Dono - You selectively use water from the drainage ditch as fill or make-up water - correct? I am convinced that shiners eat lots of swim-up YP fry. 100's to 1000's of shiners are capable of consuming very high amounts of YP fry that are not much bigger than many crustacean zooplankton. Thus hundreds of thousands to millions of fry can become food over the course of several days as shiners gorge on fish fry.
Bill do you think loading a 1 acre crappie pond with gallons of shiners, would help reduce recrutment? (This pond has perch too, so still relevant, hehe)
NOT and expert but I would expect that it all gos back to the timing of the crappie spawn and perch spawn. If the crappie young are desirable to the shiners over what other young are available. Great question.
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