33 POTAMOGETON PECTINATUS  1-6
   32 HELODEA CANADENSIS RICH 1-6
   26 POTAMOGETON PUSILLUS L. 1-6
   25 MYRIOPHYLLUM SPICATUM L 1-6
   20 POTAMOGETON CRISPUS L.  1-6
   19 ZANNICHELLIA PALUSTRIS  1-6
   16 HELODEA CANADENSIS RICH 4-6
   15 RANUNCULUS CIRCINATUS S 1-6
   14 POTAMOGETON DENSUS L.   1-6
   13 POTAMOGETON CRISPUS L.  2-6
   11 POTAMOGETON PECTINATUS  4-6
   11 POTA PUSI SUBS PANORMIT 1-6

   10 CERATOPHYLLUM DEMERSUM  1-6
   10 POTAMOGETON PUSILLUS L. 3-6
    9 CALLITRICHE OBTUSANGULA 1-6
    9 RANUNCULUS CIRCINATUS S 3-6
    9 POTAMOGETON LUCENS L.   1-6
    7 POTAMOGETON PERFOLIATUS 1-6
    7 SPARGANIUM SIMPLEX HUDS 1-6
    5 POTAMOGETON CRISPUS L.  3-6
    4 MYRIOPHYLLUM SPICATUM L 4-6
    4 POTAMOGETON MUCRONATUS  1-5
    4 ZANN PALU VAR. PALUSTRI 1-6
    3 MYRIOPHYLLUM VERTICILLA 1-6

    3 RANUNCULUS TRICHOPHYLLU 1-6
    3 LEMNA MINOR L.          1-6
    3 POTAMOGETON DENSUS L.   3-6
    3 AZOLLA FILICULOIDES LAM 1-6
    2 CALLITRICHE OBTUSANGULA 3-6
    2 HIPPURIS VULGARIS L.    1-6
    2 NUPHAR LUTEUM SM.       1-6
    2 ALISMA PLANTAGO L.      1-6
    2 LEMNA GIBBA L.          1-6
    2 LEMNA TRISULCA L.       1-6
    2 NAIAS MAJOR ALL.        1-6
    2 NAIAS MINOR ALL.        1-6

    2 POTAMOGETON FLUITANS RO 1-6
    2 POTA PUSI SUBS PANORMIT 4-6
    2 SPARGANIUM SIMPLEX HUDS 3-6
    1 CERATOPHYLLUM DEMERSUM  4-6
    1 RANUNCULUS FLUITANS LAM 1-6
    1 RANUNCULUS TRICHOPHYLLU 3-6
    1 RANU TRIC VAR. TRICHOPH 1-6
    1 POTAMOGETON ACUTIFOLIUS 1-6
    1 POTAMOGETON LUCENS L.   4-6
    1 POTAMOGETON X-ZIZI MERT 1-6
    1 ZANNICHELLIA PALUSTRIS  4-6