River Ash
16 fish species have been recorded at 13 locations along the River Ash.
- Fish species
- 16
- Places surveyed
- 13
- Survey visits
- 50
- Records span
- 2003–2025
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 |
|---|---|---|---|---|---|
| Brown / sea troutSalmo trutta | 13 | 2025 | 2,303 | Median: 19.7 cm2,303 fish measuredLargest measured brown / sea trout: 56.3 cm | — |
| BullheadCottus gobio | 13 | 2025 | 6,204 | Median: 5.5 cm956 fish measuredLargest measured bullhead: 10.1 cm | — |
| MinnowPhoxinus phoxinus | 12 | 2025 | 6,429 | Median: 5.8 cm377 fish measuredLargest measured minnow: 9.3 cm | — |
| 3-spined sticklebackGasterosteus aculeatus | 11 | 2025 | 5,065 | Median: 3.3 cm48 fish measuredLargest measured 3-spined stickleback: 5.4 cm | — |
| Stone loachBarbatula barbatula | 7 | 2025 | 894 | Median: 9.4 cm93 fish measuredLargest measured stone loach: 13.2 cm | — |
| Brook lampreyLampetra planeri | 7 | 2025 | 127 | Median: 13 cm127 fish measuredLargest measured brook lamprey: 16 cm | — |
| RoachRutilus rutilus | 5 | 2023 | 168 | Median: 13.5 cm168 fish measuredLargest measured roach: 27.1 cm | — |
| PerchPerca fluviatilis | 4 | 2023 | 239 | Median: 8.6 cm239 fish measuredLargest measured perch: 30.5 cm | — |
| PikeEsox lucius | 4 | 2019 | 35 | Median: 22.3 cm35 fish measuredLargest measured pike: 63 cm | — |
| GraylingThymallus thymallus | 4 | 2025 | 33 | Median: 13 cm33 fish measuredLargest measured grayling: 32.3 cm | — |
| ChubLeuciscus cephalus | 3 | 2023 | 214 | Median: 19.4 cm164 fish measuredLargest measured chub: 49.9 cm | — |
| DaceLeuciscus leuciscus | 2 | 2023 | 57 | Median: 16.1 cm57 fish measuredLargest measured dace: 25.2 cm | — |
| GudgeonGobio gobio | 2 | 2023 | 51 | Median: 10.9 cm51 fish measuredLargest measured gudgeon: 15.1 cm | — |
| TenchTinca tinca | 1 | 2021 | 3 | Median: 15.7 cm3 fish measuredLargest measured tench: 17.7 cm | — |
| 10-spined sticklebackPungitius pungitius | 1 | 2007 | 1 | Recorded length: 4.6 cm1 fish measured | — |
| Rainbow troutOncorhynchus mykiss | 1 | 2006 | 1 | Recorded length: 43 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 Ash. 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 →