Listes faunistiques invertébrés
L'Alzou à Villefranche de Rouergue 05126060
- Télécharger la fiche IRSTEA xls / 619 ko
- Export SEEE csv / 12 ko
| Date prélèvement | 06/09/2022 |
|---|---|
| Méthode | Petit cours d'eau | IBG | 18.0 |
| GFI | 7 |
| Variété taxonomique | 42 |
| IBG |
|---|
| Etat : |
| Très bon |
| Bon |
| Moyen |
| Médiocre |
| Mauvais |
| Pas de référence |
| Substrat | Recouvrement (%) | Définition |
|---|---|---|
| Bryophytes | ||
| Hydrophytes | ||
| Litieres | ||
| Branchage, racines | 1.0 | marginal |
| Pierres, galets | 58.0 | dominant |
| Blocs | 6.0 | dominant |
| Granulats | 2.0 | marginal |
| Helophytes | ||
| Vases | ||
| Sables | ||
| Algues | 3.0 | marginal |
| Dalles, argiles | 30.0 | dominant |
| Microprélèvement | Substrat | Vitesse | Phase |
|---|---|---|---|
| P1 | Branchage, racines | Nulle | A |
| P2 | Granulats | Nulle | A |
| P3 | Algues | Nulle | A |
| P4 | Vases | Nulle | A |
| P5 | Pierres, galets | Nulle | B |
| P6 | Blocs | Nulle | B |
| P7 | Dalles, argiles | Nulle | B |
| P8 | Pierres, galets | Lente | B |
| P9 | Vases | Nulle | C |
| P10 | Pierres, galets | Lente | C |
| P11 | Dalles, argiles | Lente | C |
| P12 | Pierres, galets | Nulle | C |
| Taxon | Code SANDRE | A | B | C |
|---|---|---|---|---|
| Leuctra | 69 | 11 | 56 | |
| Brachycentridae | 262 | 1 | ||
| Glossosoma | 190 | 1 | ||
| Goera pilosa | 288 | 3 | ||
| Silo | 292 | 11 | 20 | |
| Silo-lithax | 5219 | 2 | ||
| Cheumatopsyche lepida | 222 | 5 | 18 | |
| Hydropsyche | 212 | 4 | 24 | |
| Hydroptila | 200 | 7 | 12 | |
| Hydroptilidae | 193 | 1 | 15 | 4 |
| Athripsodes | 311 | 6 | 2 | 2 |
| Oecetis | 317 | 1 | 1 | |
| Limnephilinae | 3163 | 1 | ||
| Cyrnus | 224 | 9 | 2 | |
| Polycentropus | 231 | 3 | 1 | |
| Polycentropodidae | 223 | 1 | 3 | 3 |
| Psychomyia pusilla | 240 | 17 | 6 | |
| Rhyacophila lato-sensu | 183 | 17 | 3 | |
| Centroptilum luteolum | 384 | 2 | 3 | 3 |
| Cloeon | 387 | 1 | 2 | |
| Procloeon | 390 | 16 | 1 | |
| Procloeon bifidum | 391 | 2 | ||
| Baetidae | 363 | 2 | 3 | |
| Caenis | 457 | 11 | 16 | 29 |
| Ephemera | 502 | 4 | ||
| Ecdyonurus | 421 | 1 | ||
| Heptageniidae | 399 | 2 | ||
| Paraleptophlebia | 481 | 5 | 3 | |
| Leptophlebiidae | 473 | 3 | 6 | |
| Micronecta | 719 | 6 | 67 | 6 |
| Dryops | 613 | 1 | ||
| Pomatinus substriatus | 33844 | 2 | 6 | |
| Laccophilinae | 2394 | 3 | ||
| Elmis | 618 | 1 | 80 | 75 |
| Esolus | 619 | 22 | 903 | 690 |
| Normandia | 624 | 1 | 30 | |
| Oulimnius | 622 | 8 | ||
| Riolus | 625 | 1 | 15 | |
| Orectochilus | 515 | 4 | 4 | |
| Hydraena | 608 | 2 | 3 | |
| Hydrophilinae | 2517 | 1 | ||
| Athericidae | 838 | 3 | 1 | |
| Ceratopogonidae | 819 | 2 | ||
| Chironomidae | 807 | 134 | 330 | 153 |
| Empididae | 831 | 4 | ||
| Limoniidae | 757 | 1 | ||
| Pediciidae | 50011 | 1 | 6 | |
| Simuliidae | 801 | 1 | 1 | 11 |
| Tabanidae | 837 | 4 | ||
| Tipulidae | 753 | 3 | 3 | |
| Zygoptera | 9785 | 2 | ||
| Calopteryx | 650 | 5 | 1 | |
| Gomphus | 679 | 1 | ||
| Onychogomphus | 682 | 3 | 4 | 5 |
| Gomphidae | 678 | 9 | 4 | |
| Platycnemis | 657 | 15 | ||
| Pacifastacus leniusculus | 873 | 1 | ||
| Crangonyx pseudogracilis | 5117 | 9 | 7 | 19 |
| Gammarus | 892 | 3 | 1 | |
| Gammaridae | 887 | 2 | 1 | |
| Argulus | 2969 | 1 | 1 | |
| Cladocera | 3127 | 1 | 1 | 1 |
| Copepoda | 3206 | 1 | 1 | 1 |
| Ostracoda | 3170 | 1 | 1 | |
| Hydracarina | 906 | 1 | 1 | 1 |
| Pisidium | 1043 | 8 | 1 | 1 |
| Potamopyrgus antipodarum | 979 | 37 | 1 | |
| Hydrobiidae | 973 | 25 | 2 | |
| Theodoxus fluviatilis | 968 | 20 | 13 | |
| Physa (sensu lato) | 997 | 106 | 5 | 2 |
| Physella | 19280 | 37 | 1 | |
| Physidae | 995 | 14 | 7 | 2 |
| Ancylus fluviatilis | 1029 | 2 | 31 | 24 |
| Planorbidae | 1009 | 1 | ||
| Erpobdellidae | 928 | 1 | ||
| Oligochaeta | 933 | 44 | 447 | 260 |
| Dugesiidae | 1055 | 2 | 2 | |
| Prostoma | 3110 | 1 | ||
| Hydrozoa | 3168 | 2 | 2 | |
| Bryozoa | 1087 | 1 |