Listes floristiques macrophytes

La Loire à Villerest 04013000

Date prélèvement 27/08/2015
IBMR 7.20
Robustesse 7.46
Recouvrement UR1 98.00%
Faciès UR1 ch. lotique (98%)
Recouvrement UR2 2.00%
Faciès UR2 autre (2%)
Taxon Code SANDRE Code IRSTEA % rec taxon UR1 % rec taxon UR2 % station
Spirogyra 1147 SPISPX 17.085 16.01 17.0635
Elodea nuttalii 1588 ELONUT 2.625 20 2.9725
Potamogeton nodosus 1652 POTNOD 2 0 1.96
Myriophyllum spicatum 1778 MYRSPI 1.425 0.01 1.3967
Lemna gibba 1625 LEMGIB 1.0455 18.1818 1.3882
Lemna minor 1626 LEMMIN 1.0455 18.1818 1.3882
Potamogeton trichoides 1661 POTTRI 1.25 0 1.225
Oedogonium 1134 OEDSPX 0.01 58.01 1.17
Hydrodictyon 5686 HYISPX 1.185 0.02 1.1617
Spirodela polyrhiza 1630 SPRPOL 0.7841 13.6364 1.0411
Sparganium erectum 1671 SPAERE 0.75 0.01 0.7352
Elodea canadensis 1586 ELOCAN 0 20 0.4
Callitriche hamulata 1698 CALHAM 0.375 0.7 0.3815
Persicaria hydropiper 31021 PERHYD 0 17 0.34
Melosira 8714 MELSPX 0 6 0.12
Potamogeton crispus 1645 POTCRI 0.025 0.01 0.0247
Ranunculus fluitans 1903 RANFLU 0 0.8 0.016
Lemna minuta 29962 LEMMIT 0.01 0.01 0.01
Fontinalis antipyretica 1310 FONANT 0 0.2 0.004
Fissidens fontanus 31545 FISFON 0 0.2 0.004
Lythrum salicaria 1823 LYTSAL 0 0.2 0.004
Carex acuta 1467 CARACU 0 0.1 0.002
Cladophora 1124 CLASPX 0 0.01 0.0002
Ranunculus repens 1910 RANREP 0 0.01 0.0002
Echinochloa crus-galli 1560 ECHCRU 0 0.01 0.0002
Cyperus esculentus 1497 CYPESC 0 0.01 0.0002
Leptodictyum riparium 1244 LEORIP 0 0.01 0.0002
Phalaris arundinacea 1577 PHAARU 0 0.01 0.0002
Agrostis stolonifera 1543 AGRSTO 0 0.01 0.0002