River Derwent (Yorkshire)
27 fish species have been recorded at 24 locations along the River Derwent (Yorkshire).
- Fish species
- 27
- Places surveyed
- 24
- Survey visits
- 252
- Records span
- 1984–2025
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 |
|---|---|---|---|---|---|
| MinnowPhoxinus phoxinus | 21 | 2025 | 16,785 | Median: 3.2 cm4,974 fish measuredLargest measured minnow: 10.6 cm | — |
| BullheadCottus gobio | 21 | 2025 | 622 | Median: 5 cm476 fish measuredLargest measured bullhead: 9.2 cm | — |
| Stone loachBarbatula barbatula | 19 | 2024 | 162 | Median: 4.2 cm133 fish measuredLargest measured stone loach: 12.2 cm | — |
| DaceLeuciscus leuciscus | 17 | 2025 | 4,438 | Median: 6.3 cm3,237 fish measuredLargest measured dace: 29.1 cm | — |
| European eelAnguilla anguilla | 17 | 2021 | 44 | Median: 30 cm34 fish measuredLargest measured european eel: 70 cm | — |
| 3-spined sticklebackGasterosteus aculeatus | 17 | 2025 | 4,116 | Median: 2.9 cm1,752 fish measuredLargest measured 3-spined stickleback: 5.8 cm | — |
| RoachRutilus rutilus | 16 | 2024 | 13,346 | Median: 5 cm5,406 fish measuredLargest measured roach: 37.1 cm | — |
| PerchPerca fluviatilis | 16 | 2025 | 1,318 | Median: 10.1 cm1,028 fish measuredLargest measured perch: 38.7 cm | — |
| Brown / sea troutSalmo trutta | 16 | 2024 | 1,095 | Median: 16.3 cm1,080 fish measuredLargest measured brown / sea trout: 48.3 cm | — |
| GudgeonGobio gobio | 15 | 2025 | 10,827 | Median: 3.8 cm4,486 fish measuredLargest measured gudgeon: 16.2 cm | — |
| GraylingThymallus thymallus | 14 | 2022 | 707 | Median: 18.1 cm684 fish measuredLargest measured grayling: 47.6 cm | — |
| ChubLeuciscus cephalus | 13 | 2025 | 2,446 | Median: 3.7 cm1,788 fish measuredLargest measured chub: 58 cm | Recorded weight: 5 lb 8.2 oz (2.5 kg)1 fish weighed |
| PikeEsox lucius | 12 | 2024 | 1,513 | Median: 32.2 cm1,489 fish measuredLargest measured pike: 102.5 cm | — |
| RuffeGymnocephalus cernuus | 11 | 2024 | 115 | Median: 8.4 cm115 fish measuredLargest measured ruffe: 14.6 cm | — |
| BleakAlburnus alburnus | 9 | 2024 | 510 | Median: 9.1 cm373 fish measuredLargest measured bleak: 16.4 cm | — |
| BarbelBarbus barbus | 7 | 2018 | 328 | Median: 17 cm316 fish measuredLargest measured barbel: 68.8 cm | — |
| Common breamAbramis brama | 6 | 2018 | 150 | Median: 3.3 cm95 fish measuredLargest measured common bream: 14.6 cm | — |
| 10-spined sticklebackPungitius pungitius | 5 | 2015 | 102 | Median: 3.4 cm56 fish measuredLargest measured 10-spined stickleback: 4.6 cm | — |
| FlounderPlatichthys flesus | 5 | 2015 | 94 | Median: 19.8 cm94 fish measuredLargest measured flounder: 40.5 cm | — |
| RuddScardinius erythrophthalmus | 5 | 2007 | 8 | Median: 10.5 cm8 fish measuredLargest measured rudd: 19.5 cm | — |
| Rainbow troutOncorhynchus mykiss | 4 | 2018 | 5 | Median: 29.4 cm4 fish measuredLargest measured rainbow trout: 30.6 cm | — |
| Atlantic salmonSalmo salar | 3 | 2016 | 4 | Median: 9.8 cm4 fish measuredLargest measured atlantic salmon: 13.8 cm | — |
| Silver breamAbramis bjoerkna | 3 | 2024 | 5 | Median: 7.4 cm5 fish measuredLargest measured silver bream: 15.5 cm | — |
| Brook lampreyLampetra planeri | 2 | 2013 | — | — | — |
| Common gobyPomatoschistus microps | 1 | 2002 | — | — | — |
| River lampreyLampetra fluviatilis | 1 | 2002 | 2 | Recorded length: 3.2 cm1 fish measured | — |
| TenchTinca tinca | 1 | 1997 | 2 | Median: 30.6 cm2 fish measuredLargest measured tench: 50.8 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 Derwent (Yorkshire). 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 →