Thousands Of Goldfish Take Over Colorado Lake

Discussion in 'General Chat' started by Usman, Apr 10, 2017.

  1. Usman

    Usman

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    why we should not release them in wild ! Thousands Of Goldfish Take Over Colorado Lake - YouTube
     
    Usman, Apr 10, 2017
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    adavisus

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    A scrummy snack for herons, foxes, mink, otter, kingfishers, snakes and umpteen native game fish when they find them
     
    adavisus, Apr 11, 2017
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  3. Usman

    Usman

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    in wild its different story , they are not that easy target , water is deeper and more places to hide and run in comparison to restricted small pond , also i read that the goldfishes are very adaptive and hardy that they can survive in worst waterquality and extreme cold warm climate , they can eat alot and any thing , that makes them invasive , there rate of growth and spawning is very high too even if they are eaten by predators stil they remain abundant . this makes other competitor fishes at risk
     
    Usman, Apr 11, 2017
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  4. Usman

    adavisus

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    at dawn, during low pressure systems they will be gasping at the surface and any cat, fox, heron, snake will have easy pickings

    Native game fish will grow amazingly big and fast living large on such a banquet

    During harsh winters the pond will ice over and snow blot all light out, all the organic stuff and algae, submerged aquatics doing a mass die off will kill every single one of them
     
    adavisus, Apr 11, 2017
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  5. Usman

    Usman

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    hmm all these things are more likely to happen in shallow small ponds , but not at macro level in lakes , rivers
     
    Last edited: Apr 11, 2017
    Usman, Apr 11, 2017
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  6. Usman

    callingcolleen1 mad hatter

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    Awe!! Could they just leave them in that one lake so the pretty goldfish have a santuary city!!
     
    callingcolleen1, Apr 13, 2017
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  7. Usman

    CometKeith

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    Introducing non native species in the wild is always a really bad idea. You should never release goldfish or pond plants into the wild. A few years ago there was a lake in Wisconsin that had most of the native fish get sick from a parasite they had no resistance to. Something totally inoculous to a goldfish can be deadly to a whole lake of fish.
     
    CometKeith, May 8, 2017
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  8. Usman

    TallGrassBigSky

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    Not necessarily. We have self-sustaining goldfish populations in several bodies of water in Minnesota, including very large ponds where you think they would be easy targets.

    Here's a picture I took this spring of a local urban pond that has had goldfish for years despite a healthy population of cormorants, herons, egrets, etc. (there were about three times as many fish than this; I just captured a section of them):
     

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    TallGrassBigSky, May 8, 2017
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  9. Usman

    Usman

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    Beautiful , are people allowed to catch them ?
     
    Usman, May 8, 2017
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  10. Usman

    Meyer Jordan Tadpole

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    Yup!!
     
    Meyer Jordan, May 8, 2017
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  11. Usman

    TallGrassBigSky

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    I'm guessing anyone can catch and release them as long as you have a fishing license. In Minnesota, you can only transport live fish (non-threatened species) home for aquarium display if you're 16 or under and bring your own transport water.

    I don't know how to interpret this MN DNR regulation that affects goldfish, among several other invasive species, "It is legal to possess, sell, buy, and transport regulated invasive species, but they may not be introduced into a free-living state, such as being released or planted in public waters."

    Sounds like they are saying it's OK to take them from the wild, but not to introduce them into the wild. That regulation affects ring-neck pheasants, which we allow the hunting of.

    The weird thing is that every spring, all of these goldfish in this pond surface and swim very slowly in one or two very large circles. I don't know if it happens on multiple days or just one day.

    I go to that pond all of the time, but I only ever see the goldfish once a year, and it's during this weird spring tradition of theirs.
     
    TallGrassBigSky, May 8, 2017
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  12. Usman

    budgenator

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    Sounds like that lake could use a few muskellunges or gar pike to keep the goldfish in check.
     
    budgenator, May 10, 2017
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  13. Usman

    C-Note

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    Ugh. This is what threatens koi keeping in the US. Irresponsible people fish-dumping into wild bodies of water. It can ruin the hobby for everyone!
     
    C-Note, May 12, 2017
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  14. Usman

    callingcolleen1 mad hatter

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    Now that they are out in the wild it can be very hard to control them. Lakes and ponds always have a water source that feeds the lake, or a heavy rain runnoff can bring them either up or down stream and that is how they spread.
    Not much can be done now, and dandilons are not supposed to be here either.
     
    callingcolleen1, May 12, 2017
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