26 TRAPA NATANS L.         1-6
   25 TRAPA NATANS L.         4-6
   18 CERATOPHYLLUM DEMERSUM  1-6
   15 NUPHAR LUTEUM SM.       1-6
    7 POTAMOGETON LUCENS L.   1-6

    6 NUPHAR LUTEUM SM.       4-6
    5 NYMPHAEA ALBA L.        1-6
    5 NAIAS MAJOR ALL.        1-6
    3 CERATOPHYLLUM DEMERSUM  5-6
    3 MYRIOPHYLLUM VERTICILLA 1-6

    3 SPIRODELA POLYRRHIZA (L 1-6
    2 LEMNA MINOR L.          1-6
    1 CERATOPHYLLUM SUBMERSUM 1-6
    1 NYMPHOIDES PELTATA (GME 1-6
    1 RANUNCULUS CIRCINATUS S 1-6

    1 POTAMOGETON CRISPUS L.  1-6
    1 POTAMOGETON PUSILLUS L. 1-6
    1 AZOLLA FILICULOIDES LAM 1-6