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 |
|---|---|---|---|
| 39.3 cm | 15 Oct 2013 | Stratfield Saye | 139600 |
| 38.1 cm | 3 Apr 2013 | Lower Stanford End | 135823 |
| 37.7 cm | 15 Oct 2013 | Stratfield Saye | 139600 |
| 37.4 cm | 29 Apr 2008 | Lower Stanford End | 110854 |
| 36 cm | 12 May 2004 | Lower Stanford End | 79847 |
| 35.8 cm | 2 Apr 2025 | Upper Stanford End | 176170 |
| 35.5 cm | 26 Apr 2007 | Lower Stanford End | 105200 |
| 34.7 cm | 26 Apr 2006 | Lower Stanford End | 90829 |
| 33.6 cm | 3 May 2005 | Lower Stanford End | 84490 |
| 33 cm | 3 Apr 2013 | Lower Stanford End | 135823 |
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 |
|---|---|---|---|
| Sheepbridge | 25 Apr 2008 | 14 Apr 2026 | 4 |
| Twyford RH channel Downstream | 25 Apr 2019 | 1 May 2025 | 2 |
| Upper Stanford End | 2 Apr 2025 | 2 Apr 2025 | 1 |
| Twyford LH Channel | 11 Dec 1991 | 25 Apr 2019 | 12 |
| Stratfield Saye | 15 Oct 2013 | 12 Oct 2016 | 2 |
| Lower Stanford End | 12 May 2004 | 3 Apr 2013 | 8 |
| Twyford RH Channel | 6 Dec 1991 | 14 Apr 2010 | 8 |
| Whistley Mill | 14 Jan 1992 | 15 Apr 2003 | 3 |
| Sindlesham Back Stream | 16 May 1992 | 16 May 1992 | 1 |
| Sindlesham Mill | 9 Jan 1992 | 9 Jan 1992 | 1 |
| Dinton Pastures | 7 Jan 1992 | 7 Jan 1992 | 1 |
| Priory Farm, Swallowfield | 22 May 1991 | 22 May 1991 | 1 |
| Stanford End | 23 Apr 1991 | 23 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.
1991–2026
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 246 measured fish were spread across different length ranges.
- Smallest
- 5.1 cm
- Lower quarter
- 8.8 cm
- Median
- 11.6 cm
- Upper quarter
- 14.4 cm
- Largest
- 39.3 cm
Lengths are direct survey measurements rather than anglers’ catches.
More fish in this river
Explore the River Loddon
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 →