0.28 POTAMOGETON PECTINATUS  4-6
 0.39 POTAMOGETON PUSILLUS L. 1-6
 0.41 MYRIOPHYLLUM SPICATUM L 1-6
 0.41 POTAMOGETON CRISPUS L.  1-6
 0.41 HELODEA CANADENSIS RICH 1-6
 0.46 RANUNCULUS CIRCINATUS S 1-6
 0.46 NUPHAR LUTEUM SM.       1-6
 0.46 POTAMOGETON PERFOLIATUS 1-6
 0.47 MYRIOPHYLLUM VERTICILLA 1-6
 0.47 CALLITRICHE OBTUSANGULA 1-6
 0.48 ZANNICHELLIA PALUSTRIS  1-6
 0.48 POTAMOGETON PUSILLUS L. 3-6
 0.48 CERATOPHYLLUM DEMERSUM  1-6
 0.48 RANUNCULUS CIRCINATUS S 3-6
 0.49 SPARGANIUM SIMPLEX HUDS 1-6
 0.49 HELODEA CANADENSIS RICH 4-6
 0.50 POTAMOGETON LUCENS L.   1-6
 0.52 SAGITTARIA SAGITTIFOLIA 1-6
 0.52 POTAMOGETON NATANS L.   1-6
 0.54 MYRIOPHYLLUM SPICATUM L 4-6
 0.54 HOTTONIA PALUSTRIS L.   1-6
 0.55 POTAMOGETON DENSUS L.   1-6
 0.55 CALLITRICHE OBTUSANGULA 3-6
 0.56 POTAMOGETON CRISPUS L.  3-6
   0.56 POTAMOGETON ZIZI MERT.  1-6
 0.56 HIPPURIS VULGARIS L.    1-6
 0.56 NUPHAR LUTEUM SM.       5-6
   0.57 NAIAS MAJOR ALL.        1-6
 0.57 POTAMOGETON PERFOLIATUS 3-6
 0.57 SPARGANIUM SIMPLEX HUDS 3-6