0.25 HELODEA CANADENSIS RICH 4-6
 0.36 POTAMOGETON CRISPUS L.  1-6
 0.36 POTAMOGETON PUSILLUS L. 1-6
 0.36 SPARGANIUM SIMPLEX HUDS 1-6
 0.37 RANUNCULUS CIRCINATUS S 1-6
 0.38 MYRIOPHYLLUM SPICATUM L 1-6
 0.38 SAGITTARIA SAGITTIFOLIA 1-6
 0.40 RANUNCULUS CIRCINATUS S 3-6
 0.41 POTAMOGETON PECTINATUS  1-6
 0.41 CERATOPHYLLUM DEMERSUM  1-6
 0.41 POTAMOGETON NATANS L.   1-6
 0.43 CALLITRICHE OBTUSANGULA 1-6
 0.43 HOTTONIA PALUSTRIS L.   1-6
 0.43 POTAMOGETON DENSUS L.   1-6
 0.43 NUPHAR LUTEUM SM.       1-6
 0.45 MYRIOPHYLLUM VERTICILLA 1-6
 0.47 SPARGANIUM SIMPLEX HUDS 3-6
 0.48 SAGITTARIA SAGITTIFOLIA 3-6
 0.48 HYDROCHARIS MORSUS-RANA 1-6
 0.48 POTAMOGETON PERFOLIATUS 1-6
 0.49 HOTTONIA PALUSTRIS L.   3-6
 0.50 HIPPURIS VULGARIS L.    1-6
 0.50 POTAMOGETON PUSILLUS L. 3-6
 0.50 POTAMOGETON PECTINATUS  4-6
 0.50 CALLITRICHE OBTUSANGULA 3-6
 0.51 POTAMOGETON LUCENS L.   1-6
 0.51 LEMNA TRISULCA L.       1-6
 0.52 POTAMOGETON NATANS L.   5-6
 0.53 HIPPURIS VULGARIS L.    3-6
   0.53 POTAMOGETON MUCRONATUS  1-5