Listes faunistiques invertébrés
Le ruisseau de Létrade à Saint-Avit 04041755
- Télécharger la fiche IRSTEA xls / 32 ko
- Export SEEE csv / 6 ko
| Date prélèvement | 28/06/2011 |
|---|---|
| Méthode | Petit cours d'eau | IBG | 16.0 |
| GFI | 7 |
| Variété taxonomique | 33 |
| Substrat | Recouvrement (%) | Définition |
|---|---|---|
| Bryophytes | 1.0 | marginal |
| Hydrophytes | ||
| Litieres | 3.0 | marginal |
| Branchage, racines | 1.0 | marginal |
| Pierres, galets | 20.0 | dominant |
| Blocs | 0.0 | marginal |
| Granulats | 1.0 | marginal |
| Helophytes | 12.0 | dominant |
| Vases | ||
| Sables | 20.0 | dominant |
| Algues | ||
| Dalles, argiles | 4.0 | marginal |
| Microprélèvement | Substrat | Vitesse | Phase |
|---|---|---|---|
| P1 | Litieres | Nulle | A |
| P2 | Sables | Lente | C |
| P3 | Granulats | Lente | A |
| P4 | Roches | Lente | C |
| P5 | Branchage, racines | Nulle | A |
| P6 | Roches | Nulle | C |
| P7 | Helophytes | Nulle | B |
| P8 | Sables | Nulle | B |
| P9 | Pierres, galets | Lente | B |
| P10 | Roches | Nulle | B |
| P11 | Pierres, galets | Moyenne | C |
| P12 | Bryophytes | Lente | A |
| Taxon | Code SANDRE | A | B | C |
|---|---|---|---|---|
| Leuctra | 69 | 67 | 2 | 8 |
| Nemoura | 26 | 2 | ||
| Protonemura | 46 | 1 | ||
| Hydropsyche | 212 | 23 | 1 | 52 |
| Polycentropodidae | 223 | 1 | ||
| Polycentropus | 231 | 9 | 9 | 5 |
| Rhyacophila lato-sensu | 183 | 3 | 2 | |
| Baetis | 364 | 7 | 2 | 8 |
| Ephemera | 502 | 1 | 2 | |
| Ephemerella | 450 | 21 | 11 | |
| Ecdyonurus | 421 | 1 | ||
| Electrogena | 3181 | 1 | ||
| Habrophlebia | 491 | 1 | ||
| Paraleptophlebia | 481 | 3 | 1 | |
| Gerris | 735 | 2 | 11 | |
| Hydrometra | 740 | 1 | 1 | |
| Notonecta | 730 | 1 | ||
| Dryops | 613 | 1 | ||
| Colymbetinae | 2395 | 1 | ||
| Gyrinus | 514 | 5 | 2 | |
| Orectochilus | 515 | 1 | ||
| Helophorus | 604 | 1 | 1 | |
| Hydraena | 608 | 3 | ||
| Chironomidae | 807 | 67 | 59 | 17 |
| Limoniidae | 757 | 31 | 14 | |
| Simuliidae | 801 | 1 | ||
| Tabanidae | 837 | 1 | ||
| Calopteryx | 650 | 3 | ||
| Platycnemis | 657 | 2 | ||
| Sialis | 704 | 3 | 2 | |
| Gammarus | 892 | 1 | ||
| Pacifastacus | 872 | 16 | 5 | 6 |
| Pisidium | 1043 | 12 | 2 | 4 |
| Ferrissia | 1030 | 3 | ||
| Physa (sensu lato) | 997 | 3 | ||
| Branchiobdella | 5191 | 8 | 5 | |
| Oligochaeta | 933 | 39 | 20 | 49 |
| Hydracarina | 906 | 1 | 1 | |
| Copepoda | 3206 | 1 | 1 | 1 |
| Ostracoda | 3170 | 1 | 1 |