Why are reef fish so much more colourful than pelagic fish?

Discussion in 'Marine Fish Discussions' started by Quinton, 11 Mar 2009.

  1. Quinton

    Quinton Smarty-pants Newbie

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    ... or fresh water fish, for that matter. Curious? Any theories/explanations?

    Q
     
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  3. lIghty

    lIghty

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    Some pelagic fish are really beautiful, just not seen often when alive, (colour fades when dead) look at a Sail fish when feeding, has these beautiful stripes, also Dorado, Marlin are all stunning when viewed under water.
     
  4. Warr7207

    Warr7207

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    Well the silver colour of the Pelagic fish makes sense makes them less visable to predator out in the open seas.

    The reef fish is truly strange. I remember seeing a program on the Great Barrier Reef, and they showed what colour spectrum fish see, and with the coral reefs as a backdrop the colourful fish totally disappeared, very interesting.
     
  5. dallasg

    dallasg Moderator MASA Contributor

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    i would think thats to do with the deep blue, the less colour the less u stand out to predators, on the reef colours help u with camoflage
     
  6. Quinton

    Quinton Thread Starter Smarty-pants Newbie

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    Sounds plausible. Although it's difficult to understand a yellow tang or flame angel being camouflaged against anything :lol:
     
  7. Quinton

    Quinton Thread Starter Smarty-pants Newbie

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    Sorry, missed your point there on first reading Warr. Makes sense that predatorial fish see different than us. Aren't we lucky :thumbup:
     
  8. Warr7207

    Warr7207

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    Totally, imagine if we saw like dogs in Black and white :p
     
  9. Shaun

    Shaun Retired Moderator

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  10. seank

    seank

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    Cause salt is actually good for you- it brings out the colours in us, that is why I am darker in skin colour, with a nice auburn tone, cause I like salt:thumbup: :whistling:
     
  11. trad

    trad Fish, thats the word!

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    Fish have a 4 cell in there eyes which lets them see utltra violet light, so they probably dony look as colourful to eachother.
     
  12. Falcon

    Falcon

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    yeah it was on sabc 3 sunday night....the flame angel blends in very easily away from predators vision due to sun reflections against reddish corals etc...and well yellow tangs use there bright yellow colouration in a big school to confuse any would be predators(these yellow tangs dont even need camoflage lol they are dam fast!)
     
    Last edited: 12 Mar 2009
  13. RiaanP

    RiaanP Moderator

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    Yes Sunday night SABC was the first progra I totally enjoyed in a long time.

    Part of the bright colours and combinations are there, so that the male / female can attact a mate while swimming above / outside the coral reef. The great barrier reef is BIG. Imagine you try to attract somebody's attention out there if you are only 10cm long...
     
  14. seank

    seank

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    If only it works in us humans life:( :yeahdude:
     
  15. ben lloyd

    ben lloyd

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    if i were only 10cm and colorful:whistling:
     
  16. FransSny

    FransSny

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    ben ive seen a lot of 'colourful" people in the local pub....doesnt seem to work, thinking boiut it the missus doesnt like it either :nono:
     
  17. Tony

    Tony

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    It's been recently found that the bright colours are actually camouflage as fish don't see as we do. Some fish like squirrel or soldier fish are red because they are deep water and the blue spectrum renders them invisible. SOme fish like mandarins are so vivdly coloured as a deterant toother fish as their slime is poisonous.
     
  18. dallasg

    dallasg Moderator MASA Contributor

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    pelagic fish are also plain/silverish so when they school the shimmer and flicker distracts the predators and they cant focus on one specific fish...

    its hypnotizing
     
  19. crispin

    crispin

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    sounds more like you have a colourful family tree;)
     
  20. Mike

    Mike Retired Moderator

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    Nail, head, hit - it's all about camoflage and survival, colourful fish (and other creatures) usually have a good reason for doing so, that Darwin bloke was on to something:)
     
  21. Tony

    Tony

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    Yellow looks grey under ultra violet light whcih would camouflage a fish nicely
     
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