River Nidd
23 fish species have been recorded at 20 locations along the River Nidd.
- Fish species
- 23
- Places surveyed
- 20
- Survey visits
- 166
- 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 | 20 | 2025 | 18,553 | Median: 3.9 cm3,412 fish measuredLargest measured minnow: 8.8 cm | — |
| BullheadCottus gobio | 20 | 2025 | 1,922 | Median: 6.1 cm843 fish measuredLargest measured bullhead: 10.3 cm | — |
| Stone loachBarbatula barbatula | 18 | 2025 | 947 | Median: 8.1 cm601 fish measuredLargest measured stone loach: 16.6 cm | — |
| GraylingThymallus thymallus | 17 | 2025 | 1,654 | Median: 15.7 cm1,652 fish measuredLargest measured grayling: 37.9 cm | — |
| Brown / sea troutSalmo trutta | 16 | 2025 | 1,699 | Median: 15.8 cm1,697 fish measuredLargest measured brown / sea trout: 55.6 cm | — |
| European eelAnguilla anguilla | 15 | 2025 | 108 | Median: 34.3 cm102 fish measuredLargest measured european eel: 70 cm | — |
| GudgeonGobio gobio | 13 | 2025 | 3,569 | Median: 8.3 cm1,468 fish measuredLargest measured gudgeon: 18.7 cm | — |
| ChubLeuciscus cephalus | 12 | 2025 | 2,855 | Median: 4 cm1,840 fish measuredLargest measured chub: 53.6 cm | — |
| DaceLeuciscus leuciscus | 10 | 2025 | 3,117 | Median: 8.1 cm2,252 fish measuredLargest measured dace: 25.1 cm | — |
| BarbelBarbus barbus | 10 | 2025 | 773 | Median: 4.4 cm606 fish measuredLargest measured barbel: 70.1 cm | Median: 3 lb 12.7 oz (1.72 kg)9 fish weighedLargest measured: 4 lb 15.7 oz (2.26 kg) |
| RoachRutilus rutilus | 9 | 2025 | 5,334 | Median: 4.1 cm2,867 fish measuredLargest measured roach: 25.9 cm | — |
| PikeEsox lucius | 9 | 2025 | 346 | Median: 30.3 cm344 fish measuredLargest measured pike: 120 cm | — |
| PerchPerca fluviatilis | 9 | 2025 | 659 | Median: 14.7 cm422 fish measuredLargest measured perch: 40.1 cm | — |
| RuffeGymnocephalus cernuus | 8 | 2025 | 319 | Median: 10.4 cm212 fish measuredLargest measured ruffe: 14.7 cm | — |
| BleakAlburnus alburnus | 7 | 2025 | 1,728 | Median: 5.7 cm1,164 fish measuredLargest measured bleak: 16.2 cm | — |
| 3-spined sticklebackGasterosteus aculeatus | 7 | 2025 | 25 | Median: 3.7 cm25 fish measuredLargest measured 3-spined stickleback: 4.5 cm | — |
| Atlantic salmonSalmo salar | 6 | 2025 | 178 | Median: 6.9 cm177 fish measuredLargest measured atlantic salmon: 16.1 cm | — |
| Common breamAbramis brama | 3 | 2016 | 6 | Median: 10 cm6 fish measuredLargest measured common bream: 36.1 cm | — |
| River lampreyLampetra fluviatilis | 3 | 2017 | 8 | — | — |
| 10-spined sticklebackPungitius pungitius | 1 | 2015 | 2 | Median: 4.2 cm2 fish measuredLargest measured 10-spined stickleback: 4.7 cm | — |
| Brook lampreyLampetra planeri | 1 | 2017 | 2 | — | — |
| Sea lampreyPetromyzon marinus | 1 | 2013 | 1 | Recorded length: 64 cm1 fish measured | — |
| Silver breamAbramis bjoerkna | 1 | 2025 | 1 | Recorded length: 5.3 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 Nidd. 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 →