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 |
|---|---|---|---|
| 32.1 cm | 25 Apr 2019 | Littlebury | 154481 |
| 32.1 cm | 25 Apr 2019 | Littlebury | 154481 |
| 31.8 cm | 9 Dec 1996 | Hinxton | 29473 |
| 31.3 cm | 9 Dec 1996 | Hinxton | 29473 |
| 31.3 cm | 9 Dec 1996 | Hinxton | 29473 |
| 30.8 cm | 12 Dec 1996 | Gt Chesterford | 29472 |
| 30.8 cm | 29 Apr 1991 | Gt Chesterford | 29456 |
| 30.8 cm | 29 Apr 1991 | Gt Chesterford | 29456 |
| 30.3 cm | 12 Dec 1996 | Gt Chesterford | 29472 |
| 29.3 cm | 18 Feb 1998 | Hinxton | 29478 |
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 |
|---|---|---|---|
| P.B.I (Trumpington Meadows) | 7 May 1991 | 19 Mar 2025 | 10 |
| Littlebury | 26 Apr 1991 | 25 Apr 2019 | 5 |
| Audley End | 24 Sept 2015 | 24 Sept 2015 | 1 |
| Hinxton | 24 Sept 1993 | 3 Jul 2013 | 5 |
| Byron's Pool Bypass Channel | 4 Apr 2011 | 9 May 2011 | 2 |
| Hauxton Junction | 11 Nov 2010 | 11 Nov 2010 | 1 |
| Hauxton Mill Bridge | 17 Sept 2008 | 17 Sept 2008 | 1 |
| Dernford Weir | 19 Oct 2002 | 19 Oct 2002 | 1 |
| Shelford Mill | 18 Oct 2002 | 18 Oct 2002 | 1 |
| Gt Chesterford | 29 Apr 1991 | 12 Dec 1996 | 3 |
| Pampisford Mill | 29 Sept 1993 | 29 Sept 1993 | 1 |
| Rectory Farm | 21 Sept 1993 | 21 Sept 1993 | 1 |
Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.
1991–2025
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 271 measured fish were spread across different length ranges.
- Smallest
- 6.5 cm
- Lower quarter
- 11.8 cm
- Median
- 14.3 cm
- Upper quarter
- 20.6 cm
- Largest
- 32.1 cm
Lengths are direct survey measurements rather than anglers’ catches.
More fish in this river
Explore the River US Cam
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 →