Listes faunistiques invertébrés
le ruisseau de Malaval à Alleyras 04027295
- Télécharger la fiche IRSTEA xls / 36 ko
- Export SEEE csv / 7 ko
| Date prélèvement | 25/08/2020 |
|---|---|
| Méthode | Petit cours d'eau |
| IBG | 18.0 |
| GFI | 9 |
| Variété taxonomique | 36 |
| I2M2 | 0.7911 |
| Substrat | Recouvrement (%) | Définition |
|---|---|---|
| Bryophytes | 2.0 | marginal |
| Hydrophytes | ||
| Litieres | 1.0 | marginal |
| Branchage, racines | 1.0 | marginal |
| Pierres, galets | 29.0 | dominant |
| Blocs | 8.0 | dominant |
| Granulats | 36.0 | dominant |
| Helophytes | ||
| Vases | ||
| Sables | 3.0 | marginal |
| Algues | ||
| Dalles, argiles | 20.0 | dominant |
| Microprélèvement | Substrat | Vitesse | Phase |
|---|---|---|---|
| P1 | Bryophytes | Moyenne | A |
| P2 | Litieres | Nulle | A |
| P3 | Branchage, racines | Nulle | A |
| P4 | Sables | Nulle | A |
| P5 | Pierres, galets | Moyenne | B |
| P6 | Blocs | Moyenne | B |
| P7 | Granulats | Lente | B |
| P8 | Dalles, argiles | Moyenne | B |
| P9 | Pierres, galets | Lente | C |
| P10 | Granulats | Moyenne | C |
| P11 | Granulats | Nulle | C |
| P12 | Dalles, argiles | Lente | C |
| Taxon | Code SANDRE | A | B | C |
|---|---|---|---|---|
| Athericidae | 838 | 18 | 15 | |
| Baetis lato sensu | 9794 | 23 | 82 | 51 |
| Ceratopogonidae | 819 | 1 | 4 | |
| Chironomidae | 807 | 40 | 97 | 116 |
| Cordulegaster | 687 | 2 | 2 | |
| Dinocras | 156 | 1 | 14 | |
| Dixidae | 793 | 2 | ||
| Drusinae | 3120 | 1 | 2 | |
| Dupophilus | 620 | 8 | 16 | |
| Ecdyonurus | 421 | 2 | 8 | |
| Elmis | 618 | 13 | 16 | 4 |
| Empididae | 831 | 3 | 8 | 17 |
| Epeorus | 400 | 1 | 34 | 1 |
| Ephemera | 502 | 9 | 4 | 1 |
| Ephemerella ignita | 451 | 1 | 5 | |
| Erpobdellidae | 928 | 1 | 2 | |
| Esolus | 619 | 24 | 16 | |
| Gammarus | 892 | 541 | 125 | 685 |
| Glossosoma | 190 | 4 | ||
| Habroleptoides | 485 | 1 | ||
| Hydracarina | 906 | 1 | ||
| Hydraena | 608 | 8 | 38 | 2 |
| Hydrocyphon | 637 | 2 | ||
| Hydropsyche | 212 | 2 | 42 | |
| Isoperla | 140 | 1 | 1 | |
| Leptophlebiidae | 473 | 3 | 2 | |
| Leuctra | 69 | 10 | 329 | 84 |
| Limnephilinae | 3163 | 11 | 2 | |
| Limnius | 623 | 2 | 112 | 81 |
| Limoniidae | 757 | 1 | 9 | 8 |
| Micrasema | 268 | 84 | ||
| Nemoura | 26 | 6 | 4 | 14 |
| Odontocerum | 339 | 23 | 21 | 29 |
| Oligochaeta | 933 | 2 | 128 | 47 |
| Perla | 164 | 5 | ||
| Perlodes | 150 | 3 | ||
| Philopotamus | 209 | 2 | 99 | 4 |
| Pisidium | 1043 | 1 | ||
| Polycelis | 1064 | 7 | 16 | |
| Protonemura | 46 | 80 | 76 | 4 |
| Psychodidae | 783 | 3 | 1 | |
| Psychomyia | 239 | 4 | ||
| Rhithrogena | 404 | 1 | 40 | |
| Rhyacophila lato-sensu | 183 | 7 | 16 | 2 |
| Sericostoma | 322 | 3 | 7 | |
| Simuliidae | 801 | 18 | 15 | |
| Tipulidae | 753 | 2 |