0.20 CALLITRICHE OBTUSANGULA 3-6
 0.43 HELODEA CANADENSIS RICH 1-6
 0.47 POTAMOGETON CRISPUS L.  1-6
 0.47 POTAMOGETON PECTINATUS  1-6
 0.48 SAGITTARIA SAGITTIFOLIA 1-6
 0.48 RANUNCULUS CIRCINATUS S 1-6
 0.49 HIPPURIS VULGARIS L.    1-6
 0.49 SPARGANIUM SIMPLEX HUDS 1-6
 0.50 POTAMOGETON PUSILLUS L. 1-6
 0.50 CERATOPHYLLUM DEMERSUM  1-6
 0.51 MYRIOPHYLLUM SPICATUM L 1-6
 0.51 HOTTONIA PALUSTRIS L.   1-6
 0.52 NUPHAR LUTEUM SM.       1-6
 0.52 HELODEA CANADENSIS RICH 4-6
 0.52 HIPPURIS VULGARIS L.    3-6
 0.52 MYRIOPHYLLUM VERTICILLA 1-6
 0.54 POTAMOGETON NATANS L.   1-6
 0.54 RANUNCULUS CIRCINATUS S 3-6
 0.54 SAGITTARIA SAGITTIFOLIA 3-6
 0.55 HYDROCHARIS MORSUS-RANA 1-6
 0.55 POTAMOGETON LUCENS L.   1-6
 0.55 POTAMOGETON PECTINATUS  4-6
 0.56 SPARGANIUM SIMPLEX HUDS 3-6
 0.56 POTAMOGETON PERFOLIATUS 1-6
 0.56 HOTTONIA PALUSTRIS L.   3-6
 0.57 LEMNA TRISULCA L.       1-6
 0.57 POTAMOGETON DENSUS L.   1-6
 0.58 POTAMOGETON PUSILLUS L. 3-6
 0.58 ZANNICHELLIA PALUSTRIS  1-6
   0.60 NYMPHOIDES PELTATA (GME 1-6