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 |
|---|---|---|---|
| 16.7 cm | 28 Jun 1994 | Go13 | 56012 |
| 16 cm | 27 Jul 2005 | Gygo25 | 87677 |
| 16 cm | 29 Jul 2002 | Gygo20 | 64140 |
| 15.7 cm | 29 Jul 2004 | Gygo25 | 80831 |
| 15.7 cm | 29 Jul 2004 | Gygo25 | 80831 |
| 15.6 cm | 29 Jul 2004 | Gygo25 | 80831 |
| 15.6 cm | 6 Jul 2004 | Gygo30 | 80943 |
| 15.3 cm | 28 Jun 1994 | Go13 | 56012 |
| 15.3 cm | 28 Jun 1994 | Go13 | 56012 |
| 15.2 cm | 28 Jun 1994 | Go13 | 56012 |
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 |
|---|---|---|---|
| Gygo25 | 29 Jul 2004 | 10 Sept 2025 | 3 |
| Gygo10 | 15 Sept 1998 | 28 Jun 2010 | 2 |
| Gygo30 | 25 Jun 2003 | 18 Aug 2005 | 3 |
| Gygo20 | 28 Jun 1994 | 8 Aug 2005 | 5 |
| Go13 | 28 Jun 1994 | 29 Jan 1998 | 2 |
| Gygo15 | 18 Jul 1994 | 18 Jul 1994 | 1 |
Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.
1994–2025
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 245 measured fish were spread across different length ranges.
- Smallest
- 2.7 cm
- Lower quarter
- 4.3 cm
- Median
- 10.5 cm
- Upper quarter
- 11.7 cm
- Largest
- 16.7 cm
Lengths are direct survey measurements rather than anglers’ catches.
More fish in this river
Explore the River Goyt
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 →