FRQ
   25 NUPHAR LUTEUM SM.       1-6
   25 CERATOPHYLLUM DEMERSUM  1-6
   18 CERATOPHYLLUM DEMERSUM  4-6
   14 NUPHAR LUTEUM SM.       4-6

   11 MYRIOPHYLLUM VERTICILLA 1-6
    7 RANUNCULUS CIRCINATUS S 1-6
    5 POTAMOGETON PECTINATUS  1-6
    5 MYRIOPHYLLUM SPICATUM L 1-6

    2 HELODEA CANADENSIS RICH 1-6
    2 RANUNCULUS CIRCINATUS S 3-6
    1 POTAMOGETON LUCENS L.   1-6
    1 POTAMOGETON CRISPUS L.  1-6

    1 MYRIOPHYLLUM SPICATUM L 4-6