Hannington Bridge
12 taxon records: Chub, Perch, Roach, Dace, Bleak…
Environment Agency freshwater records
River Thames
Freshwater surveys recorded 25 named fish species across 89 reviewed monitoring locations between 1993 and 2025.
Data snapshot10 August 2026Latest survey in this dataset: 2025
- Named species
- 25
- Monitoring sites
- 89
- Completed surveys
- 740
- Survey coverage
- 1993–2025
Geographic coverage
EA monitoring locations
89 of 89 locations shown
Select a point to inspect an Environment Agency monitoring location.
Positions are deliberately rounded. These are monitoring locations, not fishing access points.
Recorded diversity
Fish species recorded
Select a species to show only monitoring locations where it appears in an EA survey record.
| Species | Sites recorded | Surveys recorded | Latest observation |
|---|---|---|---|
| Rutilus rutilus | 83 | 726 | 16 Oct 2025 |
| Alburnus alburnus | 79 | 703 | 16 Oct 2025 |
| View evidence page →Esox lucius | 77 | 660 | 16 Oct 2025 |
| Leuciscus cephalus | 77 | 657 | 16 Oct 2025 |
| Perca fluviatilis | 77 | 652 | 16 Oct 2025 |
| Leuciscus leuciscus | 73 | 570 | 16 Oct 2025 |
| Gobio gobio | 61 | 393 | 16 Oct 2025 |
| Abramis brama | 60 | 429 | 14 Oct 2025 |
| Anguilla anguilla | 47 | 170 | 24 Jul 2025 |
| Tinca tinca | 46 | 274 | 16 Oct 2025 |
| Barbus barbus | 46 | 186 | 16 Oct 2025 |
| Abramis bjoerkna | 45 | 171 | 26 Sept 2025 |
| Phoxinus phoxinus | 26 | 71 | 16 Oct 2025 |
| Gymnocephalus cernuus | 24 | 83 | 24 Sept 2025 |
| Cyprinus carpio | 22 | 66 | 25 Jul 2025 |
| Cottus gobio | 19 | 63 | 16 Oct 2025 |
| Salmo trutta | 19 | 43 | 22 Jul 2025 |
| Barbatula barbatula | 17 | 50 | 16 Oct 2025 |
| Scardinius erythrophthalmus | 15 | 25 | 25 Jul 2025 |
| Gasterosteus aculeatus | 9 | 18 | 19 Oct 2016 |
| Lampetra planeri | 6 | 9 | 23 Sept 2014 |
| Sander lucioperca | 6 | 7 | 9 Jul 2025 |
| Leuciscus idus | 1 | 1 | 15 Jul 2004 |
| Thymallus thymallus | 1 | 1 | 13 Oct 2010 |
| Oncorhynchus mykiss | 1 | 1 | 11 Jul 2016 |
“Recorded” means the species appears in an EA survey record. Site and survey totals show evidence coverage, not abundance.
Latest in the snapshot
Recent surveys
Castle Eaton
12 taxon records: Perch, Roach, Chub, Dace, Pike…
Cricklade
10 taxon records: Perch, Gudgeon, Chub, Pike, Dace…
Eynsham- kings
9 taxon records: Bleak, Roach, Chub, Dace, Perch…
Species evidence
Explore River Thames species records
Dedicated pages are published only where the survey evidence passes RiverFish eligibility rules.
Reviewed identity
What these records mean
Reviewed Upper Thames, TWARP and Middle Thames survey reaches plus the Dorney juvenile survey; coordinates and WFD IDs follow the non-tidal main river.
Survey methods, effort, locations and coverage vary. Monitoring coordinates are rounded and do not indicate public access. Counts are not population trends.
Read the full methodology →