Willow Brook
17 fish species have been recorded at 12 locations along the Willow Brook.
- Fish species
- 17
- Places surveyed
- 12
- Survey visits
- 54
- Records span
- 1989–2018
Local EA evidence
Where fish were recorded
Choose a point on the map to see what was recorded there.
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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 |
|---|---|---|---|---|---|
| ChubLeuciscus cephalus | 11 | 2018 | 1,389 | Median: 25 cm1,286 fish measuredLargest measured chub: 50.5 cm | — |
| RoachRutilus rutilus | 10 | 2018 | 4,065 | Median: 15 cm3,942 fish measuredLargest measured roach: 39.5 cm | — |
| GudgeonGobio gobio | 10 | 2018 | 2,263 | Median: 12 cm1,782 fish measuredLargest measured gudgeon: 18 cm | — |
| PerchPerca fluviatilis | 10 | 2018 | 277 | Median: 16 cm277 fish measuredLargest measured perch: 39.7 cm | — |
| BullheadCottus gobio | 9 | 2018 | 23 | Median: 7 cm23 fish measuredLargest measured bullhead: 11 cm | — |
| European eelAnguilla anguilla | 8 | 2018 | 218 | Median: 62 cm25 fish measuredLargest measured european eel: 83 cm | — |
| DaceLeuciscus leuciscus | 8 | 2018 | 242 | Median: 16.3 cm242 fish measuredLargest measured dace: 26 cm | — |
| Stone loachBarbatula barbatula | 7 | 2018 | 85 | Median: 8.5 cm85 fish measuredLargest measured stone loach: 12.5 cm | — |
| 3-spined sticklebackGasterosteus aculeatus | 7 | 2018 | 28 | Median: 5.5 cm28 fish measuredLargest measured 3-spined stickleback: 7 cm | — |
| MinnowPhoxinus phoxinus | 6 | 2018 | — | — | — |
| Brown / sea troutSalmo trutta | 5 | 2018 | 92 | Median: 21.7 cm92 fish measuredLargest measured brown / sea trout: 56.5 cm | — |
| PikeEsox lucius | 4 | 2015 | 14 | Median: 32.1 cm14 fish measuredLargest measured pike: 73.2 cm | — |
| Common carpCyprinus carpio | 3 | 2012 | 54 | Median: 28 cm54 fish measuredLargest measured common carp: 37.5 cm | — |
| RuddScardinius erythrophthalmus | 3 | 1995 | 34 | Median: 16 cm34 fish measuredLargest measured rudd: 37 cm | — |
| Crucian carpCarassius carassius | 3 | 1992 | 5 | Median: 20 cm5 fish measuredLargest measured crucian carp: 24.5 cm | — |
| TenchTinca tinca | 2 | 2018 | 8 | Median: 20.6 cm8 fish measuredLargest measured tench: 38 cm | — |
| Rainbow troutOncorhynchus mykiss | 1 | 1998 | 16 | Median: 35.3 cm16 fish measuredLargest measured rainbow trout: 38 cm | — |
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 Willow Brook. 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 →