0.25 POTAMOGETON PUSILLUS L. 3-6
 0.36 HELODEA CANADENSIS RICH 1-6
 0.39 POTAMOGETON PECTINATUS  1-6
 0.41 POTAMOGETON CRISPUS L.  1-6
 0.44 HELODEA CANADENSIS RICH 4-6
 0.44 MYRIOPHYLLUM SPICATUM L 1-6
 0.45 SPARGANIUM SIMPLEX HUDS 1-6
 0.45 RANUNCULUS CIRCINATUS S 1-6
 0.47 POTAMOGETON DENSUS L.   1-6
 0.47 RANUNCULUS CIRCINATUS S 3-6
 0.48 POTAMOGETON PECTINATUS  4-6
 0.49 ZANNICHELLIA PALUSTRIS  1-6
 0.49 POTAMOGETON NATANS L.   1-6
 0.50 SAGITTARIA SAGITTIFOLIA 1-6
 0.50 MYRIOPHYLLUM VERTICILLA 1-6
 0.50 CALLITRICHE OBTUSANGULA 1-6
 0.50 CERATOPHYLLUM DEMERSUM  1-6
 0.51 NUPHAR LUTEUM SM.       1-6
 0.51 POTAMOGETON PERFOLIATUS 1-6
 0.51 HOTTONIA PALUSTRIS L.   1-6
   0.54    SUBSP. PANORMITANUS  1-5
 0.55 POTAMOGETON LUCENS L.   1-6
   0.55 POTAMOGETON MUCRONATUS  1-5
 0.55 SPARGANIUM SIMPLEX HUDS 3-6
 0.56 HIPPURIS VULGARIS L.    1-6
 0.56 SAGITTARIA SAGITTIFOLIA 3-6
 0.56 HOTTONIA PALUSTRIS L.   3-6
 0.56 MYRIOPHYLLUM SPICATUM L 4-6
 0.57 CALLITRICHE OBTUSANGULA 3-6
   0.58 POTAMOGETON ZIZI MERT.  1-6