River Main Fowey
9 fish species have been recorded at 21 locations along the River Main Fowey.
- Fish species
- 9
- Places surveyed
- 21
- Survey visits
- 217
- Records span
- 1977–2026
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 |
|---|---|---|---|---|---|
| Brown / sea troutSalmo trutta | 21 | 2026 | 17,113 | Median: 9.1 cm12,314 fish measuredLargest measured brown / sea trout: 63.5 cm | Median: 1 lb 8.7 oz (0.7 kg)6 fish weighedLargest measured: 2 lb 3.3 oz (1 kg) |
| BullheadCottus gobio | 21 | 2026 | 13,100 | Median: 4.8 cm8,764 fish measuredLargest measured bullhead: 8.9 cm | — |
| European eelAnguilla anguilla | 21 | 2024 | 1,047 | Median: 19.6 cm1,047 fish measuredLargest measured european eel: 67.3 cm | Median: 9.9 oz (0.28 kg)3 fish weighedLargest measured: 11.3 oz (0.32 kg) |
| Atlantic salmonSalmo salar | 20 | 2024 | 8,761 | Median: 6.5 cm5,740 fish measuredLargest measured atlantic salmon: 61.9 cm | Recorded weight: 1 lb 14 oz (0.85 kg)1 fish weighed |
| MinnowPhoxinus phoxinus | 12 | 2026 | 2,589 | Median: 5.5 cm2,567 fish measuredLargest measured minnow: 9.8 cm | — |
| Brook lampreyLampetra planeri | 5 | 2024 | 190 | Median: 10.9 cm190 fish measuredLargest measured brook lamprey: 14.1 cm | — |
| 3-spined sticklebackGasterosteus aculeatus | 1 | 2024 | 7 | Median: 3.4 cm7 fish measuredLargest measured 3-spined stickleback: 3.9 cm | — |
| FlounderPlatichthys flesus | 1 | 2008 | 1 | Recorded length: 6.3 cm1 fish measured | — |
| Rainbow troutOncorhynchus mykiss | 1 | 1994 | — | — | — |
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 Main Fowey. 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 →