMG :lol:
    This is the question of the reefkeeping century :lol:
     
  7. rakabos

    rakabos Thread Starter

    Joined:
    12 Jul 2010
    Posts:
    5,006
    Likes Received:
    91
    Location:
    Wilgeheuwel, JHB
  8. Boegie

    Boegie

    Joined:
    27 Jan 2010
    Posts:
    1,371
    Likes Received:
    5
    Location:
    East London
    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

    Joined:
    27 Jan 2010
    Posts:
    1,371
    Likes Received:
    5
    Location:
    East London
    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

    Joined:
    24 Jan 2010
    Posts:
    1,717
    Likes Received:
    42
    Location:
    Fregate Island, Seychelles
    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 MASA Contributor

    Joined:
    14 Dec 2008
    Posts:
    16,771
    Likes Received:
    582
    Location:
    Sandton
    interesting read

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

    seank

    Joined:
    24 May 2007
    Posts:
    11,984
    Likes Received:
    119
    Location:
    North of Durban and South of Mozambique

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

    vatso

    Joined:
    3 Dec 2007
    Posts:
    1,733
    Likes Received:
    9
    Location:
    JHB
    LOL

    This thread brilliant :)
     
  14. RiaanP

    RiaanP Moderator

    Joined:
    11 Aug 2008
    Posts:
    23,157
    Likes Received:
    1,230
    Location:
    Centurion
    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. rakabos

    rakabos Thread Starter

    Joined:
    12 Jul 2010
    Posts:
    5,006
    Likes Received:
    91
    Location:
    Wilgeheuwel, JHB
    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

    Joined:
    13 Sep 2007
    Posts:
    2,087
    Likes Received:
    32
    Location:
    East London
    :lol:
     
  17. martinhal

    martinhal

    Joined:
    9 Feb 2008
    Posts:
    353
    Likes Received:
    9
    Location:
    Northriding
  18. colbar

    colbar

    Joined:
    6 Jan 2009
    Posts:
    382
    Likes Received:
    2
    Location:
    Johannesburg South Africa
    Interesting read. Thank you for sharing.
     
Recent Posts

Loading...
Similar Threads - fish Forum Date
Orange spotted jaw fish not well Marine Fish Discussions 4 minutes ago
Urgent help needed Fish need a new home... No Price. Urgent Help Needed Today at 13:36
Shipments and fish Marine Aquatics Today at 05:26
How to nori train a fish Marine Fish Discussions 28 Nov 2016
50 % Off All Marine Fish Pet Lovers Emporium 27 Nov 2016
Fish ID ID Needed 23 Nov 2016
Fish Civil Rights Advanced Topics 21 Nov 2016