River Derwent
24 fish species have been recorded at 35 locations along the River Derwent.
Records updated10 August 2026Most recent survey: 2025
- Fish species
- 24
- Places surveyed
- 35
- Survey visits
- 144
- Records span
- 1993–2025
Local EA evidence
Where fish were recorded
35 of 35 places shown
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 | 22 | 2025 | 1,380 | Median: 19.1 cm1,371 fish measuredLargest measured brown / sea trout: 54.2 cm | Recorded weight: 9.4 oz (0.266 kg)1 fish weighed |
| BullheadCottus gobio | 22 | 2024 | 793 | Median: 5 cm449 fish measuredLargest measured bullhead: 10.6 cm | — |
| MinnowPhoxinus phoxinus | 21 | 2025 | 10,156 | Median: 3.5 cm671 fish measuredLargest measured minnow: 9.1 cm | — |
| GraylingThymallus thymallus | 20 | 2025 | 911 | Median: 23.8 cm909 fish measuredLargest measured grayling: 38.9 cm | Median: 4.8 oz (0.135 kg)2 fish weighedLargest measured: 4.9 oz (0.14 kg) |
| ChubLeuciscus cephalus | 17 | 2025 | 1,838 | Median: 11.8 cm1,787 fish measuredLargest measured chub: 52.6 cm | Median: 2 lb 4.7 oz (1.04 kg)13 fish weighedLargest measured: 3 lb 12 oz (1.7 kg) |
| Stone loachBarbatula barbatula | 17 | 2025 | 239 | Median: 5.8 cm204 fish measuredLargest measured stone loach: 11.6 cm | — |
| PerchPerca fluviatilis | 14 | 2025 | 338 | Median: 20.5 cm338 fish measuredLargest measured perch: 43.3 cm | Median: 1 lb 10.6 oz (0.755 kg)4 fish weighedLargest measured: 4 lb 1.4 oz (1.86 kg) |
| DaceLeuciscus leuciscus | 14 | 2025 | 933 | Median: 11.9 cm894 fish measuredLargest measured dace: 23.7 cm | — |
| BarbelBarbus barbus | 13 | 2025 | 317 | Median: 21.1 cm317 fish measuredLargest measured barbel: 75 cm | Median: 5 lb 7.7 oz (2.49 kg)8 fish weighedLargest measured: 12 lb 3.2 oz (5.53 kg) |
| GudgeonGobio gobio | 12 | 2025 | 997 | Median: 10.9 cm856 fish measuredLargest measured gudgeon: 18.5 cm | — |
| RoachRutilus rutilus | 10 | 2017 | 2,224 | Median: 12.4 cm2,214 fish measuredLargest measured roach: 32.5 cm | Recorded weight: 8.5 oz (0.24 kg)1 fish weighed |
| PikeEsox lucius | 10 | 2018 | 53 | Median: 67.4 cm53 fish measuredLargest measured pike: 89.4 cm | Recorded weight: 2 lb 0.1 oz (0.91 kg)1 fish weighed |
| Brook lampreyLampetra planeri | 10 | 2018 | 178 | Median: 15.1 cm64 fish measuredLargest measured brook lamprey: 19.5 cm | — |
| 3-spined sticklebackGasterosteus aculeatus | 9 | 2024 | 353 | Median: 3.6 cm190 fish measuredLargest measured 3-spined stickleback: 5.5 cm | — |
| BleakAlburnus alburnus | 6 | 2025 | 749 | Median: 11.5 cm749 fish measuredLargest measured bleak: 16.6 cm | — |
| Common breamAbramis brama | 6 | 2009 | 61 | Median: 41.8 cm61 fish measuredLargest measured common bream: 55.2 cm | — |
| Rainbow troutOncorhynchus mykiss | 5 | 2018 | 94 | Median: 36 cm94 fish measuredLargest measured rainbow trout: 52 cm | — |
| Atlantic salmonSalmo salar | 4 | 2025 | 79 | Median: 9.9 cm78 fish measuredLargest measured atlantic salmon: 15.4 cm | — |
| TenchTinca tinca | 4 | 2012 | 6 | Median: 34.4 cm6 fish measuredLargest measured tench: 44.5 cm | — |
| RuffeGymnocephalus cernuus | 3 | 2018 | 7 | Median: 10.8 cm7 fish measuredLargest measured ruffe: 15 cm | — |
| European eelAnguilla anguilla | 3 | 2017 | 4 | Median: 71.4 cm4 fish measuredLargest measured european eel: 78 cm | — |
| Spined loachCobitis taenia | 3 | 2012 | 19 | Median: 5.4 cm19 fish measuredLargest measured spined loach: 7.8 cm | — |
| Silver breamAbramis bjoerkna | 2 | 2009 | 12 | Median: 15.1 cm12 fish measuredLargest measured silver bream: 21.4 cm | — |
| RuddScardinius erythrophthalmus | 2 | 2007 | 2 | Median: 12.5 cm2 fish measuredLargest measured rudd: 15.5 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 River Derwent. 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 →