FRQ
   29 POTAMOGETON TRICHOIDES  1-6
   22 MYRIOPHYLLUM SPICATUM L 1-6
   20 POTAMOGETON TRICHOIDES  4-6
   16 POTAMOGETON CRISPUS L.  1-6
   14 RANUNCULUS AQUATILIS L. 1-6
   12 MYRIOPHYLLUM SPICATUM L 4-6
   10 POTAMOGETON NATANS L.   1-6
    9 LEMNA MINOR L.          1-6
    7 POTAMOGETON CRISPUS L.  2-6

    7 CERATOPHYLLUM DEMERSUM  1-6
    5 POTAMOGETON PECTINATUS  1-6
    5 POTAMOGETON CRISPUS L.  3-6
    5 HELODEA CANADENSIS RICH 1-6
    4 POTAMOGETON GRAMINEUS L 1-6
    4 RANUNCULUS AQUATILIS L. 4-6
    3 POTAMOGETON GRAMINEUS L 4-6
    3 TRAPA NATANS L.         1-6
    2 SPARGANIUM SIMPLEX HUDS 1-6

    2 SPARGANIUM SIMPLEX HUDS 3-6
    2 LEMNA TRISULCA L.       1-6
    2 UTRICULARIA MAJOR SCHMI 1-6
    2 MYRIOPHYLLUM ALTERNIFLO 1-6
    2 CERATOPHYLLUM DEMERSUM  4-6
    1 ZANNICHELLIA PALUSTRIS  1-6
    1 POTAMOGETON PUSILLUS L. 1-6
    1 POTAMOGETON PERFOLIATUS 1-6
    1 POTAMOGETON PERFOLIATUS 3-6

    1 POTAMOGETON DENSUS L.   1-6
    1 POTAMOGETON DENSUS L.   3-6
    1 LEMNA MINOR L.          3-6
    1 HYDROCHARIS MORSUS-RANA 1-6
    1 RANUNCULUS TRICHOPHYLLU 1-6
    1 RANUNCULUS CIRCINATUS S 1-6
    1 NUPHAR LUTEUM SM.       1-6
    1 MYRIOPHYLLUM BRASILIENS 1-4
    1 CALLITRICHE HAMULATA KU 1-6