FRQ
   25 NAIAS MINOR ALL.        1-6
   24 NAIAS MAJOR ALL.        1-6
   16 NAIAS MINOR ALL.        3-6
   14 POTAMOGETON LUCENS L.   1-6
   10 POTAMOGETON TRICHOIDES  1-6
   10 NAIAS MAJOR ALL.        4-6
   10 CERATOPHYLLUM DEMERSUM  1-6

    9 MYRIOPHYLLUM SPICATUM L 1-6
    8 NAIAS MINOR ALL.        4-6
    7 POTAMOGETON PECTINATUS  1-6
    6 POTAMOGETON CRISPUS L.  1-6
    5 ZANNICHELLIA PALUSTRIS  1-6
    5 POTAMOGETON PERFOLIATUS 1-6
    4 TRAPA NATANS L.         1-6

    3 POTAMOGETON PERFOLIATUS 3-6
    2 HELODEA CANADENSIS RICH 1-6
    2 RANUNCULUS CIRCINATUS S 1-6
    2 HIPPURIS VULGARIS L.    1-6
    2 CERATOPHYLLUM DEMERSUM  4-6
    1 POTAMOGETON X-ZIZI MERT 1-6
    1 POTAMOGETON X-ZIZI MERT 4-6

    1 POTAMOGETON PUSILLUS L. 1-6
    1 POTAMOGETON PUSILLUS L. 3-6
    1 POTAMOGETON PECTINATUS  4-6
    1 TRAPA NATANS L.         4-6
    1 RANUNCULUS CIRCINATUS S 3-6
    1 MYRIOPHYLLUM SPICATUM L 4-6
    1 CALLITRICHE OBTUSANGULA 1-6