Listes faunistiques invertébrés
Le ruisseau de Létrade à Saint-Avit 04041755
- Télécharger la fiche IRSTEA xls / 85 ko
- Export SEEE csv / 5 ko
| Date prélèvement | 08/08/2012 |
|---|---|
| Méthode | Petit cours d'eau | IBG | 15.0 |
| GFI | 7 |
| Variété taxonomique | 29 |
| Substrat | Recouvrement (%) | Définition |
|---|---|---|
| Bryophytes | 1.0 | marginal |
| Hydrophytes | 1.0 | marginal |
| Litieres | 1.0 | marginal |
| Branchage, racines | 3.0 | marginal |
| Pierres, galets | 25.0 | dominant |
| Blocs | 0.0 | marginal |
| Granulats | 1.0 | marginal |
| Helophytes | 15.0 | dominant |
| Vases | ||
| Sables | 17.0 | dominant |
| Algues | ||
| Dalles, argiles | 4.0 | marginal |
| Microprélèvement | Substrat | Vitesse | Phase |
|---|---|---|---|
| P1 | Litieres | Nulle | A |
| P2 | Sables | Nulle | B |
| P3 | Sables | Lente | C |
| P4 | Pierres, galets | Lente | B |
| P5 | Branchage, racines | Nulle | A |
| P6 | Roches | Nulle | B |
| P7 | Helophytes | Nulle | B |
| P8 | Roches | Lente | C |
| P9 | Pierres, galets | Nulle | C |
| P10 | Roches | Nulle | C |
| P11 | Hydrophytes | Lente | A |
| P12 | Bryophytes | Lente | A |
| Taxon | Code SANDRE | A | B | C |
|---|---|---|---|---|
| Leuctra | 69 | 16 | 17 | 6 |
| Silo | 292 | 1 | ||
| Hydropsyche | 212 | 38 | 51 | 17 |
| Limnephilini | 3162 | 1 | ||
| Stenophylacini-chaetopterygini | 3146 | 3 | ||
| Polycentropus | 231 | 18 | 2 | 6 |
| Psychomyia | 239 | 1 | ||
| Baetis | 364 | 3 | 22 | 13 |
| Caenis | 457 | 1 | ||
| Ephemera | 502 | 13 | 7 | 6 |
| Ephemerella | 450 | 3 | 2 | 1 |
| Ecdyonurus | 421 | 7 | 3 | |
| Heptagenia | 443 | 1 | ||
| Paraleptophlebia | 481 | 4 | 2 | |
| Gerris | 735 | 5 | ||
| Hydrometra | 740 | 1 | ||
| Oulimnius | 622 | 1 | ||
| Hydrophilinae | 2517 | 1 | ||
| Ceratopogonidae | 819 | 5 | 2 | |
| Chironomidae | 807 | 156 | 40 | 34 |
| Culicidae | 796 | 1 | ||
| Limoniidae | 757 | 9 | 75 | 27 |
| Simuliidae | 801 | 309 | 900 | 370 |
| Tabanidae | 837 | 1 | ||
| Calopteryx | 650 | 11 | 1 | |
| Asellidae | 880 | 1 | ||
| Pacifastacus | 872 | 13 | 10 | |
| Pisidium | 1043 | 1 | 1 | 1 |
| Ferrissia | 1030 | 3 | ||
| Physa (sensu lato) | 997 | 11 | ||
| Erpobdellidae | 928 | 1 | 1 | |
| Oligochaeta | 933 | 10 | 19 | 8 |
| Copepoda | 3206 | 1 | 1 | 1 |
| Ostracoda | 3170 | 1 |