Listes faunistiques invertébrés
L'Alzou à Villefranche de Rouergue 05126060
- Télécharger la fiche IRSTEA xls / 45 ko
- Export SEEE csv / 10 ko
| Date prélèvement | 28/08/2014 |
|---|---|
| Méthode | Petit cours d'eau | IBG | 19.0 |
| GFI | 9 |
| Variété taxonomique | 39 |
| Taxon indicateur | Perlidae |
| 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 | 64.0 | dominant |
| Blocs | 5.0 | dominant |
| Granulats | 0.0 | marginal |
| Helophytes | 0.0 | marginal |
| Vases | 0.0 | marginal |
| Sables | 1.0 | marginal |
| Algues | 1.0 | marginal |
| Dalles, argiles | 25.0 | dominant |
| Microprélèvement | Substrat | Vitesse | Phase |
|---|---|---|---|
| P1 | Bryophytes | Moyenne | A |
| P2 | Litieres | Nulle | A |
| P3 | Branchage, racines | Nulle | A |
| P4 | Sables | Nulle | A |
| P5 | Pierres, galets | Lente | B |
| P6 | Blocs | Lente | B |
| P7 | Dalles, argiles | Moyenne | B |
| P8 | Pierres, galets | Moyenne | B |
| P9 | Pierres, galets | Nulle | C |
| P10 | Pierres, galets | Lente | C |
| P11 | Pierres, galets | Moyenne | C |
| P12 | Dalles, argiles | Lente | C |
| Taxon | Code SANDRE | A | B | C |
|---|---|---|---|---|
| Leuctra | 69 | 19 | 128 | 85 |
| Nemoura | 26 | 2 | ||
| Protonemura | 46 | 2 | ||
| Perla | 164 | 3 | 1 | |
| Micrasema | 268 | 1 | ||
| Oligoplectrum | 263 | 3 | 88 | 23 |
| Goera | 287 | 1 | ||
| Silo | 292 | 4 | 4 | |
| Cheumatopsyche | 221 | 17 | 148 | 432 |
| Hydropsyche | 212 | 21 | 116 | 354 |
| Hydroptila | 200 | 34 | 50 | 42 |
| Athripsodes | 311 | 13 | 2 | |
| Ceraclea | 313 | 2 | ||
| Mystacides | 312 | 8 | 11 | |
| Chimarra | 207 | 2 | 6 | 40 |
| Cyrnus | 224 | 1 | ||
| Polycentropus | 231 | 5 | 4 | 5 |
| Polycentropodidae | 223 | 1 | ||
| Psychomyia | 239 | 11 | 11 | |
| Rhyacophila lato-sensu | 183 | 3 | 11 | 11 |
| Baetis lato sensu | 9794 | 185 | 177 | 379 |
| Caenis | 457 | 19 | 1 | 3 |
| Ephemerella | 450 | 1 | 1 | |
| Ephemera | 502 | 7 | 1 | |
| Ecdyonurus | 421 | 3 | 12 | |
| Heptageniidae | 399 | 1 | ||
| Leptophlebiidae | 473 | 2 | 1 | |
| Micronecta | 719 | 1 | ||
| Elmis | 618 | 30 | 18 | 28 |
| Esolus | 619 | 51 | 62 | 59 |
| Limnius | 623 | 1 | ||
| Oulimnius | 622 | 6 | 4 | |
| Stenelmis | 617 | 2 | ||
| Orectochilus | 515 | 1 | 3 | |
| Hydraena | 608 | 2 | ||
| Atrichops | 840 | 16 | 12 | |
| Chironomidae | 807 | 89 | 136 | 161 |
| Clinocerinae | 9813 | 1 | 1 | |
| Hemerodromiinae | 3202 | 20 | 4 | 15 |
| Limoniini | 20393 | 4 | 9 | |
| Pediciini | 20537 | 10 | 2 | 3 |
| Limoniidae | 757 | 1 | ||
| Simuliidae | 801 | 3 | 4 | 11 |
| Calopteryx | 650 | 35 | 1 | |
| Gomphus | 679 | 1 | ||
| Onychogomphus | 682 | 3 | ||
| Gomphidae | 678 | 2 | ||
| Platycnemis | 657 | 2 | ||
| Sialis | 704 | 1 | ||
| Crangonyx | 5116 | 7 | ||
| Gammarus | 892 | 198 | 42 | 85 |
| Gammaridae | 887 | 27 | ||
| Copepoda | 3206 | 3 | ||
| Ostracoda | 3170 | 3 | ||
| Pacifastacus | 872 | 1 | ||
| Pisidium | 1043 | 283 | 1 | 64 |
| Ancylus | 1028 | 91 | 49 | 48 |
| Bithynia | 994 | 1 | ||
| Potamopyrgus | 978 | 10768 | 3 | 106 |
| Theodoxus | 967 | 9 | 6 | |
| Physella | 19280 | 14 | 1 | |
| Physidae | 995 | 7 | ||
| Oligochaeta | 933 | 9 | 11 | 57 |
| Dugesia | 1056 | 1 | 2 | |
| Hydracarina | 906 | 3 | 3 | 3 |