Listes faunistiques invertébrés
L'Alzou à Villefranche de Rouergue 05126060
- Télécharger la fiche IRSTEA xls / 646 ko
- Export SEEE csv / 11 ko
| Date prélèvement | 05/08/2020 |
|---|---|
| Méthode | Petit cours d'eau | IBG | 20.0 |
| GFI | 9 |
| Variété taxonomique | 44 |
| IBG |
|---|
| Etat : |
| Très bon |
| Bon |
| Moyen |
| Médiocre |
| Mauvais |
| Pas de référence |
| Substrat | Recouvrement (%) | Définition |
|---|---|---|
| Bryophytes | 1.0 | marginal |
| Hydrophytes | ||
| Litieres | ||
| Branchage, racines | 1.0 | marginal |
| Pierres, galets | 61.0 | dominant |
| Blocs | 11.0 | dominant |
| Granulats | ||
| Helophytes | ||
| Vases | ||
| Sables | 1.0 | marginal |
| Algues | 2.0 | marginal |
| Dalles, argiles | 23.0 | dominant |
| Microprélèvement | Substrat | Vitesse | Phase |
|---|---|---|---|
| P1 | Bryophytes | Lente | A |
| P2 | Branchage, racines | Nulle | A |
| P3 | Sables | Nulle | A |
| P4 | Algues | Nulle | A |
| P5 | Pierres, galets | Nulle | B |
| P6 | Blocs | Nulle | B |
| P7 | Dalles, argiles | Nulle | B |
| P8 | Pierres, galets | Lente | B |
| P9 | Pierres, galets | Moyenne | C |
| P10 | Pierres, galets | Nulle | C |
| P11 | Pierres, galets | Lente | C |
| P12 | Dalles, argiles | Lente | C |
| Taxon | Code SANDRE | A | B | C |
|---|---|---|---|---|
| Leuctra | 69 | 3 | 101 | 113 |
| Leuctra geniculata | 33830 | 17 | ||
| Protonemura | 46 | 2 | ||
| Perla | 164 | 1 | 4 | 2 |
| Taeniopteryx | 14 | 1 | ||
| Micrasema | 268 | 1 | ||
| Oligoplectrum maculatum | 264 | 3 | 1 | 158 |
| Silo | 292 | 3 | 2 | 11 |
| Silo-lithax | 5219 | 1 | ||
| Cheumatopsyche lepida | 222 | 80 | 29 | 86 |
| Hydropsyche | 212 | 184 | 72 | 274 |
| Hydroptila | 200 | 211 | 75 | 310 |
| Athripsodes | 311 | 2 | ||
| Ceraclea | 313 | 1 | ||
| Mystacides | 312 | 7 | 6 | 7 |
| Oecetis | 317 | 1 | ||
| Chimarra | 207 | 1 | 1 | |
| Cyrnus | 224 | 4 | 8 | |
| Polycentropus | 231 | 2 | 2 | 15 |
| Polycentropodidae | 223 | 1 | 1 | 1 |
| Psychomyia pusilla | 240 | 1 | 24 | 29 |
| Tinodes | 245 | 1 | ||
| Rhyacophila lato-sensu | 183 | 2 | 12 | 19 |
| Baetis lato sensu | 9794 | 10 | 4 | 10 |
| Centroptilum luteolum | 384 | 1 | ||
| Procloeon | 390 | 1 | 1 | |
| Procloeon bifidum | 391 | 1 | ||
| Caenis | 457 | 2 | 6 | |
| Ephemerella ignita | 451 | 2 | ||
| Ephemera | 502 | 1 | ||
| Ecdyonurus | 421 | 10 | 15 | |
| Heptageniidae | 399 | 33 | 27 | |
| Habroleptoides | 485 | 2 | ||
| Leptophlebiidae | 473 | 1 | 4 | |
| Hydrometra | 740 | 1 | ||
| Laccophilinae | 2394 | 11 | ||
| Elmis | 618 | 43 | 48 | 139 |
| Esolus | 619 | 36 | 170 | 196 |
| Normandia | 624 | 5 | 8 | |
| Oulimnius | 622 | 15 | 11 | |
| Riolus | 625 | 26 | 65 | |
| Orectochilus | 515 | 5 | ||
| Hydraena | 608 | 1 | 3 | |
| Hydrophilinae | 2517 | 1 | ||
| Anthomyidae | 847 | 3 | 1 | |
| Athericidae | 838 | 3 | ||
| Chironomidae | 807 | 400 | 288 | 160 |
| Empididae | 831 | 2 | 4 | |
| Limoniidae | 757 | 4 | 14 | |
| Psychodidae | 783 | 1 | ||
| Tipulidae | 753 | 1 | ||
| Calopteryx | 650 | 2 | ||
| Onychogomphus | 682 | 1 | 3 | 2 |
| Crangonyx pseudogracilis | 5117 | 16 | 2 | 7 |
| Gammarus | 892 | 80 | 18 | 70 |
| Gammaridae | 887 | 13 | ||
| Pacifastacus leniusculus | 873 | 1 | 1 | |
| Pisidium | 1043 | 1 | ||
| Sphaeriidae | 1042 | 1 | 1 | |
| Ancylus fluviatilis | 1029 | 3 | 192 | 176 |
| Potamopyrgus antipodarum | 979 | 4 | 2 | |
| Theodoxus fluviatilis | 968 | 6 | 2 | |
| Physa (sensu lato) | 997 | 1 | ||
| Planorbidae | 1009 | 2 | 1 | |
| Xironogiton | 23599 | 1 | ||
| Dugesiidae | 1055 | 2 | ||
| Oligochaeta | 933 | 12 | 11 | 10 |
| Nemathelmintha | 3111 | 1 | ||
| Copepoda | 3206 | 1 | 1 | 1 |
| Hydracarina | 906 | 1 | 1 | 1 |
| Hydrozoa | 3168 | 1 |