Main River Lew
10 fish species have been recorded at 4 locations along the Main River Lew.
- Fish species
- 10
- Places surveyed
- 4
- Survey visits
- 49
- Records span
- 1997–2025
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 |
|---|---|---|---|---|---|
| Atlantic salmonSalmo salar | 4 | 2025 | 1,973 | Median: 6.7 cm965 fish measuredLargest measured atlantic salmon: 16.5 cm | — |
| Brown / sea troutSalmo trutta | 4 | 2025 | 1,366 | Median: 13.6 cm680 fish measuredLargest measured brown / sea trout: 34.7 cm | — |
| BullheadCottus gobio | 4 | 2025 | 1,771 | Median: 4.7 cm253 fish measuredLargest measured bullhead: 7.8 cm | — |
| Stone loachBarbatula barbatula | 4 | 2025 | 964 | Median: 7 cm165 fish measuredLargest measured stone loach: 11.1 cm | — |
| MinnowPhoxinus phoxinus | 4 | 2025 | 2,238 | Median: 5.6 cm282 fish measuredLargest measured minnow: 9.3 cm | — |
| European eelAnguilla anguilla | 3 | 2025 | 34 | Median: 29.5 cm33 fish measuredLargest measured european eel: 51.5 cm | — |
| GudgeonGobio gobio | 1 | 2024 | 1 | Recorded length: 4.9 cm1 fish measured | — |
| 3-spined sticklebackGasterosteus aculeatus | 1 | 2024 | 3 | Median: 3.9 cm3 fish measuredLargest measured 3-spined stickleback: 4.5 cm | — |
| Brook lampreyLampetra planeri | 1 | 2014 | 1 | Recorded length: 13.5 cm1 fish measured | — |
| RoachRutilus rutilus | 1 | 2014 | 2 | — | — |
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 Main River Lew. 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 →