River US Lt Ouse
21 fish species have been recorded at 20 locations along the River US Lt Ouse.
- Fish species
- 21
- Places surveyed
- 20
- Survey visits
- 96
- Records span
- 1988–2024
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 | 19 | 2024 | 302 | Median: 6.1 cm292 fish measuredLargest measured bullhead: 9.9 cm | — |
| PikeEsox lucius | 18 | 2024 | 634 | Median: 33 cm596 fish measuredLargest measured pike: 88.3 cm | — |
| DaceLeuciscus leuciscus | 15 | 2024 | 3,699 | Median: 13.2 cm3,604 fish measuredLargest measured dace: 27.8 cm | — |
| European eelAnguilla anguilla | 15 | 2024 | 796 | Median: 43 cm38 fish measuredLargest measured european eel: 70.2 cm | Median: 6.2 oz (0.175 kg)35 fish weighedLargest measured: 1 lb 14.3 oz (0.86 kg) |
| GudgeonGobio gobio | 15 | 2024 | 2,003 | Median: 9.3 cm1,710 fish measuredLargest measured gudgeon: 15.3 cm | — |
| PerchPerca fluviatilis | 15 | 2024 | 695 | Median: 12.8 cm670 fish measuredLargest measured perch: 34.3 cm | — |
| RoachRutilus rutilus | 14 | 2024 | 2,124 | Median: 14.3 cm1,831 fish measuredLargest measured roach: 32.3 cm | — |
| 3-spined sticklebackGasterosteus aculeatus | 14 | 2024 | 170 | Median: 3.9 cm159 fish measuredLargest measured 3-spined stickleback: 6.8 cm | — |
| ChubLeuciscus cephalus | 11 | 2024 | 288 | Median: 25.7 cm274 fish measuredLargest measured chub: 54.8 cm | — |
| MinnowPhoxinus phoxinus | 11 | 2024 | 418 | Median: 5.8 cm355 fish measuredLargest measured minnow: 9.2 cm | — |
| Stone loachBarbatula barbatula | 10 | 2024 | 167 | Median: 8.1 cm165 fish measuredLargest measured stone loach: 10.8 cm | — |
| Brook lampreyLampetra planeri | 10 | 2015 | 64 | Median: 11.2 cm19 fish measuredLargest measured brook lamprey: 12.5 cm | Median: 0.1 oz (0.003 kg)19 fish weighedLargest measured: 0.2 oz (0.005 kg) |
| RuddScardinius erythrophthalmus | 10 | 2024 | 74 | Median: 27.3 cm73 fish measuredLargest measured rudd: 33.3 cm | — |
| Common breamAbramis brama | 6 | 2001 | 158 | Median: 25.8 cm135 fish measuredLargest measured common bream: 51.8 cm | — |
| Brown / sea troutSalmo trutta | 5 | 2024 | 30 | Median: 26.2 cm30 fish measuredLargest measured brown / sea trout: 68.5 cm | — |
| TenchTinca tinca | 5 | 2018 | 9 | Median: 22.1 cm8 fish measuredLargest measured tench: 36.3 cm | — |
| Spined loachCobitis taenia | 4 | 2012 | 8 | Median: 6.4 cm8 fish measuredLargest measured spined loach: 8.3 cm | — |
| GraylingThymallus thymallus | 3 | 1996 | 19 | Median: 25.3 cm19 fish measuredLargest measured grayling: 31.3 cm | — |
| Common carpCyprinus carpio | 3 | 2001 | 4 | Median: 33.8 cm3 fish measuredLargest measured common carp: 49.3 cm | — |
| RuffeGymnocephalus cernuus | 2 | 2000 | 17 | Median: 12.3 cm17 fish measuredLargest measured ruffe: 15.3 cm | — |
| 10-spined sticklebackPungitius pungitius | 1 | 2012 | 2 | Median: 4 cm2 fish measuredLargest measured 10-spined stickleback: 4.1 cm | — |
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 US Lt Ouse. 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 →