Moretons Leam
17 fish species have been recorded at 8 locations along the Moretons Leam.
- Fish species
- 17
- Places surveyed
- 8
- Survey visits
- 47
- Records span
- 1981–2025
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 |
|---|---|---|---|---|---|
| RoachRutilus rutilus | 8 | 2025 | 37,065 | Median: 9 cm15,077 fish measuredLargest measured roach: 26.5 cm | — |
| PerchPerca fluviatilis | 8 | 2025 | 1,102 | Median: 7.5 cm1,003 fish measuredLargest measured perch: 25.5 cm | — |
| PikeEsox lucius | 8 | 2025 | 386 | Median: 47 cm336 fish measuredLargest measured pike: 89 cm | — |
| Common breamAbramis brama | 8 | 2025 | 1,405 | Median: 7 cm1,285 fish measuredLargest measured common bream: 56.5 cm | — |
| RuffeGymnocephalus cernuus | 8 | 2013 | 216 | Median: 6.5 cm211 fish measuredLargest measured ruffe: 13 cm | — |
| European eelAnguilla anguilla | 8 | 2025 | 299 | Median: 50 cm21 fish measuredLargest measured european eel: 63 cm | — |
| RuddScardinius erythrophthalmus | 8 | 2013 | 418 | Median: 9.5 cm398 fish measuredLargest measured rudd: 24.5 cm | — |
| TenchTinca tinca | 8 | 2022 | 56 | Median: 36 cm56 fish measuredLargest measured tench: 47.5 cm | — |
| BleakAlburnus alburnus | 7 | 2025 | 692 | Median: 8.5 cm692 fish measuredLargest measured bleak: 16 cm | — |
| GudgeonGobio gobio | 7 | 1999 | 49 | Median: 9 cm49 fish measuredLargest measured gudgeon: 13 cm | — |
| Silver breamAbramis bjoerkna | 7 | 2007 | 36 | Median: 10.8 cm36 fish measuredLargest measured silver bream: 24.7 cm | — |
| 3-spined sticklebackGasterosteus aculeatus | 6 | 2022 | 50 | Median: 5.5 cm50 fish measuredLargest measured 3-spined stickleback: 7.5 cm | — |
| Spined loachCobitis taenia | 5 | 2025 | 511 | Median: 4.9 cm511 fish measuredLargest measured spined loach: 11.1 cm | — |
| DaceLeuciscus leuciscus | 4 | 1999 | 17 | Median: 7 cm17 fish measuredLargest measured dace: 16 cm | — |
| Stone loachBarbatula barbatula | 3 | 1999 | 5 | Median: 4.5 cm5 fish measuredLargest measured stone loach: 7.5 cm | — |
| ZanderSander lucioperca | 2 | 1995 | 4 | Median: 30.3 cm4 fish measuredLargest measured zander: 53 cm | — |
| ChubLeuciscus cephalus | 2 | 1999 | 2 | Median: 5.8 cm2 fish measuredLargest measured chub: 7 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 Moretons Leam. 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 →