Listes faunistiques invertébrés
Le Litroux à Ravel 04033050
- Télécharger la fiche IRSTEA xls / 31 ko
- Export SEEE csv / 4 ko
| Date prélèvement | 27/05/2011 |
|---|---|
| Méthode | Petit cours d'eau |
| IBG | 14.0 |
| GFI | 7 |
| Variété taxonomique | 25 |
| I2M2 | 0.2407 |
| Substrat | Recouvrement (%) | Définition |
|---|---|---|
| Bryophytes | ||
| Hydrophytes | ||
| Litieres | 1.0 | marginal |
| Branchage, racines | 2.0 | marginal |
| Pierres, galets | ||
| Blocs | 0.0 | marginal |
| Granulats | 36.0 | dominant |
| Helophytes | ||
| Vases | ||
| Sables | 60.0 | dominant |
| Algues | ||
| Dalles, argiles | 1.0 | marginal |
| Microprélèvement | Substrat | Vitesse | Phase |
|---|---|---|---|
| P1 | Sables | Lente | B |
| P2 | Sables | Nulle | C |
| P3 | Branchage, racines | Nulle | A |
| P4 | Branchage, racines | Lente | A |
| P5 | Dalles, argiles | Lente | A |
| P6 | Granulats | Nulle | B |
| P7 | Sables | Lente | C |
| P8 | Litieres | Nulle | A |
| P9 | Granulats | Lente | C |
| P10 | Granulats | Lente | B |
| P11 | Sables | Nulle | B |
| P12 | Sables | Lente | C |
| Taxon | Code SANDRE | A | B | C |
|---|---|---|---|---|
| Veliidae | 743 | 15 | 5 | 2 |
| Ostracoda | 3170 | 1 | ||
| Stenophylacini-chaetopterygini | 3146 | 2 | 1 | |
| Colymbetinae | 2395 | 2 | ||
| Radix | 1004 | 1 | ||
| Potamopyrgus | 978 | 3 | 3 | 1 |
| Oligochaeta | 933 | 8 | 6 | 6 |
| Hydracarina | 906 | 1 | ||
| Gammarus | 892 | 660 | 200 | 50 |
| Asellidae | 880 | 113 | 1 | |
| Tabanidae | 837 | 7 | 3 | |
| Ceratopogonidae | 819 | 8 | 2 | 3 |
| Chironomidae | 807 | 37 | 12 | 50 |
| Limoniidae | 757 | 10 | 14 | |
| Tipulidae | 753 | 2 | ||
| Hydropsyche | 212 | 2 | ||
| Hydrometra | 740 | 4 | ||
| Gerris | 735 | 2 | ||
| Sialis | 704 | 1 | ||
| Cordulegaster | 687 | 2 | ||
| Calopteryx | 650 | 5 | ||
| Limnius | 623 | 1 | 1 | |
| Elmis | 618 | 13 | 6 | 1 |
| Pomatinus | 611 | 2 | 1 | |
| Hydraena | 608 | 1 | 1 | |
| Ephemera | 502 | 5 | 1 | 1 |
| Habrophlebia | 491 | 8 | ||
| Ephemerella | 450 | 22 | 17 | 31 |
| Baetis | 364 | 3 | 9 |