River Idle
24 fish species have been recorded at 10 locations along the River Idle.
- Fish species
- 24
- Places surveyed
- 10
- Survey visits
- 84
- Records span
- 1983–2024
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 |
|---|---|---|---|---|---|
| European eelAnguilla anguilla | 10 | 2024 | 1,126 | Median: 41 cm700 fish measuredLargest measured european eel: 85.5 cm | — |
| RoachRutilus rutilus | 10 | 2024 | 2,620 | Median: 9.8 cm2,563 fish measuredLargest measured roach: 34.1 cm | — |
| PerchPerca fluviatilis | 10 | 2024 | 258 | Median: 14.3 cm257 fish measuredLargest measured perch: 39.5 cm | — |
| PikeEsox lucius | 10 | 2024 | 174 | Median: 42.6 cm170 fish measuredLargest measured pike: 92.8 cm | — |
| ChubLeuciscus cephalus | 8 | 2024 | 495 | Median: 20.8 cm494 fish measuredLargest measured chub: 51.4 cm | — |
| GudgeonGobio gobio | 8 | 2017 | 1,445 | Median: 8.4 cm1,145 fish measuredLargest measured gudgeon: 14.5 cm | — |
| BleakAlburnus alburnus | 8 | 2017 | 112 | Median: 10 cm112 fish measuredLargest measured bleak: 15.9 cm | — |
| DaceLeuciscus leuciscus | 7 | 2017 | 267 | Median: 13.1 cm267 fish measuredLargest measured dace: 26 cm | — |
| Common breamAbramis brama | 7 | 2024 | 150 | Median: 40.5 cm148 fish measuredLargest measured common bream: 57.2 cm | — |
| BarbelBarbus barbus | 7 | 2017 | 35 | Median: 55.5 cm35 fish measuredLargest measured barbel: 64.3 cm | — |
| Stone loachBarbatula barbatula | 6 | 2024 | 589 | Median: 6.4 cm435 fish measuredLargest measured stone loach: 11.4 cm | — |
| MinnowPhoxinus phoxinus | 6 | 2024 | 458 | Median: 4 cm230 fish measuredLargest measured minnow: 7.2 cm | — |
| 3-spined sticklebackGasterosteus aculeatus | 5 | 2017 | 98 | Median: 3.9 cm93 fish measuredLargest measured 3-spined stickleback: 4.8 cm | — |
| BullheadCottus gobio | 5 | 2024 | 65 | Median: 7.1 cm65 fish measuredLargest measured bullhead: 10 cm | — |
| FlounderPlatichthys flesus | 4 | 2011 | 28 | Median: 28.9 cm28 fish measuredLargest measured flounder: 40.1 cm | — |
| Silver breamAbramis bjoerkna | 4 | 2014 | 39 | Median: 10.5 cm39 fish measuredLargest measured silver bream: 22.3 cm | — |
| Spined loachCobitis taenia | 4 | 2017 | 5 | Median: 6.2 cm5 fish measuredLargest measured spined loach: 8.4 cm | — |
| TenchTinca tinca | 4 | 2006 | 4 | Median: 36.8 cm4 fish measuredLargest measured tench: 43 cm | — |
| 10-spined sticklebackPungitius pungitius | 3 | 2017 | 9 | Median: 4 cm9 fish measuredLargest measured 10-spined stickleback: 4.6 cm | — |
| RuffeGymnocephalus cernuus | 2 | 2017 | 19 | Median: 10 cm19 fish measuredLargest measured ruffe: 12.9 cm | — |
| Common carpCyprinus carpio | 2 | 2011 | 4 | Median: 54.8 cm4 fish measuredLargest measured common carp: 60.5 cm | Median: 8 lb 3 oz (3.71 kg)3 fish weighedLargest measured: 14 lb 10.6 oz (6.65 kg) |
| RuddScardinius erythrophthalmus | 2 | 2009 | 2 | Median: 16.6 cm2 fish measuredLargest measured rudd: 23.6 cm | — |
| Atlantic salmonSalmo salar | 1 | 2003 | 1 | Recorded length: 87 cm1 fish measured | — |
| Brown / sea troutSalmo trutta | 1 | 2009 | 1 | Recorded length: 23 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 Idle. 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 →