Listes faunistiques invertébrés
Le ruisseau de Létrade à Saint-Avit 04041755
- Télécharger la fiche IRSTEA xls / 25 ko
- Export SEEE csv / 7 ko
| Date prélèvement | 02/06/2023 |
|---|---|
| Méthode | Petit cours d'eau |
| IBG | 18.0 |
| GFI | 9 |
| Variété taxonomique | 35 |
| I2M2 | 0.4999 |
| Substrat | Recouvrement (%) | Définition |
|---|---|---|
| Bryophytes | 72.0 | dominant |
| Hydrophytes | 1.0 | marginal |
| Litieres | 1.0 | marginal |
| Branchage, racines | ||
| Pierres, galets | 2.0 | marginal |
| Blocs | 1.0 | marginal |
| Granulats | ||
| Helophytes | 4.0 | marginal |
| Vases | ||
| Sables | 2.0 | marginal |
| Algues | ||
| Dalles, argiles | 17.0 | dominant |
| Microprélèvement | Substrat | Vitesse | Phase |
|---|---|---|---|
| P1 | Hydrophytes | Moyenne | A |
| P2 | Blocs | Moyenne | A |
| P3 | Litieres | Nulle | A |
| P4 | Pierres, galets | Moyenne | A |
| P5 | Bryophytes | Moyenne | B |
| P6 | Bryophytes | Lente | B |
| P7 | Bryophytes | Nulle | B |
| P8 | Dalles, argiles | Moyenne | B |
| P9 | Bryophytes | Moyenne | C |
| P10 | Bryophytes | Lente | C |
| P11 | Bryophytes | Nulle | C |
| P12 | Bryophytes | Moyenne | C |
| Taxon | Code SANDRE | A | B | C |
|---|---|---|---|---|
| Lymnaeidae | 998 | 1 | 1 | |
| Chironomidae | 807 | 1312 | 336 | 489 |
| Ceratopogonidae | 819 | 1 | ||
| Tabanidae | 837 | 3 | ||
| Pacifastacus | 872 | 2 | ||
| Asellidae | 880 | 20 | 10 | 22 |
| Gammaridae | 887 | 2 | 1 | 2 |
| Gammarus | 892 | 5 | 4 | 4 |
| Hydracarina | 906 | 2 | 3 | 4 |
| Oligochaeta | 933 | 354 | 12 | 129 |
| Hydrobiidae | 973 | 3 | ||
| Physa (sensu lato) | 997 | 39 | ||
| Simuliidae | 801 | 1953 | 712 | 1537 |
| Planorbidae | 1009 | 36 | 7 | 2 |
| Ancylus | 1028 | 20 | ||
| Sphaeriidae | 1042 | 80 | 6 | 3 |
| Pisidium | 1043 | 48 | 3 | |
| Hydrophilinae | 2517 | 2 | 2 | 4 |
| Mermithoïdea | 3159 | 1 | 1 | |
| Hemerodromiinae | 3202 | 4 | 3 | 6 |
| Physella | 19280 | 64 | 68 | |
| Hexatomini | 20358 | 1 | ||
| Pediciini | 20537 | 2 | ||
| Ephemerella ignita | 451 | 384 | 288 | |
| Protonemura | 46 | 1 | ||
| Leuctra | 69 | 320 | 8 | 144 |
| Isoperla | 140 | 6 | 18 | 23 |
| Rhyacophila lato-sensu | 183 | 5 | 11 | 24 |
| Hydropsyche | 212 | 10 | 14 | 164 |
| Polycentropodidae | 223 | 9 | 6 | 4 |
| Polycentropus | 231 | 15 | 2 | 52 |
| Baetis | 364 | 704 | 248 | 528 |
| Heptageniidae | 399 | 2 | 2 | |
| Ecdyonurus | 421 | 2 | 1 | 2 |
| Heptagenia | 443 | 2 | 1 | 1 |
| Nemoura | 26 | 1 | ||
| Caenis | 457 | 2 | ||
| Leptophlebiidae | 473 | 1 | ||
| Ephemera | 502 | 1 | ||
| Laccophilus | 553 | 1 | 3 | 2 |
| Helophorus | 604 | 1 | ||
| Dryops | 613 | 1 | ||
| Calopteryx | 650 | 1 | ||
| Corduliidae | 690 | 1 | ||
| Sialis | 704 | 1 | ||
| Psychodidae | 783 | 2 | 1 | 2 |