31 POTAMOGETON PERFOLIATUS 1-6
   26 POTAMOGETON PECTINATUS  1-6
   26 MYRIOPHYLLUM SPICATUM L 1-6
   22 POTAMOGETON LUCENS L.   1-6
   11 SPARGANIUM SIMPLEX HUDS 1-6
   10 POTAMOGETON PERFOLIATUS 3-6
   10 RANUNCULUS CIRCINATUS S 1-6
   10 MYRIOPHYLLUM SPICATUM L 4-6
   10 CERATOPHYLLUM DEMERSUM  1-6
    7 POTAMOGETON NATANS L.   1-6
    7 NUPHAR LUTEUM SM.       1-6
    5 MYRIOPHYLLUM VERTICILLA 1-6

    4 POTAMOGETON LUCENS L.   4-6
    4 BUTOMUS UMBELLATUS L.   1-5
    4 RANUNCULUS CIRCINATUS S 3-6
    4 CALLITRICHE OBTUSANGULA 1-6
    3 POTAMOGETON PUSILLUS L. 1-6
    3 LEMNA MINOR L.          1-6
    3 VERONICA ANAGALLIS L.   1-5
    2 SPARGANIUM RAMOSUM CURT 1-6
    2 POTAMOGETON CRISPUS L.  1-6
    2 NAIAS MAJOR ALL.        1-6
    2 LEMNA TRISULCA L.       1-6
    2 ALISMA PLANTAGO L.      1-6

    2 TRAPA NATANS L.         1-6
    2 RANUNCULUS TRICHOPHYLLU 1-6
    2 NYMPHAEA ALBA L.        1-6
    2 UTRICULARIA MAJOR SCHMI 1-6
    1 AZOLLA FILICULOIDES LAM 1-6
    1 POTA PUSI SUBS PANORMIT 1-6
    1 POTAMOGETON PECTINATUS  4-6
    1 POTAMOGETON ACUTIFOLIUS 1-6
    1 NAIAS MINOR ALL.        1-6
    1 NAIAS MAJOR ALL.        4-6
    1 SPIRODELA POLYRRHIZA (L 1-6
    1 HELODEA CANADENSIS RICH 1-6

    1 HELODEA CANADENSIS RICH 4-6
    1 BUTOMUS UMBELLATUS L.   3-5
    1 SAGITTARIA SAGITTIFOLIA 1-6
    1 SIUM ERECTUM HUDSON     1-6
    1 RANUNCULUS TRICHOPHYLLU 3-6
    1 RANUNCULUS FLUITANS LAM 1-6
    1 NUPHAR LUTEUM SM.       4-6
    1 NYMPHOIDES PELTATA (GME 1-6
    1 HIPPURIS VULGARIS L.    1-6
    1 MYRIOPHYLLUM VERTICILLA 4-6