River Glaven
18 fish species have been recorded at 19 locations along the River Glaven.
- Fish species
- 18
- Places surveyed
- 19
- Survey visits
- 96
- Records span
- 1988–2026
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 |
|---|---|---|---|---|---|
| BullheadCottus gobio | 13 | 2026 | 8,898 | Median: 5.8 cm7,636 fish measuredLargest measured bullhead: 12.2 cm | Median: 0.1 oz (0.002 kg)24 fish weighedLargest measured: 0.7 oz (0.019 kg) |
| 3-spined sticklebackGasterosteus aculeatus | 13 | 2026 | 1,364 | Median: 4.4 cm1,135 fish measuredLargest measured 3-spined stickleback: 7.2 cm | — |
| European eelAnguilla anguilla | 11 | 2026 | 3,313 | Median: 24.5 cm1,904 fish measuredLargest measured european eel: 66 cm | Median: 0.9 oz (0.026 kg)846 fish weighedLargest measured: 1 lb 0.6 oz (0.472 kg) |
| Brook lampreyLampetra planeri | 10 | 2026 | 2,966 | Median: 13.7 cm1,444 fish measuredLargest measured brook lamprey: 19.8 cm | Median: 0.2 oz (0.0056 kg)524 fish weighedLargest measured: 0.4 oz (0.0127 kg) |
| PikeEsox lucius | 10 | 2023 | 133 | Median: 26.3 cm133 fish measuredLargest measured pike: 79 cm | Median: 5.1 oz (0.145 kg)2 fish weighedLargest measured: 7.8 oz (0.22 kg) |
| PerchPerca fluviatilis | 9 | 2021 | 54 | Median: 15.4 cm54 fish measuredLargest measured perch: 26.6 cm | — |
| RoachRutilus rutilus | 9 | 2017 | 60 | Median: 11.2 cm60 fish measuredLargest measured roach: 19.4 cm | Median: 1.2 oz (0.0345 kg)6 fish weighedLargest measured: 4.4 oz (0.126 kg) |
| Brown / sea troutSalmo trutta | 8 | 2026 | 2,361 | Median: 15.8 cm2,361 fish measuredLargest measured brown / sea trout: 48.5 cm | Median: 3.4 oz (0.095 kg)8 fish weighedLargest measured: 3.6 oz (0.102 kg) |
| Stone loachBarbatula barbatula | 6 | 2026 | 686 | Median: 8.1 cm686 fish measuredLargest measured stone loach: 12.8 cm | — |
| GudgeonGobio gobio | 4 | 2017 | 334 | Median: 10.8 cm334 fish measuredLargest measured gudgeon: 14.7 cm | — |
| TenchTinca tinca | 4 | 2014 | 11 | Median: 17.8 cm11 fish measuredLargest measured tench: 42 cm | — |
| FlounderPlatichthys flesus | 2 | 2017 | 20 | Median: 9 cm20 fish measuredLargest measured flounder: 22.8 cm | — |
| Common carpCyprinus carpio | 2 | 2008 | 2 | Median: 31.2 cm2 fish measuredLargest measured common carp: 48.8 cm | — |
| River lampreyLampetra fluviatilis | 2 | 2017 | 4 | Recorded length: 17.9 cm1 fish measured | — |
| Common breamAbramis brama | 1 | 2002 | 1 | Recorded length: 31.2 cm1 fish measured | Recorded weight: 1 lb 3.4 oz (0.551 kg)1 fish weighed |
| MinnowPhoxinus phoxinus | 1 | 2023 | 1 | Recorded length: 5.2 cm1 fish measured | — |
| Rainbow troutOncorhynchus mykiss | 1 | 1988 | 6 | Median: 18.9 cm6 fish measuredLargest measured rainbow trout: 20 cm | — |
| RuddScardinius erythrophthalmus | 1 | 2014 | 1 | Recorded length: 14.2 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 Glaven. 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 →