Listes faunistiques invertébrés
Le Varayrous à Vézins de Lévézou 05125863
- Télécharger la fiche IRSTEA xls / 646 ko
- Export SEEE csv / 10 ko
| Date prélèvement | 26/07/2018 |
|---|---|
| Méthode | Petit cours d'eau | IBG | 20.0 |
| GFI | 9 |
| Variété taxonomique | 45 |
| Taxon indicateur | Perlodidae |
| IBG |
|---|
| Etat : |
| Très bon |
| Bon |
| Moyen |
| Médiocre |
| Mauvais |
| Pas de référence |
| Substrat | Recouvrement (%) | Définition |
|---|---|---|
| Bryophytes | 8.0 | dominant |
| Hydrophytes | ||
| Litieres | 1.0 | marginal |
| Branchage, racines | 4.0 | marginal |
| Pierres, galets | 4.0 | marginal |
| Blocs | 10.0 | dominant |
| Granulats | 15.0 | dominant |
| Helophytes | 1.0 | marginal |
| Vases | 1.0 | marginal |
| Sables | 36.0 | dominant |
| Algues | ||
| Dalles, argiles | 20.0 | dominant |
| Microprélèvement | Substrat | Vitesse | Phase |
|---|---|---|---|
| P1 | Litieres | Nulle | A |
| P2 | Branchage, racines | Moyenne | A |
| P3 | Helophytes | Moyenne | A |
| P4 | Pierres, galets | Rapide | A |
| P5 | Blocs | Rapide | B |
| P6 | Granulats | Moyenne | B |
| P7 | Sables | Lente | B |
| P8 | Bryophytes | Rapide | B |
| P9 | Dalles, argiles | Rapide | C |
| P10 | Sables | Moyenne | C |
| P11 | Sables | Nulle | C |
| P12 | Dalles, argiles | Moyenne | C |
| Taxon | Code SANDRE | A | B | C |
|---|---|---|---|---|
| Leuctra | 69 | 62 | 22 | 1 |
| Protonemura | 46 | 36 | 177 | 5 |
| Nemoura | 26 | 14 | ||
| Perla | 164 | 2 | ||
| Isoperla | 140 | 2 | 2 | |
| Perlodes | 150 | 1 | 4 | 1 |
| Beraea | 328 | 1 | ||
| Micrasema | 268 | 6 | 50 | 4 |
| Silo | 292 | 2 | ||
| Silo-lithax | 5219 | 5 | 2 | |
| Goeridae | 286 | 4 | 12 | 3 |
| Hydropsyche | 212 | 14 | 107 | 10 |
| Hydropsychidae | 211 | 1 | ||
| Oecetis | 317 | 1 | ||
| Limnephilinae | 3163 | 19 | 1 | |
| Philopotamus | 209 | 3 | 3 | |
| Polycentropus | 231 | 11 | 1 | |
| Polycentropodidae | 223 | 13 | 1 | |
| Lype | 241 | 1 | ||
| Psychomyiidae | 238 | 1 | ||
| Rhyacophila lato-sensu | 183 | 6 | 13 | |
| Baetis lato sensu | 9794 | 115 | 88 | 32 |
| Caenis | 457 | 4 | 1 | 1 |
| Ephemerella ignita | 451 | 34 | 11 | 16 |
| Torleya major | 452 | 1 | ||
| Ephemera | 502 | 30 | 17 | 25 |
| Ecdyonurus | 421 | 13 | 42 | 3 |
| Electrogena | 3181 | 4 | ||
| Rhithrogena | 404 | 3 | 23 | |
| Heptageniidae | 399 | 2 | 5 | |
| Habrophlebia | 491 | 1 | ||
| Paraleptophlebia | 481 | 8 | 1 | |
| Leptophlebiidae | 473 | 54 | 5 | |
| Siphlonurus | 350 | 1 | ||
| Veliidae | 743 | 6 | 1 | |
| Colymbetinae | 2395 | 1 | ||
| Elmis | 618 | 34 | 83 | 10 |
| Esolus | 619 | 3 | 2 | |
| Limnius | 623 | 1 | 2 | |
| Oulimnius | 622 | 5 | 8 | 1 |
| Riolus | 625 | 1 | 2 | |
| Orectochilus | 515 | 1 | ||
| Helophorus | 604 | 1 | ||
| Hydraena | 608 | 1 | 5 | |
| Limnebius | 599 | 1 | ||
| Hydrochus | 606 | 1 | ||
| Hydrophilinae | 2517 | 1 | ||
| Athericidae | 838 | 1 | ||
| Chironomidae | 807 | 420 | 352 | 155 |
| Dixidae | 793 | 30 | 7 | |
| Empididae | 831 | 1 | 4 | 2 |
| Ephydridae | 844 | 3 | ||
| Limoniidae | 757 | 5 | 5 | 17 |
| Psychodidae | 783 | 2 | ||
| Ptychopteridae | 789 | 4 | 6 | |
| Simuliidae | 801 | 105 | 100 | 10 |
| Calopteryx | 650 | 7 | ||
| Cordulegaster | 687 | 1 | ||
| Sialis | 704 | 5 | ||
| Osmylus | 854 | 1 | 1 | |
| Gammarus | 892 | 7 | 2 | |
| Pacifastacus leniusculus | 873 | 10 | 4 | |
| Bivalvia | 5125 | 1 | ||
| Pisidium | 1043 | 3 | 18 | |
| Sphaeriidae | 1042 | 1 | 1 | 10 |
| Ancylus fluviatilis | 1029 | 1 | 1 | |
| Oligochaeta | 933 | 7 | 57 | 19 |
| Copepoda | 3206 | 1 | 1 | |
| Hydracarina | 906 | 1 | 1 | 1 |