Listes faunistiques invertébrés
Le ruisseau de Létrade à Saint-Avit 04041755
- Télécharger la fiche IRSTEA xls / 26 ko
- Export SEEE csv / 8 ko
| Date prélèvement | 21/08/2017 |
|---|---|
| Méthode | Petit cours d'eau | IBG | 17.0 |
| GFI | 7 |
| Variété taxonomique | 38 |
| Substrat | Recouvrement (%) | Définition |
|---|---|---|
| Bryophytes | 6.0 | dominant |
| Hydrophytes | 3.0 | marginal |
| Litieres | 1.0 | marginal |
| Branchage, racines | 0.0 | marginal |
| Pierres, galets | 6.0 | dominant |
| Blocs | 63.0 | dominant |
| Granulats | 1.0 | marginal |
| Helophytes | 5.0 | dominant |
| Vases | 0.0 | marginal |
| Sables | 12.0 | dominant |
| Algues | 0.0 | marginal |
| Dalles, argiles | 3.0 | marginal |
| Microprélèvement | Substrat | Vitesse | Phase |
|---|---|---|---|
| P1 | Granulats | Lente | A |
| P2 | Hydrophytes | Lente | A |
| P3 | Dalles, argiles | Lente | A |
| P4 | Litieres | Nulle | A |
| P5 | Pierres, galets | Moyenne | B |
| P6 | Blocs | Moyenne | B |
| P7 | Bryophytes | Moyenne | B |
| P8 | Helophytes | Nulle | B |
| P9 | Sables | Lente | C |
| P10 | Blocs | Lente | C |
| P11 | Blocs | Lente | C |
| P12 | Blocs | Moyenne | C |
| Taxon | Code SANDRE | A | B | C |
|---|---|---|---|---|
| Chloroperlidae | 169 | 1 | ||
| Leuctra | 69 | 6 | 17 | 14 |
| Nemoura | 26 | 3 | 2 | 1 |
| Protonemura | 46 | 1 | 1 | |
| Perlodidae | 127 | 1 | 1 | |
| Goeridae | 286 | 1 | 1 | 1 |
| Hydropsyche | 212 | 2 | 12 | 7 |
| Ithytrichia | 198 | 3 | 9 | 3 |
| Limnephilidae | 276 | 1 | ||
| Cyrnus | 224 | 1 | ||
| Polycentropus | 231 | 2 | 2 | 4 |
| Polycentropodidae | 223 | 4 | 3 | |
| Lype | 241 | 2 | ||
| Psychomyia | 239 | 1 | ||
| Tinodes | 245 | 1 | ||
| Baetis lato sensu | 9794 | 13 | 78 | 276 |
| Nigrobaetis | 32270 | 1 | 12 | 3 |
| Ephemerella ignita | 451 | 1 | 4 | 2 |
| Ephemera | 502 | 15 | 13 | 14 |
| Ecdyonurus | 421 | 2 | ||
| Heptagenia | 443 | 1 | 2 | |
| Heptageniidae | 399 | 1 | ||
| Paraleptophlebia | 481 | 10 | 8 | 20 |
| Leptophlebiidae | 473 | 88 | 102 | 172 |
| Agabus | 555 | 1 | ||
| Elmis | 618 | 1 | ||
| Hydrophilinae | 2517 | 1 | ||
| Anthomyidae | 847 | 1 | ||
| Athericidae | 838 | 1 | ||
| Ceratopogonidae | 819 | 1 | 1 | |
| Chironomidae | 807 | 520 | 1024 | 864 |
| Empididae | 831 | 42 | 112 | 48 |
| Limoniidae | 757 | 23 | 28 | 7 |
| Psychodidae | 783 | 1 | ||
| Simuliidae | 801 | 688 | 344 | 408 |
| Tabanidae | 837 | 1 | ||
| Calopteryx | 650 | 56 | 47 | 9 |
| Gomphus | 679 | 2 | 1 | |
| Platycnemis | 657 | 6 | 3 | |
| Copepoda | 3206 | 1 | ||
| Ostracoda | 3170 | 2 | ||
| Pacifastacus | 872 | 7 | 4 | 4 |
| Asellidae | 880 | 2 | 2 | |
| Pisidium | 1043 | 5 | 1 | 5 |
| Sphaeriidae | 1042 | 1 | ||
| Ferrissia | 1030 | 11 | 4 | |
| Planorbidae | 1009 | 1 | ||
| Xironogiton | 23599 | 1 | ||
| Oligochaeta | 933 | 72 | 32 | 48 |
| Mermithoïdea | 3159 | 1 | ||
| Hydracarina | 906 | 3 | ||
| Bryozoa | 1087 | 1 |