River Colnebrook
17 fish species have been recorded at 8 locations along the River Colnebrook.
- Fish species
- 17
- Places surveyed
- 8
- Survey visits
- 42
- Records span
- 1986–2026
Local EA evidence
Where fish were recorded
Choose a point on the map to see what was recorded there.
Check local permissions before fishing.
River conditions
Environment Agency evidence
Fish found in this river
Open a linked fish for detailed measurements, or use the map filter above to compare survey locations.
| Fish | Sites | Most recent | Fish counted | Measured length | Measured weight |
|---|---|---|---|---|---|
| European eelAnguilla anguilla | 8 | 2026 | 223 | Median: 56 cm223 fish measuredLargest measured european eel: 93 cm | Median: 9.8 oz (0.2785 kg)16 fish weighedLargest measured: 1 lb 4.4 oz (0.579 kg) |
| PerchPerca fluviatilis | 7 | 2026 | 463 | Median: 14.6 cm463 fish measuredLargest measured perch: 31.4 cm | Median: 0.6 oz (0.017 kg)47 fish weighedLargest measured: 7.2 oz (0.205 kg) |
| RoachRutilus rutilus | 7 | 2026 | 519 | Median: 13.1 cm517 fish measuredLargest measured roach: 29.7 cm | Median: 1.4 oz (0.039 kg)12 fish weighedLargest measured: 6.2 oz (0.175 kg) |
| ChubLeuciscus cephalus | 6 | 2026 | 213 | Median: 22.1 cm213 fish measuredLargest measured chub: 52.9 cm | Median: 3.4 oz (0.095 kg)55 fish weighedLargest measured: 2 lb 4.7 oz (1.04 kg) |
| PikeEsox lucius | 6 | 2026 | 77 | Median: 36.1 cm77 fish measuredLargest measured pike: 78.5 cm | — |
| GudgeonGobio gobio | 6 | 2026 | 208 | Median: 11.1 cm208 fish measuredLargest measured gudgeon: 15.6 cm | Median: 0.6 oz (0.016 kg)100 fish weighedLargest measured: 1.9 oz (0.053 kg) |
| MinnowPhoxinus phoxinus | 6 | 2026 | 21 | Median: 5.6 cm19 fish measuredLargest measured minnow: 8.5 cm | — |
| BullheadCottus gobio | 5 | 2026 | 110 | Median: 5.6 cm42 fish measuredLargest measured bullhead: 9.5 cm | — |
| DaceLeuciscus leuciscus | 5 | 2026 | 261 | Median: 13.1 cm261 fish measuredLargest measured dace: 24.1 cm | Median: 0.7 oz (0.021 kg)125 fish weighedLargest measured: 5.5 oz (0.155 kg) |
| BarbelBarbus barbus | 5 | 2026 | 25 | Median: 55.2 cm25 fish measuredLargest measured barbel: 70 cm | Recorded weight: 6.8 oz (0.192 kg)1 fish weighed |
| Stone loachBarbatula barbatula | 5 | 2023 | 1 | Recorded length: 8.7 cm1 fish measuredView stone loach measurement → | — |
| BleakAlburnus alburnus | 4 | 2015 | 81 | Median: 9.9 cm81 fish measuredLargest measured bleak: 16.2 cm | Median: 1 oz (0.028 kg)7 fish weighedLargest measured: 1.4 oz (0.04 kg) |
| TenchTinca tinca | 4 | 2026 | 10 | Median: 26.7 cm10 fish measuredLargest measured tench: 43.5 cm | — |
| Common carpCyprinus carpio | 3 | 2010 | 3 | Median: 66 cm3 fish measuredLargest measured common carp: 69.5 cm | — |
| Common breamAbramis brama | 2 | 2010 | 8 | Median: 6.3 cm8 fish measuredLargest measured common bream: 53 cm | — |
| 3-spined sticklebackGasterosteus aculeatus | 1 | 2014 | — | — | — |
| Silver breamAbramis bjoerkna | 1 | 2010 | 1 | Recorded length: 5.2 cm1 fish measured | — |
EA surveys have recorded these fish at particular sites and times. Absence from a survey is not evidence that a species is absent from the river. Every valid individual length and weight is retained, with its sample size shown.
Useful context
This page follows survey locations along the main River Colnebrook. Tributaries and unrelated rivers with similar names are kept separate.
The map shows past fish records, not fishing access or a promise of what you’ll catch today.
How RiverFish handles the data →