0.33 UTRICULARIA VULGARIS L. 3-6
 0.49 HYDROCHARIS MORSUS-RANA 1-6
 0.52 POTAMOGETON NATANS L.   1-6
 0.53 LEMNA TRISULCA L.       1-6
 0.54 HOTTONIA PALUSTRIS L.   1-6
 0.56 NYMPHAEA ALBA L.        1-6
 0.57 LEMNA MINOR L.          1-6
 0.58 NUPHAR LUTEUM SM.       1-6
 0.58 HELODEA CANADENSIS RICH 1-6
 0.58 HOTTONIA PALUSTRIS L.   3-6
 0.59 HYDROCHARIS MORSUS-RANA 4-6
 0.60 SPIRODELA POLYRRHIZA (L 1-6
 0.60 CERATOPHYLLUM DEMERSUM  1-6
 0.60 SPARGANIUM SIMPLEX HUDS 1-6
 0.60 HIPPURIS VULGARIS L.    1-6
 0.60 SAGITTARIA SAGITTIFOLIA 1-6
 0.61 ALISMA NATANS L.        1-4
   0.61 SPARGANIUM MINIMUM FRIE 1-6
 0.61 UTRICULARIA MAJOR SCHMI 1-6
 0.61 MYRIOPHYLLUM VERTICILLA 1-6
 0.61 MYRIOPHYLLUM SPICATUM L 1-6
 0.62 RANUNCULUS AQUATILIS L. 1-6
 0.62 RANUNCULUS CIRCINATUS S 1-6
 0.62 LEMNA TRISULCA L.       4-6
 0.62 HIPPURIS VULGARIS L.    3-6
 0.62 POTAMOGETON LUCENS L.   1-6
 0.63 LEMNA MINOR L.          3-6
 0.64 SPARGANIUM SIMPLEX HUDS 3-6
 0.64 POTAMOGETON CRISPUS L.  1-6
 0.64 CERATOPHYLLUM DEMERSUM  5-6