Listes faunistiques invertébrés
L'Alzou à Villefranche de Rouergue 05126060
- Télécharger la fiche IRSTEA xls / 619 ko
- Export SEEE csv / 10 ko
| Date prélèvement | 07/09/2021 |
|---|---|
| Méthode | Petit cours d'eau | IBG | 20.0 |
| GFI | 9 |
| Variété taxonomique | 42 |
| IBG |
|---|
| Etat : |
| Très bon |
| Bon |
| Moyen |
| Médiocre |
| Mauvais |
| Pas de référence |
| Substrat | Recouvrement (%) | Définition |
|---|---|---|
| Bryophytes | 2.0 | marginal |
| Hydrophytes | ||
| Litieres | ||
| Branchage, racines | 1.0 | marginal |
| Pierres, galets | 49.0 | dominant |
| Blocs | 6.0 | dominant |
| Granulats | 1.0 | marginal |
| Helophytes | ||
| Vases | ||
| Sables | ||
| Algues | ||
| Dalles, argiles | 41.0 | dominant |
| Microprélèvement | Substrat | Vitesse | Phase |
|---|---|---|---|
| P1 | Bryophytes | Moyenne | A |
| P2 | Branchage, racines | Nulle | A |
| P3 | Granulats | Nulle | A |
| P4 | Bryophytes | Lente | A |
| P5 | Pierres, galets | Lente | B |
| P6 | Blocs | Lente | B |
| P7 | Dalles, argiles | Lente | B |
| P8 | Pierres, galets | Moyenne | B |
| P9 | Dalles, argiles | Nulle | C |
| P10 | Pierres, galets | Nulle | C |
| P11 | Dalles, argiles | Moyenne | C |
| P12 | Pierres, galets | Lente | C |
| Taxon | Code SANDRE | A | B | C |
|---|---|---|---|---|
| Leuctra | 69 | 72 | 120 | 32 |
| Leuctra geniculata | 33830 | 1 | ||
| Protonemura | 46 | 1 | ||
| Perla | 164 | 1 | 7 | |
| Goera pilosa | 288 | 1 | ||
| Silo | 292 | 1 | 2 | 1 |
| Cheumatopsyche lepida | 222 | 1 | 30 | 10 |
| Hydropsyche | 212 | 880 | 180 | 15 |
| Hydroptila | 200 | 67 | 9 | 20 |
| Hydroptilidae | 193 | 20 | 13 | 14 |
| Athripsodes | 311 | 10 | 1 | |
| Mystacides | 312 | 1 | 1 | 2 |
| Limnephilidae | 276 | 1 | ||
| Chimarra | 207 | 2 | ||
| Cyrnus | 224 | 9 | ||
| Polycentropus | 231 | 1 | ||
| Polycentropodidae | 223 | 2 | ||
| Psychomyia pusilla | 240 | 1 | 123 | 53 |
| Rhyacophila lato-sensu | 183 | 2 | 3 | 7 |
| Baetis lato sensu | 9794 | 42 | 16 | |
| Centroptilum luteolum | 384 | 2 | ||
| Procloeon | 390 | 4 | 2 | |
| Caenis | 457 | 1 | ||
| Ephemerella ignita | 451 | 2 | ||
| Ephemera | 502 | 1 | 1 | 1 |
| Ecdyonurus | 421 | 7 | 2 | |
| Heptageniidae | 399 | 22 | 1 | |
| Habrophlebia | 491 | 2 | ||
| Leptophlebiidae | 473 | 1 | 8 | 3 |
| Micronecta | 719 | 1 | 1 | |
| Laccophilinae | 2394 | 2 | ||
| Elmis | 618 | 140 | 54 | 35 |
| Esolus | 619 | 87 | 198 | 76 |
| Normandia | 624 | 13 | 3 | |
| Oulimnius | 622 | 20 | 6 | |
| Riolus | 625 | 20 | 12 | 16 |
| Orectochilus | 515 | 5 | 5 | 2 |
| Chironomidae | 807 | 920 | 153 | 150 |
| Empididae | 831 | 5 | 5 | 5 |
| Limoniidae | 757 | 4 | 17 | 5 |
| Coenosiinae | 50792 | 1 | ||
| Pediciidae | 50011 | 3 | 7 | 2 |
| Simuliidae | 801 | 57 | 1 | 1 |
| Calopteryx | 650 | 1 | ||
| Onychogomphus | 682 | 1 | 2 | 5 |
| Gomphidae | 678 | 2 | 1 | |
| Platycnemis | 657 | 6 | ||
| Pacifastacus leniusculus | 873 | 1 | 1 | |
| Crangonyx pseudogracilis | 5117 | 51 | 7 | 38 |
| Gammarus | 892 | 443 | 16 | 8 |
| Gammaridae | 887 | 63 | 2 | 2 |
| Copepoda | 3206 | 1 | 1 | |
| Hydracarina | 906 | 1 | 1 | 1 |
| Pisidium | 1043 | 5 | ||
| Sphaeriidae | 1042 | 4 | ||
| Potamopyrgus antipodarum | 979 | 117 | 8 | |
| Hydrobiidae | 973 | 6 | ||
| Theodoxus fluviatilis | 968 | 2 | 1 | |
| Physa (sensu lato) | 997 | 43 | ||
| Physella | 19280 | 35 | ||
| Ancylus fluviatilis | 1029 | 10 | 140 | 43 |
| Planorbidae | 1009 | 4 | ||
| Oligochaeta | 933 | 13 | 16 | 48 |
| Dugesiidae | 1055 | 2 | ||
| Nematoda | 1089 | 1 |