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 |
|---|---|---|---|
| 14.5 cm | 10 Jul 2013 | Mudford | 137142 |
| 14.5 cm | 27 Jul 1993 | Upstream Lake Borehole | 79815 |
| 14.2 cm | 28 Jul 1993 | Honeycombe Farm | 79801 |
| 14.1 cm | 4 Jun 2003 | Bradford Abbas (Te) | 76073 |
| 14 cm | 28 Jul 1993 | Honeycombe Farm | 79801 |
| 14 cm | 23 Jul 1993 | Bradford Abbas (Te) | 79816 |
| 14 cm | 20 Jul 1993 | Downstream Pen Mill Gauging Station | 79838 |
| 13.7 cm | 20 Jul 2010 | Yeovil Bridge (Te) | 123032 |
| 13.6 cm | 20 Jul 1993 | Downstream Pen Mill Gauging Station | 79838 |
| 13.5 cm | 12 Jul 2007 | Downstream Sherborne Lake (Te) | 105887 |
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 |
|---|---|---|---|
| Up Mudford Investigation Site | 16 Aug 2005 | 30 Jul 2015 | 3 |
| Mudford | 20 Jun 2007 | 10 Jul 2013 | 2 |
| Yeovil Bridge (Te) | 5 Aug 2003 | 20 Jul 2010 | 7 |
| Pibsbury Pumping Station (Te) | 8 Jun 2004 | 8 Jul 2010 | 5 |
| Downstream Sherborne Lake (Te) | 4 Jun 2003 | 12 Jul 2007 | 4 |
| Gas Works d/s Ilchester (Te) | 18 Oct 2006 | 18 Oct 2006 | 1 |
| Clifton Maybank (Te) | 25 Aug 2004 | 25 Aug 2004 | 1 |
| Bradford Abbas (Te) | 23 Jul 1993 | 4 Jun 2003 | 2 |
| Upstream confl. Sherborne Lake Stream | 29 Jul 1993 | 29 Jul 1993 | 1 |
| Honeycombe Farm | 28 Jul 1993 | 28 Jul 1993 | 1 |
| Upstream Lake Borehole | 27 Jul 1993 | 27 Jul 1993 | 1 |
| Downstream Pen Mill Gauging Station | 20 Jul 1993 | 20 Jul 1993 | 1 |
| Over Compton | 13 Jul 1993 | 13 Jul 1993 | 1 |
| Up Mudford | 8 Jul 1993 | 8 Jul 1993 | 1 |
| Downstream Yeovilton Weir | 6 Jul 1993 | 6 Jul 1993 | 1 |
| Witcomb Drove | 30 Jun 1993 | 30 Jun 1993 | 1 |
| Upstream Ashington Bridge | 29 Jun 1993 | 29 Jun 1993 | 1 |
| Manor Farm, Ashington | 24 Jun 1993 | 24 Jun 1993 | 1 |
| Great Yard, Ilchester | 22 Jun 1993 | 22 Jun 1993 | 1 |
| Downstream Load Bridge | 10 Jun 1993 | 10 Jun 1993 | 1 |
| Downstream Ablake | 8 Jun 1993 | 8 Jun 1993 | 1 |
| Upstream Yeovilton Weir | 14 May 1993 | 14 May 1993 | 1 |
| Upstream Ablake | 12 May 1993 | 12 May 1993 | 1 |
| Upstream Pill Bridge | 5 May 1993 | 5 May 1993 | 1 |
Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.
1993–2015
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 539 measured fish were spread across different length ranges.
- Smallest
- 1 cm
- Lower quarter
- 7.2 cm
- Median
- 9.1 cm
- Upper quarter
- 10.8 cm
- Largest
- 14.5 cm
Lengths are direct survey measurements rather than anglers’ catches.
Fish weighed by surveyors
Measured weight summary
Recorded weights were available for 371 gudgeon. This is a subset of the measured fish and may not represent the whole population.
- Lightest
- 0 oz (0.001 kg)
- Lower quarter
- 0.3 oz (0.008 kg)
- Median
- 0.4 oz (0.012 kg)
- Upper quarter
- 0.6 oz (0.018 kg)
- Heaviest
- 1.4 oz (0.041 kg)
These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.
More fish in this river
Explore the Main River Yeo
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 →