Individual EA measurements
Largest measured roach
The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.
| Length | Survey date | Survey location | Survey ID |
|---|---|---|---|
| 24.7 cm | 17 Oct 2007 | Diamond Farm | 108375 |
| 23.9 cm | 18 Jun 1991 | Clewer - Oxmoor | 80986 |
| 23.1 cm | 9 May 1991 | Downstream Bleadon Sluice | 82151 |
| 22.7 cm | 9 May 1991 | Downstream Bleadon Sluice | 82151 |
| 22.5 cm | 3 Aug 2006 | Clewer (Te) | 100821 |
| 22.5 cm | 9 May 1991 | Downstream Bleadon Sluice | 82151 |
| 22 cm | 9 May 1991 | Downstream Bleadon Sluice | 82151 |
| 21.8 cm | 27 Jul 2005 | Riverside Farm (Te) | 85205 |
| 21.5 cm | 18 Jun 1991 | Clewer - Oxmoor | 80986 |
| 21.2 cm | 9 May 1991 | Downstream Bleadon Sluice | 82151 |
Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.
Explore the river
Where roach were found
Each point marks a survey location with at least one roach record.
Choose a point on the map to see what was recorded there.
Map points are approximate and don’t show fishing access. Check local permissions before visiting.
| Place surveyed | First recorded | Last recorded | Visits finding roach |
|---|---|---|---|
| Riverside Farm (Te) | 30 Aug 2002 | 4 Jul 2013 | 7 |
| Clewer (Te) | 27 Jul 2005 | 4 Jul 2013 | 5 |
| Diamond Farm | 17 Oct 2007 | 17 Oct 2007 | 1 |
| Poplar Farm (Te) | 23 May 1991 | 16 Aug 2007 | 5 |
| Latcham | 17 Jul 1991 | 17 Jul 1991 | 1 |
| Knowle | 1 Jul 1991 | 1 Jul 1991 | 1 |
| Upstream Longwater | 28 Jun 1991 | 28 Jun 1991 | 1 |
| The Forks | 19 Jun 1991 | 19 Jun 1991 | 1 |
| Cocklake | 18 Jun 1991 | 18 Jun 1991 | 1 |
| Clewer - Oxmoor | 18 Jun 1991 | 18 Jun 1991 | 1 |
| Downstream Clewer Pumping Station | 14 Jun 1991 | 14 Jun 1991 | 1 |
| Upper Weare | 3 Jun 1991 | 3 Jun 1991 | 1 |
| Downstream Lower Weare | 28 May 1991 | 28 May 1991 | 1 |
| White House Farm | 17 May 1991 | 17 May 1991 | 1 |
| Downstream Bleadon Sluice | 9 May 1991 | 9 May 1991 | 1 |
| Batch End Farm | 1 May 1991 | 1 May 1991 | 1 |
| Brean Cross | 29 Apr 1991 | 29 Apr 1991 | 1 |
Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.
1991–2013
Survey records by year
Each bar shows how many survey visits recorded roach that year.
Fish measured by surveyors
Measured length distribution
See how the 3,300 measured fish were spread across different length ranges.
- Smallest
- 2 cm
- Lower quarter
- 7.5 cm
- Median
- 8.5 cm
- Upper quarter
- 10.3 cm
- Largest
- 24.7 cm
Lengths are direct survey measurements rather than anglers’ catches.
Fish weighed by surveyors
Measured weight summary
Recorded weights were available for 1,288 roach. This is a subset of the measured fish and may not represent the whole population.
- Lightest
- 0 oz (0.001 kg)
- Lower quarter
- 0.3 oz (0.008 kg)
- Median
- 0.6 oz (0.016 kg)
- Upper quarter
- 1.3 oz (0.037 kg)
- Heaviest
- 3 lb 4.3 oz (1.48 kg)
These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.
More fish in this river
Explore the Main River Axe
Compare other species with enough survey and measurement data for a detailed page.
Before you fish
Good to know
These are past survey records, so the fish present today may be different. Map points are approximate—check local access, permissions and fishing rules before visiting.
Learn how RiverFish uses the data →