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 | 29/07/2016 |
|---|---|
| Méthode | Petit cours d'eau |
| IBG | 15.0 |
| GFI | 7 |
| Variété taxonomique | 29 |
| I2M2 | 0.6035 |
| Substrat | Recouvrement (%) | Définition |
|---|---|---|
| Bryophytes | 1.0 | marginal |
| Hydrophytes | 1.0 | marginal |
| Litieres | 1.0 | marginal |
| Branchage, racines | 3.0 | marginal |
| Pierres, galets | 32.0 | dominant |
| Blocs | 29.0 | dominant |
| Granulats | 1.0 | marginal |
| Helophytes | 14.0 | dominant |
| Vases | ||
| Sables | 14.0 | dominant |
| Algues | ||
| Dalles, argiles | 4.0 | marginal |
| Microprélèvement | Substrat | Vitesse | Phase |
|---|---|---|---|
| P1 | Sables | Lente | B |
| P2 | Pierres, galets | Moyenne | B |
| P3 | Branchage, racines | Lente | A |
| P4 | Litieres | Nulle | A |
| P5 | Blocs | Nulle | C |
| P6 | Helophytes | Lente | B |
| P7 | Blocs | Lente | C |
| P8 | Bryophytes | Moyenne | A |
| P9 | Pierres, galets | Lente | C |
| P10 | Blocs | Moyenne | B |
| P11 | Pierres, galets | Nulle | C |
| P12 | Hydrophytes | Lente | A |
| Taxon | Code SANDRE | A | B | C |
|---|---|---|---|---|
| Ferrissia | 1030 | 18 | 1 | |
| Chironomidae | 807 | 80 | 42 | 16 |
| Ceratopogonidae | 819 | 1 | 4 | |
| Tabanidae | 837 | 1 | 1 | |
| Pacifastacus | 872 | 7 | 4 | 6 |
| Asellidae | 880 | 2 | 1 | |
| Hydracarina | 906 | 1 | 1 | |
| Oligochaeta | 933 | 18 | 20 | 16 |
| Physa (sensu lato) | 997 | 3 | 1 | 1 |
| Simuliidae | 801 | 74 | 24 | 16 |
| Pisidium | 1043 | 6 | 1 | |
| Colymbetinae | 2395 | 1 | 2 | |
| Hydrophilinae | 2517 | 2 | 2 | |
| Branchiobdellidae | 3132 | 1 | ||
| Stenophylacini-chaetopterygini | 3146 | 1 | 1 | |
| Ostracoda | 3170 | 1 | ||
| Copepoda | 3206 | 1 | 1 | 1 |
| Leuctra | 69 | 27 | 34 | 5 |
| Limoniidae | 757 | 19 | 28 | 15 |
| Gerris | 735 | 15 | ||
| Calopteryx | 650 | 5 | 5 | |
| Hydraena | 608 | 1 | ||
| Ephemera | 502 | 3 | 1 | 10 |
| Paraleptophlebia | 481 | 6 | 2 | 3 |
| Caenis | 457 | 1 | ||
| Ephemerella | 450 | 3 | ||
| Ecdyonurus | 421 | 11 | ||
| Baetis | 364 | 6 | 20 | 3 |
| Notidobia | 325 | 1 | ||
| Silo | 292 | 1 | ||
| Lype | 241 | 1 | ||
| Polycentropus | 231 | 38 | 30 | 24 |
| Hydropsyche | 212 | 46 | 58 | 2 |