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 |
|---|---|---|---|
| 23.2 cm | 19 Jun 2015 | Chertsey Meads | 144992 |
| 20 cm | 29 Mar 2012 | Gogmore Park | 130944 |
| 19.9 cm | 17 Jul 2008 | Chertsey Meads | 111987 |
| 19.9 cm | 17 Jul 2008 | Chertsey Meads | 111987 |
| 18.1 cm | 24 Apr 2006 | Lyne Road Bridge | 90826 |
| 17.6 cm | 30 Jun 2011 | Chertsey Meads | 127144 |
| 17.4 cm | 19 Jun 2015 | Chertsey Meads | 144992 |
| 17 cm | 29 Mar 2012 | Gogmore Park | 130944 |
| 15.9 cm | 3 Jun 2014 | Virginia Water Station | 140943 |
| 15.2 cm | 19 Jun 2015 | Chertsey Meads | 144992 |
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 |
|---|---|---|---|
| Gogmore Park | 29 Mar 2012 | 19 Jun 2015 | 2 |
| Chertsey Meads | 19 Oct 1989 | 19 Jun 2015 | 6 |
| Virginia Water Station | 3 Jun 2014 | 3 Jun 2014 | 1 |
| Lyne Road Bridge | 12 Jun 2003 | 24 Apr 2006 | 2 |
Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.
1989–2015
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 100 measured fish were spread across different length ranges.
- Smallest
- 4.8 cm
- Lower quarter
- 8.4 cm
- Median
- 10.3 cm
- Upper quarter
- 12.7 cm
- Largest
- 23.2 cm
Lengths are direct survey measurements rather than anglers’ catches.
More fish in this river
Explore the Chertsey Bourne
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 →