Listes faunistiques invertébrés
L'Alzou à Villefranche de Rouergue 05126060
- Télécharger la fiche IRSTEA xls / 117 ko
- Export SEEE csv / 10 ko
| Date prélèvement | 19/07/2017 |
|---|---|
| Méthode | Petit cours d'eau | IBG | 19.0 |
| GFI | 8 |
| Variété taxonomique | 41 |
| Taxon indicateur | Brachycentridae |
| IBG |
|---|
| Etat : |
| Très bon |
| Bon |
| Moyen |
| Médiocre |
| Mauvais |
| Pas de référence |
| Substrat | Recouvrement (%) | Définition |
|---|---|---|
| Bryophytes | 2.0 | marginal |
| Hydrophytes | 0.0 | marginal |
| Litieres | 1.0 | marginal |
| Branchage, racines | 1.0 | marginal |
| Pierres, galets | 60.0 | dominant |
| Blocs | 10.0 | dominant |
| Granulats | 1.0 | marginal |
| Helophytes | 0.0 | marginal |
| Vases | 0.0 | marginal |
| Sables | 1.0 | marginal |
| Algues | 1.0 | marginal |
| Dalles, argiles | 23.0 | dominant |
| Microprélèvement | Substrat | Vitesse | Phase |
|---|---|---|---|
| P1 | Bryophytes | Moyenne | A |
| P2 | Litieres | Nulle | A |
| P3 | Branchage, racines | Nulle | A |
| P4 | Granulats | Nulle | A |
| P5 | Pierres, galets | Lente | B |
| P6 | Blocs | Lente | B |
| P7 | Dalles, argiles | Lente | B |
| P8 | Pierres, galets | Nulle | B |
| P9 | Pierres, galets | Moyenne | C |
| P10 | Pierres, galets | Lente | C |
| P11 | Pierres, galets | Nulle | C |
| P12 | Dalles, argiles | Moyenne | C |
| Taxon | Code SANDRE | A | B | C |
|---|---|---|---|---|
| Euleuctra geniculata | 68 | 1 | 31 | 6 |
| Leuctra | 69 | 13 | 133 | 18 |
| Protonemura | 46 | 1 | 2 | |
| Perla | 164 | 2 | 7 | |
| Perlidae | 155 | 1 | ||
| Oligoplectrum maculatum | 264 | 5 | 49 | 43 |
| Agapetus | 191 | 4 | ||
| Glossosomatidae | 189 | 2 | ||
| Goera pilosa | 288 | 2 | 1 | |
| Silo | 292 | 4 | 5 | 5 |
| Goeridae | 286 | 2 | ||
| Cheumatopsyche lepida | 222 | 176 | 50 | 65 |
| Hydropsyche | 212 | 707 | 53 | 281 |
| Hydroptila | 200 | 2 | 3 | 5 |
| Hydroptilidae | 193 | 3 | 1 | 3 |
| Athripsodes | 311 | 6 | ||
| Mystacides | 312 | 72 | 2 | |
| Oecetis | 317 | 29 | 1 | 3 |
| Chimarra | 207 | 10 | 9 | |
| Cyrnus | 224 | 13 | 9 | |
| Polycentropus | 231 | 5 | 11 | 12 |
| Polycentropodidae | 223 | 4 | ||
| Psychomyia pusilla | 240 | 7 | 124 | 95 |
| Tinodes | 245 | 1 | ||
| Rhyacophila lato-sensu | 183 | 10 | 5 | |
| Baetis | 364 | 85 | 5 | 66 |
| Centroptilum | 383 | 3 | ||
| Cloeon | 387 | 1 | ||
| Caenis | 457 | 20 | 1 | 2 |
| Ephemerella ignita | 451 | 2 | 3 | |
| Ephemera | 502 | 2 | 1 | 2 |
| Ecdyonurus | 421 | 24 | 11 | |
| Electrogena | 3181 | 1 | 1 | |
| Leptophlebiidae | 473 | 4 | 3 | |
| Micronecta | 719 | 3 | ||
| Dytiscidae | 527 | 6 | ||
| Elmis | 618 | 138 | 28 | 31 |
| Esolus | 619 | 97 | 48 | 60 |
| Limnius | 623 | 1 | 2 | |
| Normandia | 624 | 1 | 1 | |
| Oulimnius | 622 | 3 | 2 | 4 |
| Riolus | 625 | 3 | 1 | |
| Hydraena | 608 | 3 | ||
| Athericidae | 838 | 13 | 5 | 1 |
| Chironomidae | 807 | 318 | 93 | 106 |
| Empididae | 831 | 5 | 1 | 4 |
| Limoniidae | 757 | 11 | 22 | 9 |
| Simuliidae | 801 | 1 | ||
| Boyeria irene | 671 | 1 | ||
| Calopteryx | 650 | 7 | ||
| Gomphus | 679 | 1 | 1 | |
| Onychogomphus | 682 | 1 | 1 | |
| Sialis | 704 | 1 | ||
| Crangonyx | 5116 | 1 | 1 | |
| Gammarus | 892 | 788 | 96 | 68 |
| Pisidium | 1043 | 9 | 1 | 1 |
| Sphaerium | 1044 | 3 | ||
| Sphaeriidae | 1042 | 7 | 1 | 5 |
| Ancylus | 1028 | 9 | 43 | 65 |
| Potamopyrgus | 978 | 23 | 2 | 4 |
| Theodoxus | 967 | 1 | 23 | 7 |
| Planorbidae | 1009 | 2 | ||
| Dugesia | 1056 | 1 | ||
| Oligochaeta | 933 | 34 | 95 | 69 |
| Nemathelmintha | 3111 | 1 | 2 | 1 |
| Hydracarina | 906 | 3 | 3 | 3 |