04-19-2012, 12:00 AM
C, I agree with you and I think you are right, but your comments may not be completely accurate.
I'm having some trouble finding documentation on this, but bottom feeders have more contaminants than fish that feed higher in the water. For instance catfish and suckers have higher contmination than trout and salmon. The heavy metals sink to the bottom of the lake, so fish that live and feed there are inclined to have higher contamination levels. I don't know it all, but it seems that crayfish feed primarily on the bottom, and they live on the bottom, so it seems they might be inclined to have higher levels of contaminants.
I think it is worth thinking about.
Again, I am having trouble documenting it, so help me out if I am wrong.
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I'm having some trouble finding documentation on this, but bottom feeders have more contaminants than fish that feed higher in the water. For instance catfish and suckers have higher contmination than trout and salmon. The heavy metals sink to the bottom of the lake, so fish that live and feed there are inclined to have higher contamination levels. I don't know it all, but it seems that crayfish feed primarily on the bottom, and they live on the bottom, so it seems they might be inclined to have higher levels of contaminants.
I think it is worth thinking about.
Again, I am having trouble documenting it, so help me out if I am wrong.
[signature]