🌊 Channel
eDNA Biodiversity Report Card
6 EPT families
Moderate EPT diversity typical of chalk streams with some environmental pressures.
Top 15 families detected by eDNA analysis:
| Species | Family | Sites | ESVs |
|---|---|---|---|
| Barbatula barbatula (Stone Loach) | Nemacheilidae | 1 | 9 |
| Gasterosteus aculeatus (Three-spined Stickleback) | Gasterosteidae | 1 | 2 |
| Carassius auratus (Goldfish) | Cyprinidae | 1 | 1 |
| Species | Family | Sites | ESVs |
|---|---|---|---|
| Baetis rhodani (Large Dark Olive) | Baetidae | 1 | 2 |
| Paraleptophlebia submarginata (Turkey Brown) | Leptophlebiidae | 1 | 1 |
| Species | Family | Sites | ESVs |
|---|---|---|---|
| Leuctra fusca (Late Needle Fly) | Leuctridae | 1 | 2 |
| Species | Family | Sites | ESVs |
|---|---|---|---|
| Glyphotaelius pellucidus (Northern Caddisflies) | Limnephilidae | 1 | 5 |
| Leptocerus tineiformis (Long-horned Caddisflies) | Leptoceridae | 1 | 1 |
| Drusus annulatus (Northern Caddisflies) | Limnephilidae | 1 | 1 |
| Limnephilus extricatus (Northern Caddisflies) | Limnephilidae | 1 | 1 |
| Rhyacophila dorsalis (Free-living Caddisflies) | Rhyacophilidae | 1 | 1 |
| Site | Location | Species | Genera | EPT Families | Notes |
|---|---|---|---|---|---|
| E1B | parallel channel near source (... | 259 | 178 | 6 | 🌟 |
🌟 = Most diverse site on river
The Channel flows through the Thames & Chilterns South catchment, where our eDNA survey sampled 1 sites along its length. Analysis of water samples revealed a rich invertebrate community with 259 distinct genetic sequences (Species) representing 258 identified species and 91 families.
Compared to other chalk streams surveyed, the Channel shows moderate diversity compared to other rivers in the study (#10 of 11). The river supports 6 families of mayflies, stoneflies, and caddisflies (EPT) - key indicators of water quality.
Notable findings include the detection of conservation priority species (Water vole) and invasive species requiring management attention.
259 Species detected across 1 sites — CSV format, opens in Excel
