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 |
|---|---|---|---|
| 40.1 cm | 24 Jul 2024 | Doncaster (crimpsal) DON/CO/TEMP/003 | 165842 |
| 39.2 cm | 25 Jul 2008 | Below Sprotborough Weir DON/CO/TEMP/002 | 114168 |
| 38.2 cm | 26 Aug 2004 | Below Sprotborough Weir DON/CO/TEMP/002 | 83015 |
| 38.1 cm | 31 Jul 2025 | Kilnhurst Bridge | 177636 |
| 38 cm | 25 Mar 2004 | Grimethorpe Pond | 79499 |
| 37.2 cm | 17 Sept 2007 | Conisborough | 107951 |
| 37.2 cm | 17 Sept 2007 | Below Sprotborough Weir DON/CO/TEMP/002 | 107945 |
| 37.1 cm | 8 Jul 2013 | Firth Rixon | 140081 |
| 36.4 cm | 28 Jul 2010 | Doncaster (crimpsal) DON/CO/TEMP/003 | 123113 |
| 36.3 cm | 24 Jul 2024 | Doncaster (crimpsal) DON/CO/TEMP/003 | 165842 |
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 |
|---|---|---|---|
| Sprotborough - Fry Survey | 1 Oct 1998 | 12 Aug 2025 | 8 |
| Doncaster (crimpsal) DON/CO/TEMP/003 | 6 Dec 1990 | 4 Aug 2025 | 19 |
| Kilnhurst Bridge | 30 Jun 2005 | 31 Jul 2025 | 13 |
| Kilnhurst - Fry Survey | 11 Sept 2010 | 13 Aug 2024 | 2 |
| Blackburn Meadows d/s weir DON/CO/TEMP/001 | 17 Oct 1984 | 25 Jul 2024 | 20 |
| Wortley | 2 Sept 1981 | 29 Sept 2023 | 5 |
| Thorpe Marsh (Tidal) | 30 Jun 2011 | 16 Aug 2017 | 2 |
| Hexthorpe | 27 Jun 2005 | 2 Aug 2017 | 8 |
| Below Sprotborough Weir DON/CO/TEMP/002 | 16 Nov 1990 | 3 Jul 2017 | 16 |
| Blonk Street, sheffield | 30 Jul 2011 | 2 Oct 2014 | 4 |
| Effingham Street, sheffield | 26 Jul 2011 | 5 Sept 2014 | 4 |
| Firth Rixon | 8 Jul 2013 | 8 Jul 2013 | 1 |
| Nursery Street, Sheffield | 30 Jul 2011 | 2 Aug 2012 | 2 |
| Kelham Island (Channel 2) | 15 Jul 2011 | 2 Aug 2012 | 2 |
| Livesey Street - Owlerton, Sheffield | 16 Sept 2011 | 16 Sept 2011 | 1 |
| Oxspring Bridge (WR) | 23 Aug 2004 | 7 Sept 2011 | 3 |
| Conisborough | 26 Jul 2005 | 1 Jul 2011 | 7 |
| Kelham Island Museum | 11 Oct 2007 | 22 Jul 2009 | 3 |
| Dearne Valley Leisure Centre | 27 Jun 2005 | 29 Jul 2008 | 3 |
| Rotherham Road Bridge | 5 Aug 2006 | 5 Aug 2006 | 1 |
| Marsh Street P/S, Rotherham | 15 Nov 1990 | 1 Aug 2006 | 5 |
| Upstream Aldwarke Weir | 17 Oct 2005 | 17 Oct 2005 | 1 |
| Cheesebottom STW | 23 Aug 2005 | 23 Aug 2005 | 1 |
| Penistone Cricket Club | 19 Aug 2005 | 19 Aug 2005 | 1 |
| Attercliffe Road | 5 Aug 2005 | 5 Aug 2005 | 1 |
| Tesco Weir - Masbrough, Rotherham | 23 Jun 2005 | 23 Jun 2005 | 1 |
| Grimethorpe Pond | 25 Mar 2004 | 25 Mar 2004 | 1 |
| Below Blackburn Meadows (new site) | 12 Jul 2002 | 12 Jul 2002 | 1 |
| Stainforth | 23 Jul 1982 | 11 Nov 1997 | 3 |
| Beeley Wood, d/s weir | 16 Oct 1997 | 16 Oct 1997 | 1 |
| Smithfield House, Sheffield | 8 Dec 1987 | 10 Oct 1997 | 2 |
| Borough Bridge, Sheffield | 6 Oct 1997 | 6 Oct 1997 | 1 |
| Meadowhall | 8 Dec 1987 | 30 Sept 1997 | 3 |
| Below Aldwarke Weir | 26 Oct 1993 | 26 Oct 1993 | 1 |
| Thorpe Marsh PS | 31 Aug 1993 | 31 Aug 1993 | 1 |
| Stocksbridge STW US | 1 Nov 1990 | 1 Nov 1990 | 1 |
Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.
1981–2025
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 1,558 measured fish were spread across different length ranges.
- Smallest
- 2 cm
- Lower quarter
- 11 cm
- Median
- 15 cm
- Upper quarter
- 20 cm
- Largest
- 40.1 cm
Lengths are direct survey measurements rather than anglers’ catches.
More fish in this river
Explore the River Don
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 →