Listes faunistiques invertébrés
L'Alzou à Villefranche de Rouergue 05126060
- Télécharger la fiche IRSTEA xls / 78 ko
- Export SEEE csv / 7 ko
| Date prélèvement | 02/07/2013 |
|---|---|
| Méthode | Petit cours d'eau | IBG | 17.0 |
| GFI | 8 |
| Variété taxonomique | 33 |
| Taxon indicateur | Brachycentridae |
| Substrat | Recouvrement (%) | Définition |
|---|---|---|
| Bryophytes | 3.0 | marginal |
| Hydrophytes | ||
| Litieres | 1.0 | marginal |
| Branchage, racines | 1.0 | marginal |
| Pierres, galets | 57.0 | dominant |
| Blocs | 4.0 | marginal |
| Granulats | ||
| Helophytes | ||
| Vases | ||
| Sables | 1.0 | marginal |
| Algues | 3.0 | marginal |
| Dalles, argiles | 30.0 | dominant |
| Microprélèvement | Substrat | Vitesse | Phase |
|---|---|---|---|
| P1 | Bryophytes | Moyenne | A |
| P2 | Litieres | Nulle | A |
| P3 | Blocs | Lente | A |
| P4 | Branchage, racines | Nulle | A |
| P5 | Pierres, galets | Lente | B |
| P6 | Pierres, galets | Moyenne | B |
| P7 | Dalles, argiles | Moyenne | B |
| P8 | Dalles, argiles | Lente | B |
| P9 | Pierres, galets | Nulle | C |
| P10 | Pierres, galets | Lente | C |
| P11 | Pierres, galets | Moyenne | C |
| P12 | Dalles, argiles | Rapide | C |
| Taxon | Code SANDRE | A | B | C |
|---|---|---|---|---|
| Euleuctra geniculata | 68 | 12 | 10 | 14 |
| Leuctra | 69 | 11 | 6 | 24 |
| Protonemura | 46 | 2 | 1 | |
| Isoperla | 140 | 1 | ||
| Oligoplectrum | 263 | 2 | 1 | 3 |
| Goeridae | 286 | 1 | 3 | |
| Hydropsyche | 212 | 30 | 20 | 50 |
| Hydroptila | 200 | 1 | 6 | 2 |
| Athripsodes | 311 | 3 | 1 | |
| Mystacides | 312 | 3 | ||
| Limnephilinae | 3163 | 1 | 1 | |
| Cyrnus | 224 | 1 | ||
| Polycentropus | 231 | 3 | ||
| Polycentropodidae | 223 | 1 | ||
| Psychomyia | 239 | 2 | 47 | 8 |
| Rhyacophila lato-sensu | 183 | 2 | 5 | 11 |
| Baetis lato sensu | 9794 | 456 | 552 | 496 |
| Caenis | 457 | 69 | 1 | 5 |
| Ephemerella | 450 | 20 | 1 | 10 |
| Ephemera | 502 | 1 | ||
| Ecdyonurus | 421 | 13 | 12 | 38 |
| Epeorus | 400 | 1 | ||
| Rhithrogena | 404 | 5 | 3 | |
| Heptageniidae | 399 | 1 | 10 | 27 |
| Paraleptophlebia | 481 | 3 | ||
| Leptophlebiidae | 473 | 11 | ||
| Micronecta | 719 | 2 | ||
| Elmis | 618 | 3 | 2 | |
| Esolus | 619 | 21 | 19 | 17 |
| Blepharicera | 749 | 1 | 4 | |
| Ceratopogoninae | 822 | 4 | 1 | 4 |
| Chironomidae | 807 | 552 | 192 | 160 |
| Empididae | 831 | 1 | 6 | 4 |
| Limoniidae | 757 | 1 | 13 | 9 |
| Psychodidae | 783 | 1 | 1 | |
| Simuliidae | 801 | 19 | 30 | 124 |
| Tabanidae | 837 | 1 | ||
| Gammarus | 892 | 300 | 136 | 88 |
| Ostracoda | 3170 | 3 | ||
| Pisidium | 1043 | 22 | 1 | 1 |
| Ancylus | 1028 | 12 | 140 | 88 |
| Potamopyrgus | 978 | 1 | ||
| Oligochaeta | 933 | 30 | 40 | 23 |
| Dugesia | 1056 | 1 | ||
| Hydracarina | 906 | 3 | 3 | 3 |
| Hydra | 1077 | 3 |