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Joined: Mar 2009
Posts: 4
Fingerling
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Fingerling
Joined: Mar 2009
Posts: 4 |
Must lower the lake from 7 acres to 4. Has been an excellent LMB and crappie lake. We were going to remove thousands of crappie this spring to allow bigger growth but the lake has dropped almost half and we cannot raise it back up. How will this impact our lake and what can we do if anything?
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Joined: Jul 2005
Posts: 4,596 Likes: 36
Lunker
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Lunker
Joined: Jul 2005
Posts: 4,596 Likes: 36 |
I'm guessing that the forced crowding of your current fish population into a much smaller area will lead to "survial of the biggest", especially if there is not a lot of cover for your smaller fish to hide. Big fish booms tend to follow prolonged low water levels once the water level comes back up.
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Joined: Jan 2009
Posts: 10,458 Likes: 2
Ambassador Field Correspondent Hall of Fame Lunker
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Ambassador Field Correspondent Hall of Fame Lunker
Joined: Jan 2009
Posts: 10,458 Likes: 2 |
I agree, a lot of of smaller lakes are managed that way. They are drained down a by a 1/3 or so to concentrate the fish more and allow higher predation rates on the BG and BCP by the LMB.
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Joined: Mar 2005
Posts: 21,475 Likes: 264
Moderator Hall of Fame 2014 Lunker
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Moderator Hall of Fame 2014 Lunker
Joined: Mar 2005
Posts: 21,475 Likes: 264 |
Last edited by ewest; 03/19/09 09:05 AM.
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Joined: Mar 2009
Posts: 4
Fingerling
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OP
Fingerling
Joined: Mar 2009
Posts: 4 |
we raised the lake 4 yrs ago and the dam is leaking at the original level without a budget to fix it. It is permanent
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Joined: Mar 2005
Posts: 21,475 Likes: 264
Moderator Hall of Fame 2014 Lunker
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Moderator Hall of Fame 2014 Lunker
Joined: Mar 2005
Posts: 21,475 Likes: 264 |
You will have 7 acres of fish (biomass) in 4 acres of water (carrying capacity). Not a real good idea with prolonged ice or summer thermocline as both reduce DO. I would start catching and removing fish. Good news is the predators should be fat.
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