Alien fish threatens KZN wildlife - report

Discussion in 'General Discussions' started by Henk Hugo, Feb 14, 2009.

  1. Henk Hugo

    Henk Hugo

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    Not sure if they are actually breeding in KZN....

    http://www.iol.co.za/index.php?set_id=1&click_id=13&art_id=nw20081208121740297C344783

     
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  3. Dolphin

    Dolphin

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    irresponsible behaviour like this just creates havoc!

    but its really interesting, what are the chances that a male and female were released at the same place by the same aquarist and they paired up and started breeding. I think slim...

    maybe somebody had a breeding pair and didnt realise he was siphoning out the babies during a water change - whats the chances...

    whats the chances of several different people releasing these fish in the same or nearby water systems and they managed to get together and started breeding... hmmm
     
  4. Dolphin

    Dolphin

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    what damage would a pleco, Pterygoplichthys sp., cause to local fauna and flora? besides diversifying it...
     
  5. OP
    Henk Hugo

    Henk Hugo

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    eat the other fish eggs?
     
  6. Dolphin

    Dolphin

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    hmmmm... I dono :push:
     
  7. Philfarm

    Philfarm

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    I dont know about plecos but I caught some nice Bass in Natal these holidays, you would think thats a more serious problem..
     
  8. city bowl

    city bowl

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    When breeding they may well burrow into riverbanks and collapse them, causing erosion and silt issues.
     
  9. Dolphin

    Dolphin

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    possible... the effects of this would depend on how many pairs are in there...

    i wonder if they started addressing the problem and how :push:
     
  10. city bowl

    city bowl

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    See this site: http://www.plecoinvasion.org/links.html
    I don't think this is that well researched as to the exact spieces that are invasive,
    "plecos" being such a wide essentially unscientific term, referring to hundreds of spieces found in such varied habitats.
    However the hardier types with a greater potential to be invasive are perhaps likely to be those commonly found in the trade.
     
    Last edited: Feb 15, 2009
  11. Dolphin

    Dolphin

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