Listes faunistiques invertébrés
Le ruisseau de Létrade à Saint-Avit 04041755
- Télécharger la fiche IRSTEA xls / 31 ko
- Export SEEE csv / 6 ko
| Date prélèvement | 19/08/2008 |
|---|---|
| Méthode | Petit cours d'eau | IBG | 17.0 |
| GFI | 7 |
| Variété taxonomique | 37 |
| Substrat | Recouvrement (%) | Définition |
|---|---|---|
| Bryophytes | ||
| Hydrophytes | ||
| Litieres | 1.0 | marginal |
| Branchage, racines | 3.0 | marginal |
| Pierres, galets | 12.0 | dominant |
| Blocs | 30.0 | dominant |
| Granulats | ||
| Helophytes | 4.0 | marginal |
| Vases | ||
| Sables | 49.0 | dominant |
| Algues | ||
| Dalles, argiles | 1.0 | marginal |
| Microprélèvement | Substrat | Vitesse | Phase |
|---|---|---|---|
| P1 | Roches | Lente | B3 |
| P2 | Litieres | Lente | B1 |
| P3 | Sables | Lente | B3 |
| P4 | Sables | Nulle | B2 |
| P5 | Pierres, galets | Lente | B3 |
| P6 | Branchage, racines | Lente | B1 |
| P7 | Sables | Lente | B2 |
| P8 | Sables | Nulle | B3 |
| P9 | Pierres, galets | Moyenne | B2 |
| P10 | Helophytes | Lente | B1 |
| P11 | Dalles, argiles | Moyenne | B1 |
| P12 | Roches | Moyenne | B2 |
| Taxon | Code SANDRE | A | B | C |
|---|---|---|---|---|
| Leuctra | 69 | 19 | 44 | 28 |
| Nemoura | 26 | 1 | ||
| Hydropsyche | 212 | 51 | 60 | 15 |
| Stenophylacini-chaetopterygini | 3146 | 2 | ||
| Polycentropus | 231 | 5 | 2 | 1 |
| Rhyacophila lato-sensu | 183 | 1 | ||
| Notidobia | 325 | 1 | ||
| Baetis | 364 | 35 | 1 | |
| Ephemera | 502 | 9 | 4 | 1 |
| Ephemerella | 450 | 1 | ||
| Heptagenia | 443 | 1 | ||
| Leptophlebiidae | 473 | 1 | ||
| Paraleptophlebia | 481 | 3 | ||
| Aphelocheirus aestivalis | 2714 | 1 | ||
| Gerris | 735 | 3 | ||
| Hydrometra | 740 | 2 | ||
| Elmis | 618 | 1 | ||
| Orectochilus | 515 | 4 | ||
| Haliplus | 518 | 1 | ||
| Hydraena | 608 | 1 | 1 | |
| Hydrochus | 606 | 1 | ||
| Hydrophilinae | 2517 | 1 | ||
| Athericidae | 838 | 1 | 1 | |
| Chironomidae | 807 | 182 | 55 | 22 |
| Limoniidae | 757 | 3 | ||
| Simuliidae | 801 | 80 | 32 | 5 |
| Tabanidae | 837 | 1 | ||
| Tipulidae | 753 | 1 | 2 | |
| Calopteryx | 650 | 7 | ||
| Gomphus | 679 | 1 | ||
| Platycnemis | 657 | 1 | ||
| Gammarus | 892 | 1 | ||
| Pacifastacus | 872 | 3 | 2 | 2 |
| Orconectes | 870 | 1 | ||
| Pisidium | 1043 | 8 | ||
| Ancylus | 1028 | 1 | ||
| Acroloxus | 1033 | 2 | ||
| Oligochaeta | 933 | 11 | 25 | 13 |
| Hydracarina | 906 | 1 | 1 |