River Yarrow
17 fish species have been recorded at 20 locations along the River Yarrow.
- Fish species
- 17
- Places surveyed
- 20
- Survey visits
- 134
- Records span
- 1991–2023
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 |
|---|---|---|---|---|---|
| 3-spined sticklebackGasterosteus aculeatus | 18 | 2011 | — | — | — |
| BullheadCottus gobio | 16 | 2023 | — | — | — |
| Brown / sea troutSalmo trutta | 15 | 2023 | 3,624 | Median: 10.1 cm3,614 fish measuredLargest measured brown / sea trout: 41.5 cm | Recorded weight: 7.1 oz (0.202 kg)1 fish weighed |
| European eelAnguilla anguilla | 15 | 2023 | 344 | Median: 25 cm333 fish measuredLargest measured european eel: 58 cm | Median: 2.6 oz (0.075 kg)3 fish weighedLargest measured: 7.1 oz (0.2 kg) |
| ChubLeuciscus cephalus | 13 | 2013 | 851 | Median: 19.3 cm840 fish measuredLargest measured chub: 41.5 cm | Median: 2.1 oz (0.059 kg)46 fish weighedLargest measured: 1 lb 5.4 oz (0.608 kg) |
| GudgeonGobio gobio | 11 | 2023 | 187 | Median: 12 cm156 fish measuredLargest measured gudgeon: 16.4 cm | Median: 1.4 oz (0.0405 kg)4 fish weighedLargest measured: 1.7 oz (0.048 kg) |
| Stone loachBarbatula barbatula | 11 | 2011 | — | — | — |
| PerchPerca fluviatilis | 9 | 2013 | 240 | Median: 6.9 cm225 fish measuredLargest measured perch: 29.1 cm | Median: 0.6 oz (0.016 kg)66 fish weighedLargest measured: 3.1 oz (0.088 kg) |
| DaceLeuciscus leuciscus | 7 | 2012 | 176 | Median: 12.2 cm176 fish measuredLargest measured dace: 24.6 cm | Median: 1.1 oz (0.03 kg)7 fish weighedLargest measured: 2.5 oz (0.07 kg) |
| RoachRutilus rutilus | 7 | 2012 | 396 | Median: 13.7 cm393 fish measuredLargest measured roach: 28.2 cm | Median: 0.5 oz (0.015 kg)65 fish weighedLargest measured: 7.1 oz (0.202 kg) |
| PikeEsox lucius | 6 | 2023 | 10 | Median: 33.9 cm10 fish measuredLargest measured pike: 57 cm | Median: 7.3 oz (0.207 kg)2 fish weighedLargest measured: 8.5 oz (0.24 kg) |
| MinnowPhoxinus phoxinus | 5 | 2023 | — | — | — |
| RuffeGymnocephalus cernuus | 3 | 2008 | 14 | Median: 7.6 cm14 fish measuredLargest measured ruffe: 12.5 cm | Median: 0.2 oz (0.006 kg)12 fish weighedLargest measured: 0.4 oz (0.012 kg) |
| FlounderPlatichthys flesus | 2 | 2023 | 57 | Median: 16.2 cm57 fish measuredLargest measured flounder: 23.5 cm | — |
| Brook lampreyLampetra planeri | 1 | 2001 | — | — | — |
| Common carpCyprinus carpio | 1 | 2004 | 1 | Recorded length: 56 cm1 fish measured | — |
| RuddScardinius erythrophthalmus | 1 | 2003 | 1 | Recorded length: 21 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 Yarrow. 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 →