River Blyth
13 fish species have been recorded at 14 locations along the River Blyth.
- Fish species
- 13
- Places surveyed
- 14
- Survey visits
- 49
- Records span
- 1993–2024
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 |
|---|---|---|---|---|---|
| Stone loachBarbatula barbatula | 13 | 2024 | 4,255 | Median: 8.7 cm14 fish measuredLargest measured stone loach: 10.5 cm | — |
| Brown / sea troutSalmo trutta | 12 | 2024 | 863 | Median: 7.3 cm813 fish measuredLargest measured brown / sea trout: 39.2 cm | — |
| MinnowPhoxinus phoxinus | 11 | 2024 | 2,972 | Median: 4.8 cm49 fish measuredLargest measured minnow: 7.8 cm | — |
| 3-spined sticklebackGasterosteus aculeatus | 10 | 2024 | 157 | Median: 4 cm5 fish measuredLargest measured 3-spined stickleback: 5.8 cm | — |
| European eelAnguilla anguilla | 9 | 2024 | 385 | Median: 22.6 cm365 fish measuredLargest measured european eel: 67 cm | — |
| GraylingThymallus thymallus | 3 | 2024 | 19 | Median: 8.2 cm19 fish measuredLargest measured grayling: 21.5 cm | — |
| GudgeonGobio gobio | 3 | 2022 | 9 | Median: 6.8 cm9 fish measuredLargest measured gudgeon: 11.2 cm | — |
| FlounderPlatichthys flesus | 2 | 2024 | 31 | Median: 16 cm31 fish measuredLargest measured flounder: 25.2 cm | — |
| BullheadCottus gobio | 2 | 2012 | 5 | — | — |
| Atlantic salmonSalmo salar | 1 | 2014 | 16 | Median: 6.7 cm15 fish measuredLargest measured atlantic salmon: 12.6 cm | — |
| Brook lampreyLampetra planeri | 1 | 2005 | — | — | — |
| PerchPerca fluviatilis | 1 | 2005 | 1 | Recorded length: 21.6 cm1 fish measured | — |
| River lampreyLampetra fluviatilis | 1 | 2011 | 1 | Recorded length: 10.7 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 Blyth. 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 →