Inventaire invertébrés Le Retjons en aval de Rion-des- Landes
| Taxon | Code SANDRE |
|---|---|
| Mystacides | 312 |
| Limnephilidae | 276 |
| Limnephilinae | 3163 |
| Polycentropodidae | 223 |
| Polycentropus | 231 |
| Lype | 241 |
| Baetidae | 363 |
| Baetis | 364 |
| Laccophilinae | 2394 |
| Ceratopogonidae | 819 |
| Chironomidae | 807 |
| Empididae | 831 |
| Tabanidae | 837 |
| Calopteryx | 650 |
| Cordulegaster | 687 |
| Sialis | 704 |
| Gammaridae | 887 |
| Gammarus | 892 |
| Niphargidae | 5118 |
| Asellidae | 880 |
| Sphaeriidae | 1042 |
| Pisidium | 1043 |
| Ancylidae | 1027 |
| Erpobdellidae | 928 |
| Glossiphoniidae | 908 |
| Oligochaeta | 933 |
| Hydracarina | 906 |
| Copepoda | 3206 |