Individual EA measurements
Largest measured gudgeon
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 |
|---|---|---|---|
| 13.6 cm | 4 Jun 1990 | Hall Lane Stickney | 58220 |
| 13.2 cm | 5 Jun 1990 | Hagnaby Lock | 58221 |
| 12.6 cm | 4 Jun 1990 | Hall Lane Stickney | 58220 |
| 12.2 cm | 11 May 2000 | Hagnaby Lock | 59012 |
| 12.1 cm | 5 Jun 1990 | Hagnaby Lock | 58221 |
| 11.8 cm | 5 Jun 1990 | Hagnaby Lock | 58221 |
| 11.8 cm | 2 Dec 1987 | Hall Lane Stickney | 58204 |
| 11.6 cm | 1 Oct 2003 | West Houses | 78762 |
| 11.6 cm | 1 Oct 2003 | West Houses | 78762 |
| 11.6 cm | 19 Apr 1993 | Hagnaby Lock | 58232 |
Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.
Explore the river
Where gudgeon were found
Each point marks a survey location with at least one gudgeon 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 gudgeon |
|---|---|---|---|
| West Houses | 6 May 1987 | 8 Jun 2009 | 13 |
| Hagnaby Lock | 5 May 1987 | 18 May 2006 | 8 |
| Hall Lane Stickney | 2 Dec 1987 | 12 May 2000 | 4 |
| Revesby Bridge | 7 May 1987 | 15 Apr 1993 | 3 |
| Tumby Woodside | 14 Apr 1993 | 14 Apr 1993 | 1 |
| Mareham-Le-Fen | 21 May 1987 | 14 Apr 1993 | 2 |
Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.
1987–2009
Survey records by year
Each bar shows how many survey visits recorded gudgeon that year.
Fish measured by surveyors
Measured length distribution
See how the 612 measured fish were spread across different length ranges.
- Smallest
- 3.6 cm
- Lower quarter
- 7 cm
- Median
- 8.1 cm
- Upper quarter
- 9.2 cm
- Largest
- 13.6 cm
Lengths are direct survey measurements rather than anglers’ catches.
More fish in this river
Explore the River West Fen Catchwater
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 →