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 |
|---|---|---|---|
| 25.9 cm | 7 Aug 2013 | Clayton Street, Chesterfield | 140248 |
| 23.5 cm | 2 Sept 2014 | A617 Road Bridge Chesterfield | 142822 |
| 19.2 cm | 7 Aug 2013 | Clayton Street, Chesterfield | 140248 |
| 18 cm | 2 Sept 2014 | Clayton Street, Chesterfield | 142806 |
| 17.3 cm | 7 Aug 2013 | Clayton Street, Chesterfield | 140248 |
| 15.5 cm | 2 Sept 2014 | Clayton Street, Chesterfield | 142806 |
| 15.1 cm | 2 Sept 2014 | Downstream Weir, Chesterfield | 142824 |
| 14.5 cm | 7 Aug 2013 | Clayton Street, Chesterfield | 140248 |
| 14.2 cm | 2 Sept 2014 | Downstream Weir, Chesterfield | 142824 |
| 14 cm | 2 Sept 2014 | Clayton Street, Chesterfield | 142806 |
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 |
|---|---|---|---|
| Downstream Weir, Chesterfield | 2 Sept 2014 | 2 Sept 2014 | 1 |
| Clayton Street, Chesterfield | 7 Aug 2013 | 2 Sept 2014 | 2 |
| A617 Road Bridge Chesterfield | 2 Sept 2014 | 2 Sept 2014 | 1 |
| River Hipper, Somersall Park | 1 Aug 2003 | 25 Aug 2010 | 2 |
| River Hipper, Playing Fields | 1 Aug 2003 | 1 Aug 2003 | 1 |
Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.
2003–2014
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 26 measured fish were spread across different length ranges.
- Smallest
- 3.9 cm
- Lower quarter
- 4.8 cm
- Median
- 9.4 cm
- Upper quarter
- 15 cm
- Largest
- 25.9 cm
Lengths are direct survey measurements rather than anglers’ catches.
More fish in this river
Explore the River Hipper
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 →