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Thread: New Regulation for Crappie in Effect March 1, 2019 at Wappapello Lake

  1. #11
    Join Date
    Mar 2009
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    Missouri
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    Man-Made reservoirs usually have very little aquatic vegetation, especially if the water levels fluctuate a lot. Even stable reservoirs can take over 50 years to develop aquatic plant communities. These lakes are built over previous uplands and they do not have the seed stock of aquatic plants to populate the lake with vegetation. Black crappie rely on aquatic insects for a larger portion of their diet than white crappie do. Aquatic vegetation is essential to producing substantial numbers of aquatic insects. Aquatic vegetation can produce 100x the insects than bare bottom. While I don't manage Wappapello, I would be surprised if this isn't the reason there. Hopefully Dave Knuth will comment soon.
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  2. #12
    Join Date
    Sep 2012
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    Missouri
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    Bajacoop, Black Crappie do not grow in Wappapello Lake because their diet mainly consist of insects and they prefer clear vegetated waters. Wappapello Lake's clarity and extreme water level changes does not support the vegetation needed for aquatic insects to thrive. Only about 2% of the Black Crappie reach 9 inches. Pool 1 at Duck Creek CA is a great example of a habitat type where Black Crappie do very well. It is clear and full of vegetation and supports a good invertebrate community.

    Let me know if you have any other questions.
    Dave
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