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    Asian Carp in Iowa Great Lakes

    SPIRIT LAKE, Iowa – A commercial fishing company caught 55 silver carp and 82 big head carp on March 28 and 29, fishing in the same general area of East Okoboji Lake where two big head carp were netted by the Iowa DNR last August during a population survey.
    On April 3, one silver carp was caught by the same commercial angler in Spirit Lake. A second netting effort on April 4 in the same East Okoboji Lake location resulted in only two bighead carp and two silver carp.
    Mike Hawkins, fisheries biologist with the Iowa Department of Natural Resources, said the invasive fish had a small window last summer in which to enter the Iowa Great Lakes. Flood events in June and July allowed the fish to navigate the Little Sioux River past the Linn Grove Dam, landing at the doorstep of the Iowa Great Lakes.

    Once below the Iowa Great Lakes, heavy rain events in July caused flooding conditions on the lakes that allowed these fish to enter Lower Gar Lake, which is the final lake in the chain of six glacial lakes in Dickinson County.
    “While it confirms the presence of both species, this commercial seine haul does not tell us how many Asian carp are in the lakes. Nor does it get us any closer to knowing at what level these fish will be a problem.,” Hawkins said.
    The DNR has been working with their partners to prevent additional invasive carp from entering the lakes.
    Fundraising to pay for an electronic fish barrier at the Lower Gar outlet has passed $600,000. Hawkins said information on different barriers is due April 9 from prospective companies that will explain the potential systems and more accurately set out the final cost. Preliminary estimates put the barrier in the $700,000 range.
    “I can’t say enough about the effort our local partners have invested in this project,” Hawkins said. “We are working to get the barrier in place as quickly as possible but there is a process to this and we need to do it right. These are complicated and sophisticated devices and this will be a major construction project.”
    Since the flooding at the lakes in July 2011, the lake levels have fallen below crest, lowering the threat of any additional carp from entering the lakes.
    “Our greatest fear is that these fish could impact recreation and the ecology of the lakes. Looking back however, we know we experienced at least part of a season with them in the lake without incident,” Hawkins said.

    While both species are problems for the fisheries, silver carp are more of a concern for boaters because of their tendency to jump out of the water and can grow to more than 50 pounds.
    “Ecologically, these fish are filter feeders and will compete with young fish for food. They are not likely to reproduce here because studies show they prefer large rivers for spawning,” Hawkins said.
    While anglers are not likely to catch one of these fish because they are filter feeders, if it does happen, Hawkins said they should bring them to the Spirit Lake Hatchery.
    The invasive carp were removed from the lake and utilized by a local fish processing company.
    DNR: Leaping carp found in East Okoboji, Spirit Lakes [includes video] | Des Moines Register Staff Blogs


    Last edited by TykeClone; 04-06-2012 at 01:37 PM.

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    Re: Asian Carp in Iowa Great Lakes

    If these jumping mother ****ers ruin my lakes and my summers I'm going to go Jeremy Wade on there *** and be one ****** off mother ******


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    Re: Asian Carp in Iowa Great Lakes



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    Re: Asian Carp in Iowa Great Lakes

    Asian Carp are pretty bad, if I remember correctly they were a parting gift on Wheel of Fish.



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    Re: Asian Carp in Iowa Great Lakes

    In all seriousness this could be very bad. These things are dangerous especially to skiiers and tubers. And it doesn't take long for them to over take a piece of water.



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    Re: Asian Carp in Iowa Great Lakes

    dam that sucks. (PUN)


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    Re: Asian Carp in Iowa Great Lakes

    they don't breed in lakes, just streams/rivers. If the DNR can control the 'upstream' swim of these things at Lower Gar, it should be manageable.

    -keep


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    Re: Asian Carp in Iowa Great Lakes

    Quote Originally Posted by Mycology View Post
    dam that sucks. (PUN)
    That does suck. Anybody else have any DAM questions? If so ask the DAM tour guide.



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    Re: Asian Carp in Iowa Great Lakes

    Quick, somebody get Marion Berry's take on Asian Carp in our district.


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    Re: Asian Carp in Iowa Great Lakes

    Quote Originally Posted by SuperTrooper View Post
    Asian Carp are pretty bad, if I remember correctly they were a parting gift on Wheel of Fish.
    Oh. Red Snapper, very tasty fish! You can hold onto it or trade it for what is in this box!



  11. #11
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    Re: Asian Carp in Iowa Great Lakes

    Quote Originally Posted by keepngoal View Post
    they don't breed in lakes, just streams/rivers. If the DNR can control the 'upstream' swim of these things at Lower Gar, it should be manageable.

    -keep
    My concern is that they haven't been successful with stopping common carp what makes them think they can stop these.



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    Re: Asian Carp in Iowa Great Lakes

    Quote Originally Posted by FarminCy View Post
    My concern is that they haven't been successful with stopping common carp what makes them think they can stop these.
    Couple major differences:

    1. the Common Carp prefers to reproduce in shallow slow-moving waters and thus is able to propagate wholly within a lake ecosystem.

    2. the Common Carp was systematically introduced to most of Iowa's waterways by the US FWS in the late 1880's because it was thought it would become a popular gamefish and provide a good source of protein for early settlers.

    This is a much different battle than a few individual specimens getting accidentally introduced into a system where they are thought not to be able to breed.


    Last edited by RayShimley; 04-06-2012 at 02:11 PM.

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    Re: Asian Carp in Iowa Great Lakes

    A commercial fishing company caught 55 silver carp and 82 big head carp on March 28 and 29, fishing in the same general area of East Okoboji Lake where two big head carp were netted by the Iowa DNR last August during a population survey.
    On April 3, one silver carp was caught by the same commercial angler in Spirit Lake.
    What kind of commercial fishing is there in these lakes?


    Asteroids are nature's way of asking "How's that space program going?"

  14. #14
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    Re: Asian Carp in Iowa Great Lakes

    Quote Originally Posted by TykeClone View Post
    What kind of commercial fishing is there in these lakes?
    Commercial fishing for rough fish (primarily Carp) to be canned and shipped to Asia.



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    Re: Asian Carp in Iowa Great Lakes

    Quote Originally Posted by RayShimley View Post
    Commercial fishing for rough fish (primarily Carp) to be canned and shipped to Asia.
    Serious question: how can you make a living as a commercial fisherman when you're only catching 70 carp per day which have to be exported to Asia?



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