River Esk
10 fish species have been recorded at 50 locations along the River Esk.
- Fish species
- 10
- Places surveyed
- 50
- Survey visits
- 187
- Records span
- 1999–2025
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 | 47 | 2025 | 15,085 | Median: 7.5 cm10,937 fish measuredLargest measured brown / sea trout: 71.8 cm | — |
| Atlantic salmonSalmo salar | 43 | 2025 | 13,446 | Median: 7.4 cm7,940 fish measuredLargest measured atlantic salmon: 19.5 cm | — |
| Stone loachBarbatula barbatula | 34 | 2025 | 2,010 | Median: 7.5 cm1,257 fish measuredLargest measured stone loach: 12.3 cm | — |
| European eelAnguilla anguilla | 24 | 2025 | 85 | Median: 24.9 cm84 fish measuredLargest measured european eel: 66.7 cm | — |
| MinnowPhoxinus phoxinus | 18 | 2025 | 398 | Median: 6.1 cm326 fish measuredLargest measured minnow: 9.3 cm | — |
| 3-spined sticklebackGasterosteus aculeatus | 5 | 2025 | 53 | Median: 2.7 cm53 fish measuredLargest measured 3-spined stickleback: 4.3 cm | — |
| Brook lampreyLampetra planeri | 4 | 2017 | 3 | Recorded length: 13 cm1 fish measuredView brook lamprey measurement → | — |
| BullheadCottus gobio | 3 | 2024 | 31 | Median: 5.7 cm31 fish measuredLargest measured bullhead: 7.3 cm | — |
| River lampreyLampetra fluviatilis | 3 | 2017 | 5 | — | — |
| GraylingThymallus thymallus | 2 | 2011 | 21 | Median: 10 cm18 fish measuredLargest measured grayling: 25.8 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 River Esk. 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 →