Listes faunistiques invertébrés
L'Alzou à Villefranche de Rouergue 05126060
- Télécharger la fiche IRSTEA xls / 620 ko
- Export SEEE csv / 11 ko
| Date prélèvement | 25/09/2018 |
|---|---|
| Méthode | Petit cours d'eau | IBG | 19.0 |
| GFI | 9 |
| Variété taxonomique | 39 |
| Taxon indicateur | Taeniopterygidae |
| 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 | 61.0 | dominant |
| Blocs | 10.0 | dominant |
| Granulats | ||
| Helophytes | ||
| Vases | ||
| Sables | 2.0 | marginal |
| Algues | ||
| Dalles, argiles | 24.0 | 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 | Lente | B |
| P6 | Blocs | Lente | B |
| P7 | Dalles, argiles | Nulle | B |
| P8 | Pierres, galets | Nulle | B |
| P9 | Pierres, galets | Moyenne | C |
| P10 | Pierres, galets | Lente | C |
| P11 | Pierres, galets | Nulle | C |
| P12 | Dalles, argiles | Lente | C |
| Taxon | Code SANDRE | A | B | C |
|---|---|---|---|---|
| Leuctra | 69 | 7 | 16 | |
| Perla | 164 | 9 | ||
| Taeniopteryx | 14 | 3 | 2 | |
| Oligoplectrum maculatum | 264 | 1 | ||
| Goera pilosa | 288 | 1 | ||
| Silo | 292 | 1 | 1 | |
| Silo-lithax | 5219 | 1 | 4 | 3 |
| Cheumatopsyche lepida | 222 | 7 | 15 | 69 |
| Hydropsyche | 212 | 42 | 8 | 69 |
| Hydropsychidae | 211 | 12 | ||
| Hydroptila | 200 | 3 | 1 | |
| Athripsodes | 311 | 6 | 5 | 1 |
| Leptocerus | 319 | 1 | ||
| Mystacides | 312 | 15 | 4 | 7 |
| Oecetis | 317 | 22 | 5 | 3 |
| Leptoceridae | 310 | 2 | ||
| Chimarra | 207 | 8 | ||
| Cyrnus | 224 | 4 | 3 | 1 |
| Polycentropus | 231 | 1 | 2 | |
| Polycentropodidae | 223 | 1 | 2 | 5 |
| Psychomyia pusilla | 240 | 9 | 78 | 33 |
| Psychomyiidae | 238 | 6 | ||
| Rhyacophila lato-sensu | 183 | 1 | 1 | 3 |
| Baetis lato sensu | 9794 | 17 | 5 | 16 |
| Centroptilum luteolum | 384 | 3 | ||
| Cloeon | 387 | 3 | ||
| Procloeon bifidum | 391 | 1 | 1 | |
| Baetidae | 363 | 9 | 1 | 1 |
| Caenis | 457 | 11 | 6 | 10 |
| Ephemera | 502 | 2 | 1 | 1 |
| Ecdyonurus | 421 | 4 | 21 | |
| Heptageniidae | 399 | 4 | ||
| Habroleptoides | 485 | 1 | ||
| Paraleptophlebia | 481 | 1 | 2 | |
| Leptophlebiidae | 473 | 2 | 7 | 1 |
| Micronecta | 719 | 7 | 2 | |
| Colymbetinae | 2395 | 4 | ||
| Laccophilinae | 2394 | 5 | ||
| Dytiscidae | 527 | 1 | ||
| Elmis | 618 | 15 | 5 | 100 |
| Esolus | 619 | 22 | 47 | 207 |
| Limnius | 623 | 6 | ||
| Oulimnius | 622 | 6 | 7 | 6 |
| Riolus | 625 | 5 | 1 | |
| Orectochilus | 515 | 3 | 5 | 28 |
| Gyrinidae | 512 | 1 | 1 | |
| Athericidae | 838 | 19 | 2 | |
| Ceratopogonidae | 819 | 5 | ||
| Chironomidae | 807 | 358 | 224 | 72 |
| Dixidae | 793 | 1 | ||
| Empididae | 831 | 14 | 4 | 7 |
| Limoniidae | 757 | 1 | 8 | 15 |
| Simuliidae | 801 | 2 | ||
| Calopteryx | 650 | 8 | 1 | |
| Gomphus | 679 | 2 | ||
| Onychogomphus | 682 | 6 | 2 | 5 |
| Gomphidae | 678 | 1 | 3 | 6 |
| Platycnemis | 657 | 20 | 1 | |
| Gammarus | 892 | 57 | 1 | 19 |
| Pacifastacus leniusculus | 873 | 1 | ||
| Pisidium | 1043 | 35 | 1 | 1 |
| Sphaeriidae | 1042 | 19 | 1 | |
| Ancylus fluviatilis | 1029 | 6 | 15 | 25 |
| Potamopyrgus antipodarum | 979 | 6 | 2 | 1 |
| Theodoxus fluviatilis | 968 | 1 | 1 | 1 |
| Planorbidae | 1009 | 1 | ||
| Xironogiton | 23599 | 2 | ||
| Oligochaeta | 933 | 52 | 9 | 25 |
| Nematoda | 1089 | 1 | ||
| Copepoda | 3206 | 1 | 1 | 1 |
| Ostracoda | 3170 | 1 | 1 | |
| Hydracarina | 906 | 1 | 1 | 1 |
| Hydrozoa | 3168 | 1 | ||
| Bryozoa | 1087 | 1 |