Individual EA measurements
Largest measured perch
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 |
|---|---|---|---|
| 48.5 cm | 19 Apr 2004 | Minster Lovell | 81305 |
| 41.1 cm | 22 Sept 2011 | Minster Lovell | 129654 |
| 40.5 cm | 8 Sept 2010 | Minster Lovell | 125298 |
| 40.3 cm | 24 Sept 2013 | Minster Lovell | 138888 |
| 40 cm | 19 Sept 2012 | Minster Lovell | 133830 |
| 39.4 cm | 19 Apr 2004 | Minster Lovell | 81305 |
| 39 cm | 1 Apr 2003 | Minster Lovell | 76638 |
| 39 cm | 12 Mar 2002 | Minster Lovell | 73276 |
| 37.8 cm | 22 Sept 2011 | Minster Lovell | 129654 |
| 37.5 cm | 4 Oct 2007 | Minster Lovell | 107100 |
Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.
Explore the river
Where perch were found
Each point marks a survey location with at least one perch 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 perch |
|---|---|---|---|
| Medley Brook | 13 Mar 2002 | 4 Oct 2023 | 8 |
| D/s Beard Mill, East Arm | 26 Sept 2002 | 4 Oct 2023 | 10 |
| West Arm at Cokethorpe | 22 Mar 2002 | 12 Sept 2023 | 11 |
| East Arm at Cokethorpe | 16 Sept 2014 | 12 Sept 2023 | 3 |
| Emma's dyke down stream of colwell Brook | 8 Sept 2006 | 24 Aug 2023 | 3 |
| New Mill Mill stream | 18 May 2023 | 18 May 2023 | 1 |
| New Bridge (Gt Rissington) | 26 Sept 2002 | 9 Sept 2019 | 12 |
| Minster Lovell | 12 Mar 2002 | 12 Sept 2017 | 18 |
| Worsham | 15 Mar 2002 | 23 Sept 2009 | 12 |
| Standlake STW | 22 Sept 2004 | 20 Sept 2006 | 2 |
| Lower Upton Farm | 25 Sept 2002 | 5 Oct 2005 | 4 |
Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.
2002–2023
Survey records by year
Each bar shows how many survey visits recorded perch that year.
Fish measured by surveyors
Measured length distribution
See how the 649 measured fish were spread across different length ranges.
- Smallest
- 4.9 cm
- Lower quarter
- 8.9 cm
- Median
- 13.5 cm
- Upper quarter
- 19 cm
- Largest
- 48.5 cm
Lengths are direct survey measurements rather than anglers’ catches.
Fish weighed by surveyors
Measured weight summary
Recorded weights were available for 41 perch. This is a subset of the measured fish and may not represent the whole population.
- Lightest
- 0.2 oz (0.006 kg)
- Lower quarter
- 1.3 oz (0.038 kg)
- Median
- 2.6 oz (0.075 kg)
- Upper quarter
- 4.6 oz (0.13 kg)
- Heaviest
- 1 lb 12.9 oz (0.818 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 Windrush
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 →