River Wantsum
17 fish species have been recorded at 4 locations along the River Wantsum.
- Fish species
- 17
- Places surveyed
- 4
- Survey visits
- 19
- Records span
- 2002–2026
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 |
|---|---|---|---|---|---|
| RoachRutilus rutilus | 3 | 2026 | 4,680 | Median: 11.9 cm4,252 fish measuredLargest measured roach: 31 cm | Median: 0.4 oz (0.01 kg)45 fish weighedLargest measured: 10.8 oz (0.306 kg) |
| Common breamAbramis brama | 3 | 2026 | 1,087 | Median: 7.8 cm1,080 fish measuredLargest measured common bream: 48 cm | Median: 1.6 oz (0.046 kg)4 fish weighedLargest measured: 3.1 oz (0.088 kg) |
| PerchPerca fluviatilis | 2 | 2026 | 383 | Median: 9.4 cm226 fish measuredLargest measured perch: 31.5 cm | Median: 0.6 oz (0.018 kg)79 fish weighedLargest measured: 1 lb 1.9 oz (0.508 kg) |
| RuddScardinius erythrophthalmus | 2 | 2026 | 67 | Median: 10.2 cm67 fish measuredLargest measured rudd: 18.2 cm | Recorded weight: 1.1 oz (0.03 kg)1 fish weighed |
| TenchTinca tinca | 2 | 2026 | 17 | Median: 15.4 cm17 fish measuredLargest measured tench: 43 cm | Recorded weight: 4.1 oz (0.116 kg)1 fish weighed |
| Common carpCyprinus carpio | 2 | 2026 | 16 | Median: 11.7 cm16 fish measuredLargest measured common carp: 66 cm | Median: 0.4 oz (0.011 kg)5 fish weighedLargest measured: 2.7 oz (0.076 kg) |
| GudgeonGobio gobio | 2 | 2006 | 26 | Median: 9.5 cm26 fish measuredLargest measured gudgeon: 12.2 cm | Median: 0.4 oz (0.0105 kg)4 fish weighedLargest measured: 0.4 oz (0.012 kg) |
| FlounderPlatichthys flesus | 2 | 2015 | 73 | Median: 7.8 cm73 fish measuredLargest measured flounder: 24 cm | Median: 0.2 oz (0.007 kg)14 fish weighedLargest measured: 5.1 oz (0.144 kg) |
| European eelAnguilla anguilla | 2 | 2026 | 7 | Median: 31.2 cm7 fish measuredLargest measured european eel: 46 cm | — |
| PikeEsox lucius | 1 | 2026 | 15 | Median: 36 cm15 fish measuredLargest measured pike: 69 cm | Median: 14.6 oz (0.4135 kg)2 fish weighedLargest measured: 15.7 oz (0.445 kg) |
| Brown / sea troutSalmo trutta | 1 | 2015 | 4 | Median: 17.3 cm3 fish measuredLargest measured brown / sea trout: 24.3 cm | — |
| BleakAlburnus alburnus | 1 | 2026 | 4 | Median: 4.3 cm4 fish measuredLargest measured bleak: 6 cm | — |
| Motherless minnow / SunbleakLeucaspius delineatus | 1 | 2015 | 1 | Recorded length: 5.6 cm1 fish measured | — |
| PlaicePleuronectes platessa | 1 | 2005 | 2 | Median: 15.4 cm2 fish measuredLargest measured plaice: 17 cm | — |
| Sea bassDicentrarchus labrax | 1 | 2005 | 2 | Median: 11.4 cm2 fish measuredLargest measured sea bass: 11.5 cm | — |
| Silver breamAbramis bjoerkna | 1 | 2015 | 1 | Recorded length: 15.7 cm1 fish measured | — |
| Thick lipped grey mulletChelon labrosus | 1 | 2004 | 1 | Recorded length: 9.2 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 Wantsum. 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 →