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 | 22/07/2013 |
|---|---|
| Méthode | Petit cours d'eau | IBG | 15.0 |
| GFI | 7 |
| Variété taxonomique | 31 |
| 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 | 0.0 | marginal |
| Granulats | 1.0 | marginal |
| Helophytes | 14.0 | dominant |
| Vases | ||
| Sables | 14.0 | dominant |
| Algues | ||
| Dalles, argiles | 4.0 | marginal |
| Microprélèvement | Substrat | Vitesse | Phase |
|---|---|---|---|
| P1 | Branchage, racines | Nulle | A |
| P2 | Sables | Nulle | B |
| P3 | Litieres | Nulle | A |
| P4 | Bryophytes | Lente | A |
| P5 | Pierres, galets | Lente | C |
| P6 | Blocs | Lente | B |
| P7 | Blocs | Nulle | C |
| P8 | Helophytes | Lente | B |
| P9 | Blocs | Moyenne | C |
| P10 | Pierres, galets | Nulle | C |
| P11 | Pierres, galets | Moyenne | B |
| P12 | Hydrophytes | Moyenne | A |
| Taxon | Code SANDRE | A | B | C |
|---|---|---|---|---|
| Leuctra | 69 | 75 | 43 | 16 |
| Protonemura | 46 | 1 | ||
| Hydropsyche | 212 | 71 | 108 | 17 |
| Ithytrichia | 198 | 1 | 1 | |
| Mystacides | 312 | 1 | ||
| Stenophylacini-chaetopterygini | 3146 | 5 | 3 | |
| Polycentropodidae | 223 | 13 | ||
| Polycentropus | 231 | 47 | 7 | 5 |
| Lype | 241 | 1 | ||
| Rhyacophila lato-sensu | 183 | 1 | 12 | 2 |
| Baetis | 364 | 11 | 21 | 4 |
| Ephemera | 502 | 14 | 6 | 6 |
| Ephemerella | 450 | 38 | 13 | 6 |
| Ecdyonurus | 421 | 1 | 1 | |
| Paraleptophlebia | 481 | 2 | 2 | 2 |
| Hydrometra | 740 | 1 | ||
| Hydraena | 608 | 1 | ||
| Anthomyidae | 847 | 1 | ||
| Ceratopogonidae | 819 | 1 | 1 | |
| Chironomidae | 807 | 134 | 34 | 34 |
| Empididae | 831 | 1 | ||
| Limoniidae | 757 | 47 | 26 | 14 |
| Simuliidae | 801 | 28 | 70 | 21 |
| Tabanidae | 837 | 1 | ||
| Calopteryx | 650 | 5 | ||
| Sialis | 704 | 1 | 1 | |
| Gammarus | 892 | 4 | ||
| Pacifastacus | 872 | 5 | 2 | 1 |
| Pisidium | 1043 | 15 | 3 | |
| Ancylus | 1028 | 3 | ||
| Ferrissia | 1030 | 4 | 5 | |
| Planorbidae | 1009 | 1 | ||
| Oligochaeta | 933 | 8 | 12 | 26 |
| Hydracarina | 906 | 1 | ||
| Copepoda | 3206 | 1 |