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 |
|---|---|---|---|
| 41 cm | 5 Aug 1993 | Brooksby | 24969 |
| 37.6 cm | 26 Apr 2005 | Brooksby | 86799 |
| 34 cm | 11 Jul 2001 | Lewin Bridge | 25488 |
| 33.7 cm | 27 Apr 2006 | Brooksby | 90678 |
| 32.8 cm | 16 Jun 2004 | Brooksby | 80200 |
| 32.8 cm | 11 Jul 2001 | Lewin Bridge | 25488 |
| 32.5 cm | 16 Apr 2002 | Brooksby | 25917 |
| 32.5 cm | 16 Apr 2002 | Lewin Bridge | 25916 |
| 32.1 cm | 17 Apr 2015 | Crows Weir at Frisby Sailing Club | 145273 |
| 32 cm | 15 Apr 2010 | US Frisby Weir | 121367 |
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 |
|---|---|---|---|
| Syston Mills | 30 Jun 2004 | 20 Jun 2024 | 11 |
| Egerton Park | 4 Aug 1993 | 19 Jun 2024 | 14 |
| Crows Weir at Frisby Sailing Club | 19 Apr 2006 | 24 May 2018 | 7 |
| Brooksby | 5 Aug 1993 | 15 May 2018 | 12 |
| Sysonby | 17 Apr 2002 | 26 Apr 2018 | 11 |
| Thrussington | 24 Apr 2013 | 24 Apr 2013 | 1 |
| US Frisby Weir | 15 Apr 2010 | 15 Apr 2010 | 1 |
| Crows | 14 Nov 1990 | 25 Apr 2005 | 4 |
| Lewin Bridge | 6 Jul 1989 | 16 Apr 2002 | 4 |
Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.
1989–2024
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 759 measured fish were spread across different length ranges.
- Smallest
- 2 cm
- Lower quarter
- 9 cm
- Median
- 11.9 cm
- Upper quarter
- 15.9 cm
- Largest
- 41 cm
Lengths are direct survey measurements rather than anglers’ catches.
More fish in this river
Explore the River Wreake/Eye
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 →