Listes faunistiques invertébrés
L'Alzou à Villefranche de Rouergue 05126060
- Télécharger la fiche IRSTEA xls / 45 ko
- Export SEEE csv / 9 ko
| Date prélèvement | 09/07/2015 |
|---|---|
| Méthode | Petit cours d'eau | IBG | 18.0 |
| GFI | 8 |
| Variété taxonomique | 38 |
| Taxon indicateur | Brachycentridae |
| IBG |
|---|
| Etat : |
| Très bon |
| Bon |
| Moyen |
| Médiocre |
| Mauvais |
| Pas de référence |
| Substrat | Recouvrement (%) | Définition |
|---|---|---|
| Bryophytes | 1.0 | marginal |
| Hydrophytes | 0.0 | marginal |
| Litieres | 1.0 | marginal |
| Branchage, racines | 1.0 | marginal |
| Pierres, galets | 60.0 | dominant |
| Blocs | 6.0 | dominant |
| Granulats | 1.0 | marginal |
| Helophytes | 0.0 | marginal |
| Vases | 0.0 | marginal |
| Sables | 2.0 | marginal |
| Algues | 3.0 | marginal |
| Dalles, argiles | 25.0 | dominant |
| Microprélèvement | Substrat | Vitesse | Phase |
|---|---|---|---|
| P1 | Bryophytes | Moyenne | A |
| P2 | Litieres | Nulle | A |
| P3 | Branchage, racines | Nulle | A |
| P4 | Granulats | Moyenne | A |
| P5 | Pierres, galets | Lente | B |
| P6 | Pierres, galets | Moyenne | B |
| P7 | Blocs | Lente | B |
| P8 | Dalles, argiles | Lente | B |
| P9 | Pierres, galets | Nulle | C |
| P10 | Pierres, galets | Lente | C |
| P11 | Pierres, galets | Moyenne | C |
| P12 | Dalles, argiles | Moyenne | C |
| Taxon | Code SANDRE | A | B | C |
|---|---|---|---|---|
| Leuctra geniculata | 33830 | 9 | 2 | |
| Leuctra | 69 | 12 | 13 | 9 |
| Perla | 164 | 1 | 2 | |
| Oligoplectrum | 263 | 392 | 292 | 3939 |
| Glossosomatidae | 189 | 1 | 1 | |
| Silo | 292 | 1 | ||
| Silo-lithax | 5219 | 3 | 3 | 4 |
| Goeridae | 286 | 7 | 1 | |
| Cheumatopsyche | 221 | 16 | 8 | |
| Hydropsyche | 212 | 1283 | 72 | 155 |
| Hydroptila | 200 | 11 | 7 | |
| Athripsodes | 311 | 1 | ||
| Mystacides | 312 | 37 | 1 | 7 |
| Oecetis | 317 | 9 | 2 | |
| Chimarra | 207 | 2 | 12 | |
| Polycentropus | 231 | 1 | 24 | 4 |
| Psychomyia | 239 | 1 | 82 | 37 |
| Rhyacophila lato-sensu | 183 | 2 | 2 | |
| Baetis lato sensu | 9794 | 94 | 18 | 29 |
| Procloeon | 390 | 1 | 1 | |
| Baetidae | 363 | 1 | ||
| Ephemerella ignita | 451 | 3 | 2 | |
| Ephemera | 502 | 1 | 2 | 1 |
| Ecdyonurus | 421 | 15 | 6 | |
| Electrogena | 3181 | 8 | ||
| Rhithrogena | 404 | 1 | ||
| Heptageniidae | 399 | 1 | 9 | 24 |
| Paraleptophlebia | 481 | 3 | ||
| Leptophlebiidae | 473 | 4 | 5 | |
| Micronecta | 719 | 8 | ||
| Colymbetinae | 2395 | 2 | ||
| Elmis | 618 | 52 | 1 | 1 |
| Esolus | 619 | 38 | 16 | 16 |
| Limnius | 623 | 1 | ||
| Oulimnius | 622 | 1 | ||
| Riolus | 625 | 3 | ||
| Atrichops | 840 | 4 | ||
| Athericidae | 838 | 1 | ||
| Ceratopogoninae | 822 | 1 | ||
| Chironomidae | 807 | 672 | 92 | 5 |
| Empididae | 831 | 5 | ||
| Limoniidae | 757 | 9 | 4 | 5 |
| Simuliidae | 801 | 21 | ||
| Tabanidae | 837 | 1 | 2 | |
| Calopteryx | 650 | 1 | ||
| Gomphus | 679 | 1 | ||
| Crangonyx | 5116 | 1 | 6 | |
| Gammarus | 892 | 581 | 11 | 19 |
| Copepoda | 3206 | 3 | 3 | |
| Pacifastacus | 872 | 1 | ||
| Pisidium | 1043 | 34 | 13 | 44 |
| Ancylus | 1028 | 1 | 23 | 112 |
| Potamopyrgus | 978 | 16 | 2 | |
| Lymnaeidae | 998 | 1 | ||
| Theodoxus | 967 | 1 | 6 | 34 |
| Physella | 19280 | 2 | ||
| Physidae | 995 | 2 | ||
| Oligochaeta | 933 | 3 | 50 | 5 |
| Hydracarina | 906 | 3 | 3 | 3 |