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Jan 23rd, 2013
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Broken Bow Lake Consumtion Ban #12654923
03/02/18 03:01 PM
03/02/18 03:01 PM
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Dallas, TX
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It seem Broken Bow always has something negitive going on up there.

Please donít feed your kids the fish from up there. If there is a ban on a bigger fish, just donít even eat the small ones.


http://www.deq.state.ok.us/CSDnew/fish/PDFs/





Re: Broken Bow Lake Consumtion Ban [Re: TarponFly] #12656698
03/03/18 07:28 PM
03/03/18 07:28 PM
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Grandview, TX
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That lake always seems to have the cleanest, clearest water around, what gives?

Last edited by crapicat; 03/03/18 07:29 PM.
Re: Broken Bow Lake Consumtion Ban [Re: TarponFly] #12656775
03/03/18 09:26 PM
03/03/18 09:26 PM
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mckinney, tx
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Best I can figure itís higher mercury content in the soil in that area....water can look clean while heavy metals are still present, best I can figure itís common out east because several other east Texas lakes as well as SE Oklahoma lakes that are far away from any sort of industry also have consumption bans or advisories.


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Re: Broken Bow Lake Consumtion Ban [Re: Mckinneycrappiecatcher] #12657512
03/04/18 03:13 PM
03/04/18 03:13 PM
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Grandview, TX
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Ok, that makes some sense...but there is something that seems out of sorts here...

It somehow seems odd that there is a consumption advisory on white crappie but not black crappie...in essence, it more like they are just trying to limit a fishermanís take of fish with lower population density, rather than a metals issue, which should treat both black/white crappie the same...

Re: Broken Bow Lake Consumtion Ban [Re: crapicat] #12657756
03/04/18 06:35 PM
03/04/18 06:35 PM
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mckinney, tx
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Originally Posted By: crapicat
Ok, that makes some sense...but there is something that seems out of sorts here...

It somehow seems odd that there is a consumption advisory on white crappie but not black crappie...in essence, it more like they are just trying to limit a fishermanís take of fish with lower population density, rather than a metals issue, which should treat both black/white crappie the same...
it likely has to do with the diet of each fish, white crappie are much heavier fish eaters while black crappie can have a tendency to eat more crawfish, bugs, etc....at least thatís my best guess, I do know the diet of white and black crappie does tend to vary quite a bit. And broken bow lake is full of white and black crappie, so it wouldnít make a whole lot of sense


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Re: Broken Bow Lake Consumtion Ban [Re: Mckinneycrappiecatcher] #12658158
03/05/18 12:12 AM
03/05/18 12:12 AM
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Originally Posted By: Mckinneycrappiecatcher
it likely has to do with the diet of each fish, white crappie are much heavier fish eaters while black crappie can have a tendency to eat more crawfish, bugs, etc....at least thatís my best guess, I do know the diet of white and black crappie does tend to vary quite a bit. And broken bow lake is full of white and black crappie, so it wouldnít make a whole lot of sense


Right answer McKinney, that's biomagnification at work. Each step up the food chain toxic substances accumulate so the keystone predators will have the highest concentrations of bad stuff in them.

I also concur that, black crappie tend to eat more insects which in theory would have less toxins than the minnows and other baitfish that make up most of a white crappie's diet.

Re: Broken Bow Lake Consumtion Ban [Re: MassAction] #12659076
03/05/18 04:47 PM
03/05/18 04:47 PM
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Crappie, both kinds, eat mostly daphnia...While young....it is when they get larger that the white crappie eat more fish in their diet...but daphnia still make up a significant portion of their diet...but if I hear what you are saying, then the Shad in that lake have heavy metal problems? If so, there should be some research papers published on the subject, as the govt is usually very thorough on such matters.

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