68 CERATOPHYLLUM DEMERSUM  1-6
   65 TRAPA NATANS L.         1-6
   53 CERATOPHYLLUM DEMERSUM  4-6
   52 TRAPA NATANS L.         4-6
   23 POTAMOGETON TRICHOIDES  1-6
   16 RANUNCULUS CIRCINATUS S 1-6

   11 NUPHAR LUTEUM SM.       1-6
   10 RANUNCULUS CIRCINATUS S 3-6
    8 MYRIOPHYLLUM SPICATUM L 1-6
    8 MYRIOPHYLLUM VERTICILLA 1-6
    7 POTAMOGETON LUCENS L.   1-6
    4 NAIAS MAJOR ALL.        1-6

    2 NUPHAR LUTEUM SM.       4-6
    2 SPIRODELA POLYRRHIZA (L 1-6
    1 CERATOPHYLLUM SUBMERSUM 1-6
    1 NYMPHOIDES PELTATA (GME 1-6
    1 NYMPHAEA ALBA L.        1-6
    1 POTAMOGETON LUCENS L.   4-6

    1 POTAMOGETON PECTINATUS  1-6
    1 POTAMOGETON PERFOLIATUS 1-6
    1 POTAMOGETON PUSILLUS L. 1-6