River Cadnam
11 fish species have been recorded at 2 locations along the River Cadnam.
- Fish species
- 11
- Places surveyed
- 2
- Survey visits
- 21
- Records span
- 2001–2025
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 |
|---|---|---|---|---|---|
| BullheadCottus gobio | 2 | 2025 | 217 | Median: 6 cm33 fish measuredLargest measured bullhead: 7.5 cm | — |
| MinnowPhoxinus phoxinus | 2 | 2025 | 252 | Median: 4.9 cm17 fish measuredLargest measured minnow: 6 cm | — |
| Stone loachBarbatula barbatula | 2 | 2025 | 281 | Median: 8.1 cm11 fish measuredLargest measured stone loach: 9.5 cm | — |
| Brook lampreyLampetra planeri | 2 | 2025 | 89 | Median: 12 cm30 fish measuredLargest measured brook lamprey: 14.8 cm | — |
| Brown / sea troutSalmo trutta | 2 | 2025 | 91 | Median: 14.7 cm91 fish measuredLargest measured brown / sea trout: 35.6 cm | Median: 7 oz (0.199 kg)3 fish weighedLargest measured: 14.8 oz (0.419 kg) |
| RoachRutilus rutilus | 1 | 2025 | 210 | Median: 13.4 cm210 fish measuredLargest measured roach: 22.2 cm | Median: 0.2 oz (0.006 kg)3 fish weighedLargest measured: 0.2 oz (0.007 kg) |
| European eelAnguilla anguilla | 1 | 2025 | 7 | Median: 36.5 cm6 fish measuredLargest measured european eel: 44.5 cm | — |
| TenchTinca tinca | 1 | 2025 | 23 | Median: 9.3 cm23 fish measuredLargest measured tench: 18 cm | — |
| PerchPerca fluviatilis | 1 | 2024 | 5 | Median: 13 cm5 fish measuredLargest measured perch: 16.6 cm | — |
| PikeEsox lucius | 1 | 2022 | 2 | Median: 38.5 cm2 fish measuredLargest measured pike: 44.2 cm | Recorded weight: 1 lb 9.2 oz (0.713 kg)1 fish weighed |
| ChubLeuciscus cephalus | 1 | 2018 | 1 | Recorded length: 25.5 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 Cadnam. 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 →