0.25 SAGITTARIA SAGITTIFOLIA 3-6
 0.36 SPARGANIUM SIMPLEX HUDS 1-6
 0.38 HELODEA CANADENSIS RICH 1-6
 0.39 HOTTONIA PALUSTRIS L.   1-6
 0.40 SPARGANIUM SIMPLEX HUDS 3-6
 0.41 POTAMOGETON NATANS L.   1-6
 0.43 NUPHAR LUTEUM SM.       1-6
 0.44 POTAMOGETON LUCENS L.   1-6
 0.45 RANUNCULUS CIRCINATUS S 1-6
 0.46 MYRIOPHYLLUM SPICATUM L 1-6
 0.47 HIPPURIS VULGARIS L.    1-6
 0.47 MYRIOPHYLLUM VERTICILLA 1-6
 0.48 CALLITRICHE OBTUSANGULA 1-6
 0.49 HELODEA CANADENSIS RICH 4-6
 0.49 HYDROCHARIS MORSUS-RANA 1-6
 0.49 POTAMOGETON CRISPUS L.  1-6
 0.50 POTAMOGETON PUSILLUS L. 1-6
 0.50 HOTTONIA PALUSTRIS L.   3-6
 0.50 CERATOPHYLLUM DEMERSUM  1-6
 0.51 LEMNA MINOR L.          1-6
 0.51 HIPPURIS VULGARIS L.    3-6
 0.52 POTAMOGETON PECTINATUS  1-6
 0.52 RANUNCULUS CIRCINATUS S 3-6
 0.53 NYMPHAEA ALBA L.        1-6
 0.53 LEMNA TRISULCA L.       1-6
 0.53 POTAMOGETON DENSUS L.   1-6
 0.53 POTAMOGETON PERFOLIATUS 1-6
 0.53 RANUNCULUS AQUATILIS L. 1-6
 0.54 CALLITRICHE OBTUSANGULA 3-6
 0.55 ALISMA NATANS L.        1-4