Listes faunistiques invertébrés
Le Gers à Montestruc-sur-Gers 05114910
- Télécharger la fiche IRSTEA xls / 619 ko
- Export SEEE csv / 7 ko
| Date prélèvement | 11/09/2023 |
|---|---|
| Méthode | Petit cours d'eau |
| IBG | 18.0 |
| GFI | 8 |
| Variété taxonomique | 37 |
| I2M2 | 0.7222 |
| Substrat | Recouvrement (%) | Définition |
|---|---|---|
| Bryophytes | ||
| Hydrophytes | ||
| Litieres | ||
| Branchage, racines | 2.0 | marginal |
| Pierres, galets | 1.0 | marginal |
| Blocs | ||
| Granulats | 97.0 | dominant |
| Helophytes | ||
| Vases | ||
| Sables | ||
| Algues | ||
| Dalles, argiles |
| Microprélèvement | Substrat | Vitesse | Phase |
|---|---|---|---|
| P1 | Branchage, racines | Moyenne | A |
| P2 | Pierres, galets | Moyenne | A |
| P3 | Branchage, racines | Lente | A |
| P4 | Pierres, galets | Rapide | A |
| P5 | Granulats | Moyenne | B |
| P6 | Granulats | Lente | B |
| P7 | Granulats | Moyenne | B |
| P8 | Granulats | Lente | B |
| P9 | Granulats | Moyenne | C |
| P10 | Granulats | Lente | C |
| P11 | Granulats | Moyenne | C |
| P12 | Granulats | Lente | C |
| Taxon | Code SANDRE | A | B | C |
|---|---|---|---|---|
| Theodoxus fluviatilis | 968 | 6 | 32 | 2 |
| Onychogomphus | 682 | 2 | 6 | |
| Limoniidae | 757 | 1 | ||
| Chironomidae | 807 | 97 | 168 | 100 |
| Empididae | 831 | 1 | ||
| Athericidae | 838 | 7 | 14 | |
| Asellidae | 880 | 1 | 1 | |
| Gammaridae | 887 | 4 | ||
| Echinogammarus | 888 | 145 | 17 | 1 |
| Hydracarina | 906 | 1 | 1 | |
| Erpobdellidae | 928 | 2 | ||
| Oligochaeta | 933 | 6 | 41 | 16 |
| Gomphidae | 678 | 5 | 3 | |
| Planorbidae | 1009 | 1 | 1 | |
| Ancylus fluviatilis | 1029 | 2 | ||
| Pisidium | 1043 | 1 | ||
| Corbicula | 1051 | 12 | 78 | 23 |
| Dugesiidae | 1055 | 4 | 2 | |
| Aphelocheirus aestivalis | 2714 | 4 | 6 | |
| Nemathelmintha | 3111 | 1 | ||
| Limnephilinae | 3163 | 1 | ||
| Zygoptera | 9785 | 5 | ||
| Baetis lato sensu | 9794 | 55 | 5 | 3 |
| Barbronia weberi | 32510 | 7 | ||
| Ephoron virgo | 497 | 3 | 1 | |
| Hydropsyche | 212 | 45 | 75 | 3 |
| Polycentropus | 231 | 2 | ||
| Psychomyia pusilla | 240 | 3 | 1 | |
| Brachycentrus | 265 | 4 | ||
| Lepidostoma hirtum | 306 | 1 | 2 | |
| Triaenodes | 314 | 3 | ||
| Oecetis | 317 | 2 | 4 | |
| Centroptilum luteolum | 384 | 2 | ||
| Heptagenia | 443 | 7 | ||
| Caenis | 457 | 1 | 12 | |
| Leptophlebiidae | 473 | 3 | ||
| Hydroptila | 200 | 5 | 5 | 2 |
| Dryops | 613 | 11 | 1 | |
| Potamophilus | 615 | 32 | 13 | 1 |
| Stenelmis | 617 | 8 | 31 | 4 |
| Elmis | 618 | 8 | ||
| Esolus | 619 | 18 | 116 | 21 |
| Oulimnius | 622 | 8 | 2 | |
| Limnius | 623 | 8 | 31 | 3 |
| Macronychus | 626 | 12 | ||
| Calopteryx | 650 | 10 | ||
| Platycnemis | 657 | 4 | ||
| Boyeria irene | 671 | 1 |