Listes faunistiques invertébrés
L'Alzou à Villefranche de Rouergue 05126060
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| Date prélèvement | 08/07/2019 |
|---|---|
| Méthode | Petit cours d'eau | IBG | 18.0 |
| GFI | 8 |
| Variété taxonomique | 39 |
| Taxon indicateur | Brachycentridae |
| IBG |
|---|
| Etat : |
| Très bon |
| Bon |
| Moyen |
| Médiocre |
| Mauvais |
| Pas de référence |
| Substrat | Recouvrement (%) | Définition |
|---|---|---|
| Bryophytes | 1.0 | marginal |
| Hydrophytes | ||
| Litieres | 1.0 | marginal |
| Branchage, racines | 1.0 | marginal |
| Pierres, galets | 63.0 | dominant |
| Blocs | 7.0 | dominant |
| Granulats | ||
| Helophytes | ||
| Vases | ||
| Sables | 1.0 | marginal |
| Algues | 1.0 | marginal |
| Dalles, argiles | 25.0 | dominant |
| Microprélèvement | Substrat | Vitesse | Phase |
|---|---|---|---|
| P1 | Bryophytes | Moyenne | A |
| P2 | Litieres | Nulle | A |
| P3 | Branchage, racines | Nulle | A |
| P4 | Sables | Nulle | A |
| P5 | Pierres, galets | Nulle | B |
| P6 | Blocs | Nulle | B |
| P7 | Dalles, argiles | Lente | B |
| P8 | Pierres, galets | Lente | B |
| P9 | Pierres, galets | Moyenne | C |
| P10 | Pierres, galets | Nulle | C |
| P11 | Pierres, galets | Lente | C |
| P12 | Dalles, argiles | Nulle | C |
| Taxon | Code SANDRE | A | B | C |
|---|---|---|---|---|
| Leuctra | 69 | 4 | 80 | |
| Leuctra geniculata | 33830 | 1 | 43 | 150 |
| Perla | 164 | 11 | ||
| Perlidae | 155 | 2 | 6 | |
| Brachycentrus | 265 | 1 | ||
| Micrasema | 268 | 1 | ||
| Oligoplectrum maculatum | 264 | 7 | 5 | 11 |
| Goera pilosa | 288 | 2 | ||
| Cheumatopsyche lepida | 222 | 6 | 4 | |
| Hydropsyche | 212 | 150 | 24 | 170 |
| Hydroptila | 200 | 7 | 9 | 12 |
| Hydroptilidae | 193 | 4 | 15 | 11 |
| Athripsodes | 311 | 1 | ||
| Mystacides | 312 | 41 | 4 | 8 |
| Chimarra | 207 | 30 | ||
| Cyrnus | 224 | 6 | 2 | |
| Polycentropus | 231 | 1 | 45 | 15 |
| Polycentropodidae | 223 | 1 | 6 | 6 |
| Psychomyia pusilla | 240 | 7 | 143 | 122 |
| Tinodes | 245 | 1 | ||
| Rhyacophila lato-sensu | 183 | 2 | 8 | |
| Baetis lato sensu | 9794 | 64 | 3 | 19 |
| Centroptilum luteolum | 384 | 11 | ||
| Procloeon | 390 | 2 | 1 | |
| Procloeon bifidum | 391 | 1 | ||
| Baetidae | 363 | 14 | 1 | 4 |
| Caenis | 457 | 18 | 1 | |
| Ephemerella ignita | 451 | 4 | ||
| Ecdyonurus | 421 | 11 | 8 | |
| Rhithrogena | 404 | 2 | ||
| Heptageniidae | 399 | 1 | ||
| Leptophlebiidae | 473 | 1 | ||
| Oligoneuriella | 394 | 2 | ||
| Hydrometra | 740 | 1 | ||
| Laccophilinae | 2394 | 2 | ||
| Elmis | 618 | 25 | 12 | 75 |
| Esolus | 619 | 7 | 66 | 288 |
| Oulimnius | 622 | 2 | ||
| Riolus | 625 | 6 | 11 | |
| Hydraena | 608 | 1 | ||
| Athericidae | 838 | 1 | ||
| Ceratopogonidae | 819 | 1 | ||
| Chironomidae | 807 | 836 | 73 | 95 |
| Empididae | 831 | 1 | 3 | |
| Limoniidae | 757 | 64 | 41 | |
| Simuliidae | 801 | 14 | 10 | |
| Tabanidae | 837 | 1 | ||
| Boyeria irene | 671 | 1 | ||
| Gomphus | 679 | 3 | ||
| Onychogomphus | 682 | 3 | 2 | |
| Gomphidae | 678 | 1 | ||
| Platycnemis | 657 | 1 | ||
| Sialis | 704 | 2 | ||
| Gammarus | 892 | 731 | 15 | 145 |
| Gammaridae | 887 | 129 | 14 | |
| Pisidium | 1043 | 4 | ||
| Sphaeriidae | 1042 | 2 | 1 | 1 |
| Ancylus fluviatilis | 1029 | 3 | 114 | 133 |
| Potamopyrgus antipodarum | 979 | 15 | ||
| Theodoxus fluviatilis | 968 | 1 | 4 | |
| Physella | 19280 | 7 | ||
| Planorbidae | 1009 | 2 | ||
| Dugesiidae | 1055 | 1 | ||
| Oligochaeta | 933 | 16 | 42 | 6 |
| Nemathelmintha | 3111 | 1 | ||
| Copepoda | 3206 | 1 | 1 | |
| Hydracarina | 906 | 1 | 1 | 1 |