Birkin Brook
11 fish species have been recorded at 4 locations along the Birkin Brook.
- Fish species
- 11
- Places surveyed
- 4
- Survey visits
- 8
- Records span
- 1996–2025
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 |
|---|---|---|---|---|---|
| BullheadCottus gobio | 3 | 2018 | 67 | — | — |
| Stone loachBarbatula barbatula | 3 | 2018 | 62 | — | — |
| Brown / sea troutSalmo trutta | 3 | 2025 | 19 | Median: 33.5 cm19 fish measuredLargest measured brown / sea trout: 43 cm | — |
| 3-spined sticklebackGasterosteus aculeatus | 2 | 2018 | 43 | — | — |
| PerchPerca fluviatilis | 2 | 2007 | 7 | Median: 12.6 cm7 fish measuredLargest measured perch: 14.8 cm | — |
| Rainbow troutOncorhynchus mykiss | 2 | 2012 | 21 | Median: 37.9 cm6 fish measuredLargest measured rainbow trout: 45.5 cm | — |
| European eelAnguilla anguilla | 1 | 2025 | 18 | Median: 32.5 cm18 fish measuredLargest measured european eel: 60 cm | — |
| GudgeonGobio gobio | 1 | 2025 | 36 | Median: 8.9 cm36 fish measuredLargest measured gudgeon: 14 cm | — |
| Brook lampreyLampetra planeri | 1 | 2025 | 3 | Median: 16 cm3 fish measuredLargest measured brook lamprey: 17.5 cm | — |
| MinnowPhoxinus phoxinus | 1 | 2018 | 17 | — | — |
| RoachRutilus rutilus | 1 | 2025 | 2 | Median: 6.8 cm2 fish measuredLargest measured roach: 7.5 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 Birkin 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 →