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 |
|---|---|---|---|
| 34.2 cm | 12 May 2000 | Church Warsop | 23673 |
| 30.5 cm | 5 Sept 2019 | Bothamsall | 155299 |
| 30 cm | 12 May 2000 | Church Warsop | 23673 |
| 29.7 cm | 23 Oct 1996 | Church Warsop | 23876 |
| 29.4 cm | 12 May 2000 | Church Warsop | 23673 |
| 28.2 cm | 23 Oct 1996 | Church Warsop | 23876 |
| 27.9 cm | 12 May 2000 | Church Warsop | 23673 |
| 26.2 cm | 26 Jun 2012 | DS Bothamsall (DS Pre-barrage) | 131630 |
| 26.2 cm | 12 May 2000 | Church Warsop | 23673 |
| 26.1 cm | 22 Jan 1992 | Budby | 25112 |
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 |
|---|---|---|---|
| Bothamsall | 17 May 2016 | 24 Sept 2025 | 4 |
| Perlethorpe Gauging Weir | 19 May 2011 | 23 May 2013 | 2 |
| DS Bothamsall (DS Pre-barrage) | 26 Jun 2012 | 26 Jun 2012 | 1 |
| Meden Vale | 10 Oct 1995 | 3 Jun 2010 | 7 |
| Thoresby | 27 May 2009 | 27 May 2009 | 1 |
| Budby | 22 Jan 1992 | 15 Jul 2004 | 5 |
| Church Warsop | 5 Feb 1992 | 8 Jul 2003 | 4 |
Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.
1992–2025
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 139 measured fish were spread across different length ranges.
- Smallest
- 2.4 cm
- Lower quarter
- 8.1 cm
- Median
- 10.4 cm
- Upper quarter
- 15.1 cm
- Largest
- 34.2 cm
Lengths are direct survey measurements rather than anglers’ catches.
Fish weighed by surveyors
Measured weight summary
One individual weight was recorded for this fish and river. This is a subset of the measured fish and may not represent the whole population.
- Recorded weight
- 10 oz (0.283 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 Meden
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 →