Bielby Beck System
14 fish species have been recorded at 7 locations along the Bielby Beck System.
- Fish species
- 14
- Places surveyed
- 7
- Survey visits
- 13
- Records span
- 2002–2019
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 | 7 | 2019 | 17 | Median: 6.3 cm17 fish measuredLargest measured stone loach: 10.1 cm | — |
| BullheadCottus gobio | 6 | 2019 | 45 | Median: 4.9 cm25 fish measuredLargest measured bullhead: 7.6 cm | — |
| MinnowPhoxinus phoxinus | 5 | 2019 | 3,737 | Median: 4.7 cm83 fish measuredLargest measured minnow: 7 cm | — |
| European eelAnguilla anguilla | 5 | 2019 | 3 | Median: 27 cm3 fish measuredLargest measured european eel: 35 cm | — |
| 3-spined sticklebackGasterosteus aculeatus | 4 | 2019 | 13 | Median: 4.2 cm13 fish measuredLargest measured 3-spined stickleback: 5.4 cm | — |
| Brown / sea troutSalmo trutta | 3 | 2019 | 24 | Median: 10.6 cm24 fish measuredLargest measured brown / sea trout: 40.3 cm | — |
| RoachRutilus rutilus | 3 | 2019 | 144 | Median: 7.3 cm144 fish measuredLargest measured roach: 22 cm | — |
| DaceLeuciscus leuciscus | 3 | 2019 | 30 | Median: 10.8 cm30 fish measuredLargest measured dace: 21.6 cm | — |
| PikeEsox lucius | 3 | 2019 | 25 | Median: 11.8 cm25 fish measuredLargest measured pike: 42.3 cm | — |
| 10-spined sticklebackPungitius pungitius | 3 | 2012 | — | — | — |
| GudgeonGobio gobio | 2 | 2019 | 16 | Median: 8.2 cm16 fish measuredLargest measured gudgeon: 11.7 cm | — |
| PerchPerca fluviatilis | 2 | 2019 | 11 | Median: 19.5 cm11 fish measuredLargest measured perch: 33.1 cm | — |
| ChubLeuciscus cephalus | 2 | 2019 | 24 | Median: 5.3 cm24 fish measuredLargest measured chub: 25.4 cm | — |
| Common breamAbramis brama | 1 | 2002 | 1 | Recorded length: 5.9 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 Bielby Beck System. 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 →