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Destroying the Pike, and everything in the water...

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  • Destroying the Pike, and everything in the water...

    Has anyone heard anything more on the initiative petitioned to the state to use some sort of chemical in the lakes to get rid of the pike?

    I heard that they petitioned the state and the state was going to make a decision soon. The chemical would kill the pike (and trout) in the lakes that had a pike infestation and then they would re-introduce the trout.

    I wish I had the opportunity to attend one of the meetings for this. I was wondering if applying this chemical to a lake would:
    1. kill the plant life?
    2. what would happen to animals that ate the carcasses, like sea gulls and such?
    3. are there enough trout fisheries to support the re-introduction of trout to all these lakes?
    4. What happens to beaver and other support wildlife?
    5. If they had this technology before, why haven't they killed the dang mosquitoes? (just kidding)

    I'm curious about these things. I'm sure that people involved are asking these questions also. I'm also pretty sure they are smarter than I am about this stuff.

  • #2
    From what I have read, the stuff they use removes the oxygen from the water, suffocating the fish. The lakes in question are ones that previously were stocked with trout (Cheney, Lower Fire, etc.) and have been taken over by pike as the lakes are not deep enough to allow trout and salmon fry a place to hide.

    The stuff breaks down very quickly and since the fish have suffocated rather than being outright poisoned, there is little concern about other animals eating the dead fish.

    Again, this is from what I have read. There may be some problems with the stuff that I have not read about.
    Just a bitter Alaskan clinging to his guns and religion.....


    • #3
      Bilder hit it on the head. This stuff sounds like its not too bad at all for anything but the fish. Here is a link to the chemical manual and another one to the original article.
      US Air Force - retired and Wildlife photographer

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      • #4
        Attached is a link to the Department's web site providing quite a bit of information on the subject.


        • #5

          Thanks much, good information. It answered all my questions.


          • #6

            kill the beavers right along with the pike.


            • #7
              Its called Retnone. It kills by depriving O2 to the fish. harless to an eagle who eats the dead fish and will not harm plants.


              • #8
                How's that? Beavers don't breathe underwater...

                Did I misunderstand your post..? Are you suggesting that we go ahead and kill beavers as well as the pike or were you concerned that killing the pike would have an adverse effect on the beavers?

                Originally posted by Bullelkklr View Post
                kill the beavers right along with the pike.


                • #9


                  Answers to your questions:

                  1. Rotenone does not kill plants. In fact rotenone is made from a plant, the derris plant that is native to South America.

                  2. Since birds and mammals have a high tolerance to rotenone if they feed on the fish killed with rotenone they should not have any problems – except maybe gain some weight!

                  3. This question I really can’t answer, however trout stocked in ponds and lakes that have been treated with rotenone usually have fairly rapid growth (no competition, plentiful food when the insects recover, etc.).

                  4. Beaver should be unharmed by the rotenone.

                  5. Killing mosquitoes is an entirely different issue!!!


                  Rotenone does not remove oxygen from the water. As fish breath they take up the rotenone when it is the water and it inhibits their respiration at the cellular level. The breakdown of rotenone in water depends on the water temperature, the higher the water temperature the faster it breaks down – maybe 5 days with water temperatures in the 80-85F range to 4-6 weeks when lakes are treated under the ice.



                  • #10
                    Public Comment Period for Cheny Lake

                    The Department of Environmental Conservation is currently taking written public comments through August 23rd for allowing the use of rotenone in Cheney Lake. Dependent upon the comments received the DEC will either approve or deny the pesticide application permit.

                    Personally, I hope that the permit will be approved and the rehabilitation of the rainbow trout fishery is a success. But, after attending an informational meeting relative to the rotenone use last week; my concern is that the permit will not be approved due to the outcry of property owners surrounding Cheney Lake who prefer not to have their piece of paradise disturbed by the 7,000 angler days the lake use to witness.

                    Now think about this... Wouldn't it be refreshing to see a public resource used by parents & kids or just kids fishing again, instead of the alternatives?


                    • #11
                      Put a bounty on the pike, like 50 cents each and the kids in Anchorage would have something constructive to do.
                      When seconds count, the cops are just minutes away.
                      '08 24' HCM Granite HD "River Dog"
                      2018 12' Moto Jet "River Pup"


                      • #12
                        Kill the Pike!

                        Kill the Pike!

                        Retenone, Nets, Rod n Reel, Dynamite.... whatever...
                        I hate Pike!


                        • #13
                          I don't happen to hate pike but....

                          I support removing them from wherever they've destroyed an established fishery (i.e. Red Shirt Lake)
                          If cave men had been trophy hunters the Wooly Mammoth would be alive today


                          • #14
                            Anybody know what came of all this?

                            Any updates?
                            "Let every angler who loves to fish think what it would mean to him to find the fish were gone." Zane Grey
                            The KeenEye MD


                            • #15
                              Originally posted by fishNphysician View Post
                              Anybody know what came of all this?

                              Any updates?
                              I know they treated Cheney Lake in Anchorage already. There was a brief story on Channel 2 about it.
                              "Fishing relaxes me. It's like yoga, except I still get to kill something." --Ron Swanson


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