River Test
22 fish species have been recorded at 82 locations along the River Test.
Records updated10 August 2026Most recent survey: 2025
- Fish species
- 22
- Places surveyed
- 82
- Survey visits
- 544
- Records span
- 2001–2025
Local EA evidence
Where fish were recorded
82 of 82 places shown
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 | 79 | 2025 | 2,605 | Median: 12.6 cm2,604 fish measuredLargest measured brown / sea trout: 65.2 cm | Median: 4.7 oz (0.133 kg)655 fish weighedLargest measured: 7 lb 5.7 oz (3.34 kg) |
| European eelAnguilla anguilla | 75 | 2025 | 1,754 | Median: 36.3 cm1,110 fish measuredLargest measured european eel: 90 cm | Median: 2.8 oz (0.0795 kg)132 fish weighedLargest measured: 2 lb 11 oz (1.22 kg) |
| BullheadCottus gobio | 69 | 2025 | 3,748 | Median: 5.2 cm781 fish measuredLargest measured bullhead: 9.6 cm | Median: 0.2 oz (0.006 kg)21 fish weighedLargest measured: 1 oz (0.027 kg) |
| MinnowPhoxinus phoxinus | 59 | 2025 | 7,203 | Median: 5.5 cm205 fish measuredLargest measured minnow: 9.5 cm | Median: 0.1 oz (0.0025 kg)26 fish weighedLargest measured: 0.4 oz (0.011 kg) |
| Stone loachBarbatula barbatula | 52 | 2025 | 1,247 | Median: 7.3 cm43 fish measuredLargest measured stone loach: 9.3 cm | Median: 0.2 oz (0.0055 kg)8 fish weighedLargest measured: 0.3 oz (0.008 kg) |
| GraylingThymallus thymallus | 49 | 2025 | 808 | Median: 21 cm808 fish measuredLargest measured grayling: 42.5 cm | Median: 4.2 oz (0.12 kg)447 fish weighedLargest measured: 1 lb 9 oz (0.71 kg) |
| Atlantic salmonSalmo salar | 48 | 2025 | 2,082 | Median: 9.9 cm2,082 fish measuredLargest measured atlantic salmon: 22 cm | Median: 0.5 oz (0.015 kg)428 fish weighedLargest measured: 6.2 oz (0.176 kg) |
| Brook lampreyLampetra planeri | 39 | 2025 | 449 | Median: 10 cm385 fish measuredLargest measured brook lamprey: 16 cm | — |
| 3-spined sticklebackGasterosteus aculeatus | 26 | 2025 | 97 | Median: 2.8 cm5 fish measuredLargest measured 3-spined stickleback: 5.9 cm | — |
| PikeEsox lucius | 23 | 2024 | 124 | Median: 29.1 cm124 fish measuredLargest measured pike: 144 cm | Median: 7 oz (0.199 kg)74 fish weighedLargest measured: 5 lb 8.1 oz (2.5 kg) |
| GudgeonGobio gobio | 14 | 2025 | 508 | Median: 9.3 cm508 fish measuredLargest measured gudgeon: 16.5 cm | Median: 0.3 oz (0.009 kg)300 fish weighedLargest measured: 2.5 oz (0.07 kg) |
| RoachRutilus rutilus | 13 | 2025 | 722 | Median: 13.3 cm722 fish measuredLargest measured roach: 36.8 cm | Median: 1.3 oz (0.036 kg)374 fish weighedLargest measured: 1 lb 11.4 oz (0.778 kg) |
| ChubLeuciscus cephalus | 12 | 2025 | 181 | Median: 30.2 cm181 fish measuredLargest measured chub: 53.9 cm | Median: 2.1 oz (0.06 kg)39 fish weighedLargest measured: 3 lb 9.8 oz (1.64 kg) |
| PerchPerca fluviatilis | 12 | 2025 | 89 | Median: 15.8 cm89 fish measuredLargest measured perch: 33.4 cm | Median: 1.4 oz (0.0405 kg)36 fish weighedLargest measured: 15.9 oz (0.452 kg) |
| DaceLeuciscus leuciscus | 9 | 2025 | 86 | Median: 20.7 cm86 fish measuredLargest measured dace: 28.4 cm | Median: 2.2 oz (0.063 kg)21 fish weighedLargest measured: 10.2 oz (0.289 kg) |
| Rainbow troutOncorhynchus mykiss | 4 | 2018 | 11 | Median: 60 cm11 fish measuredLargest measured rainbow trout: 71 cm | Median: 1 lb 10.2 oz (0.744 kg)2 fish weighedLargest measured: 2 lb 10.5 oz (1.2 kg) |
| RuddScardinius erythrophthalmus | 3 | 2014 | 6 | Median: 8.9 cm6 fish measuredLargest measured rudd: 28.8 cm | Median: 5.4 oz (0.152 kg)5 fish weighedLargest measured: 1 lb 0.4 oz (0.464 kg) |
| Common breamAbramis brama | 2 | 2018 | 2 | Median: 25.9 cm2 fish measuredLargest measured common bream: 36.1 cm | — |
| Common carpCyprinus carpio | 1 | 2006 | 13 | Median: 43.2 cm13 fish measuredLargest measured common carp: 54.4 cm | Median: 6 lb 1.7 oz (2.77 kg)13 fish weighedLargest measured: 13 lb 3.3 oz (5.99 kg) |
| Topmouth gudgeonPseudorasbora parva | 1 | 2023 | 26 | Median: 5.1 cm26 fish measuredLargest measured topmouth gudgeon: 7.6 cm | — |
| 10-spined sticklebackPungitius pungitius | 1 | 2024 | 1 | — | — |
| BarbelBarbus barbus | 1 | 2025 | 1 | Recorded length: 3.6 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 Test. 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 →