River Main Tamar
15 fish species have been recorded at 40 locations along the River Main Tamar.
- Fish species
- 15
- Places surveyed
- 40
- Survey visits
- 3,572
- Records span
- 1986–2025
Local EA evidence
Where fish were recorded
Choose a point on the map to see what was recorded there.
Check local permissions before fishing.
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 |
|---|---|---|---|---|---|
| BullheadCottus gobio | 39 | 2025 | 8,978 | Median: 4.1 cm3,998 fish measuredLargest measured bullhead: 9.9 cm | — |
| Stone loachBarbatula barbatula | 39 | 2025 | 1,960 | Median: 7.4 cm1,122 fish measuredLargest measured stone loach: 12 cm | — |
| Atlantic salmonSalmo salar | 38 | 2024 | 11,770 | Median: 62.2 cm9,031 fish measuredLargest measured atlantic salmon: 93 cm | Median: 6 lb 1.7 oz (2.77 kg)6,646 fish weighedLargest measured: 19 lb 7.5 oz (8.83 kg) |
| Brown / sea troutSalmo trutta | 36 | 2025 | 25,527 | Median: 31.2 cm22,153 fish measuredLargest measured brown / sea trout: 83.9 cm | Median: 13.2 oz (0.375 kg)16,562 fish weighedLargest measured: 18 lb 1.2 oz (8.2 kg) |
| MinnowPhoxinus phoxinus | 35 | 2025 | 3,452 | Median: 4.5 cm1,466 fish measuredLargest measured minnow: 8 cm | — |
| European eelAnguilla anguilla | 26 | 2024 | 147 | Median: 19 cm147 fish measuredLargest measured european eel: 75 cm | Median: 3 oz (0.085 kg)14 fish weighedLargest measured: 2 lb 5 oz (1.05 kg) |
| GraylingThymallus thymallus | 22 | 2025 | 175 | Median: 9.1 cm175 fish measuredLargest measured grayling: 40 cm | Median: 8.5 oz (0.24 kg)19 fish weighedLargest measured: 1 lb 3.4 oz (0.55 kg) |
| DaceLeuciscus leuciscus | 13 | 2022 | 329 | Median: 4.3 cm95 fish measuredLargest measured dace: 22.7 cm | — |
| Brook lampreyLampetra planeri | 12 | 2025 | 27 | Median: 12.8 cm24 fish measuredLargest measured brook lamprey: 19.7 cm | — |
| RoachRutilus rutilus | 8 | 2022 | 122 | Median: 9.8 cm112 fish measuredLargest measured roach: 19.8 cm | — |
| PerchPerca fluviatilis | 4 | 2023 | 85 | Median: 6.7 cm81 fish measuredLargest measured perch: 20.7 cm | — |
| Common breamAbramis brama | 3 | 2016 | 2 | Median: 30.6 cm2 fish measuredLargest measured common bream: 40 cm | Median: 1 lb 12.6 oz (0.81 kg)2 fish weighedLargest measured: 3 lb 2.1 oz (1.42 kg) |
| Sea lampreyPetromyzon marinus | 1 | 2018 | 215 | Median: 75.5 cm214 fish measuredLargest measured sea lamprey: 88.6 cm | Median: 2 lb 0.8 oz (0.93 kg)214 fish weighedLargest measured: 4 lb 2 oz (1.87 kg) |
| Allis shadAlosa alosa | 1 | 2018 | 21 | Median: 49.7 cm21 fish measuredLargest measured allis shad: 57 cm | Median: 3 lb 6 oz (1.53 kg)21 fish weighedLargest measured: 4 lb 14.7 oz (2.23 kg) |
| RuddScardinius erythrophthalmus | 1 | 2008 | 1 | Recorded length: 10 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 Main Tamar. 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 →