Weirs don't stop the movement of Common Carp into the wetland ponds and pools, as shown by this photograph taken at Weir N (located in the south wetland complex and which empties into the SW corner of the south lake). However, I saw more carp being pushed over the weir by the force of the water flow than the number jumping over the weir into the pond. Carp create havoc in these small ponds by stirring up the bottom and uprooting plants.
Wolf
Ames
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