Abondance faible
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Abond. moyenne
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Abondance forte
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0.27 SPIRODELA POLYRRHIZA (L 3-6
0.33 LEMNA MINOR L. 1-6
0.34 LEMNA TRISULCA L. 1-6
0.37 LEMNA MINOR L. 3-6
0.37 HYDROCHARIS MORSUS-RANA 1-6
0.45 LEMNA TRISULCA L. 4-6
0.46 HYDROCHARIS MORSUS-RANA 4-6
0.49 AZOLLA FILICULOIDES LAM 1-6
0.49 LEMNA GIBBA L. 1-6
0.50 SALVINIA NATANS (L.) AL 1-6
0.50 CERATOPHYLLUM DEMERSUM 1-6
0.52 SAGITTARIA SAGITTIFOLIA 1-6
0.52 HELODEA CANADENSIS RICH 1-6
0.54 NUPHAR LUTEUM SM. 1-6
0.55 HOTTONIA PALUSTRIS L. 1-6
0.55 WOLFFIA ARRHIZA (L.) WI 1-6
0.55 CALLITRICHE OBTUSANGULA 1-6
0.55 RANUNCULUS CIRCINATUS S 1-6
0.56 MYRIOPHYLLUM VERTICILLA 1-6
0.56 SPARGANIUM SIMPLEX HUDS 1-6
0.56 POTAMOGETON NATANS L. 1-6
0.57 POTAMOGETON CRISPUS L. 1-6
0.57 HIPPURIS VULGARIS L. 1-6
0.57 MYRIOPHYLLUM SPICATUM L 1-6
0.57 POTAMOGETON FLUITANS RO 1-6
0.57 HOTTONIA PALUSTRIS L. 3-6
0.58 POTAMOGETON LUCENS L. 1-6
0.58 HELODEA CANADENSIS RICH 4-6
0.58 UTRICULARIA VULGARIS L. 1-6
0.58 POTAMOGETON COMPRESSUS 1-3
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