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 |
|---|---|---|---|
| 29.2 cm | 20 Sept 2002 | Michelham Priory | 62400 |
| 28.1 cm | 14 Sept 2006 | Sherman Bridge | 102564 |
| 28 cm | 20 Sept 2002 | Michelham Priory | 62400 |
| 28 cm | 20 Sept 2002 | Michelham Priory | 62400 |
| 27.4 cm | 10 Sept 2013 | Mill Bridge | 138805 |
| 27 cm | 20 Sept 2002 | Michelham Priory | 62400 |
| 26.4 cm | 9 Sept 2003 | Arlington Intake | 76991 |
| 26.2 cm | 23 Oct 2009 | Long Bridge | 120684 |
| 25.9 cm | 9 Sept 2003 | Arlington Intake | 76991 |
| 25.3 cm | 24 Sept 2018 | Long Bridge | 153473 |
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 |
|---|---|---|---|
| Michelham Priory Road Bridge Downstream | 8 Nov 2024 | 8 Nov 2024 | 1 |
| Long Bridge | 10 Sept 2008 | 18 Sept 2024 | 7 |
| Sherman Bridge | 14 Oct 1999 | 11 Sept 2024 | 12 |
| Horselunges Bridge | 1 Sept 2004 | 28 Aug 2024 | 8 |
| Upstream Tumblers Gate | 27 Aug 2021 | 27 Aug 2021 | 1 |
| Sessingham Farm | 20 Sept 2007 | 20 Sept 2018 | 7 |
| Michelham Priory | 12 Oct 1999 | 19 Sept 2018 | 12 |
| Mill Bridge | 10 Sept 2013 | 10 Sept 2013 | 1 |
| Arlington Intake | 20 Jul 2000 | 22 Sept 2006 | 6 |
| Boship Bridge | 11 Oct 1999 | 11 Oct 1999 | 1 |
Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.
1999–2024
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 3,238 measured fish were spread across different length ranges.
- Smallest
- 2.3 cm
- Lower quarter
- 4.7 cm
- Median
- 9.8 cm
- Upper quarter
- 13.5 cm
- Largest
- 29.2 cm
Lengths are direct survey measurements rather than anglers’ catches.
Fish weighed by surveyors
Measured weight summary
Recorded weights were available for 887 roach. This is a subset of the measured fish and may not represent the whole population.
- Lightest
- 0 oz (0.001 kg)
- Lower quarter
- 0.2 oz (0.007 kg)
- Median
- 1 oz (0.027 kg)
- Upper quarter
- 1.8 oz (0.052 kg)
- Heaviest
- 10.9 oz (0.31 kg)
These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.
More fish in this river
Explore the River Cuckmere
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 →