Rowly - My personal experience is that the LMB in your pond will be much more efficient than the northern pike at controling the numbers of small perch. Two main reasons. LMB will be more prolific than the pike, thus you will have a more even constant supply of small predators to feed on perch. 2. I think pike tend to be slightly more selective than LMB at what size forage fish they eat. I think LMB will eat a more wide variety of perch sizes than pike.

I do not think the body metabolism of pike is greater than that of the LMB, thus I don't think the pike will eat more fish when comparing pound for pound of predator. As pike get large (greater than 32")in our system, I think the pike will "chose" to also eat LMB in addition to perch. And the percentage of LMB that are consumed by pike will increase as the pike grow larger (beyond 32") thus the numbers of valuable LMB (8"-13") that are eating small perch will then be decreased and lost to pike predation. As your system ages I think you may find that the bass are becoming too abundant and causing too much predation pressure on the perch. You will have to monitor this closely.

I think your initial idea of adding walleye to suppliment LMB & SMB as predators in your system is sound. Walleye have been found to tend to forage on relatively smaller food items compared to similar sized pike. Walleye, bass, and perch should help control the young LMB. Last night I caught a 9.2" and 9.8" perch on young perch as bait that were 4.1" & 4.3" respectively. So medium and larger perch should be able to easily eat small bass in the 1" to 3" range.

Plus walleye are better table fare than pike; at least as far as bones. Although walleye are not a "sporting" as pike.
Obviously all this is speculation because the fish in your gravel pit have not read the "book".

aka Pond Doctor & Dr. Perca Read Pond Boss Magazine -
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