Individual EA measurements
Largest measured european eel
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 |
|---|---|---|---|
| 80.2 cm | 7 Jun 2011 | Phipps Bridge | 126486 |
| 78.5 cm | 1 Oct 2025 | Sainsburys Merton | 180360 |
| 78.5 cm | 30 Sept 2025 | Ravensbury Park | 179535 |
| 77.5 cm | 30 Sept 2025 | Ravensbury Park | 179535 |
| 77.5 cm | 30 Sept 2025 | Ravensbury Park | 179535 |
| 77.5 cm | 14 Jun 2011 | Mapleton Road | 126505 |
| 75.6 cm | 3 Jul 2019 | Watermeads Lane | 154815 |
| 75.5 cm | 30 Sept 2025 | Ravensbury Park | 179535 |
| 75 cm | 21 Jun 1989 | Butterhill | 116821 |
| 74.3 cm | 30 Sept 2025 | Ravensbury Park | 179535 |
Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.
Explore the river
Where european eel were found
Each point marks a survey location with at least one european eel 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 european eel |
|---|---|---|---|
| Watermeads Lane | 1 Mar 1994 | 8 Oct 2025 | 8 |
| Hackbridge | 21 Jul 1988 | 8 Oct 2025 | 12 |
| Mapleton Road | 18 Jun 2009 | 7 Oct 2025 | 7 |
| Waterside Way | 15 Jun 2009 | 2 Oct 2025 | 7 |
| Sainsburys Merton | 12 Jun 2009 | 1 Oct 2025 | 7 |
| Ravensbury Park | 22 Jul 1988 | 30 Sept 2025 | 9 |
| Phipps Bridge | 12 Jun 2009 | 30 Sept 2025 | 7 |
| Butterhill | 21 Jun 1989 | 1 Jul 2021 | 7 |
| Mill Lane u/s Butterhill Brid Investigation Site 2 | 4 Jul 2019 | 4 Jul 2019 | 1 |
| Trewint Street - Weir Road | 15 Jun 2009 | 30 Jun 2015 | 4 |
| King George Park | 27 Jul 1988 | 11 Jun 2013 | 10 |
| Downstream Beddington Park Lake | 14 Mar 2012 | 14 Mar 2012 | 1 |
| Hackbridge Weir Pool | 22 Apr 2002 | 22 Apr 2002 | 1 |
| The Causeway, Wandsworth | 29 Jun 1994 | 29 Jun 1994 | 1 |
| North road, Colliers Wood | 27 Jul 1989 | 29 Mar 1994 | 2 |
Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.
1988–2025
Survey records by year
Each bar shows how many survey visits recorded european eel that year.
Fish measured by surveyors
Measured length distribution
See how the 3,971 measured fish were spread across different length ranges.
- Smallest
- 4.5 cm
- Lower quarter
- 28.5 cm
- Median
- 37 cm
- Upper quarter
- 45.5 cm
- Largest
- 80.2 cm
Lengths are direct survey measurements rather than anglers’ catches.
Fish weighed by surveyors
Measured weight summary
Recorded weights were available for 152 european eel. This is a subset of the measured fish and may not represent the whole population.
- Lightest
- 0.1 oz (0.003 kg)
- Lower quarter
- 1.4 oz (0.0392 kg)
- Median
- 2.3 oz (0.064 kg)
- Upper quarter
- 3.3 oz (0.0922 kg)
- Heaviest
- 2 lb 3 oz (0.993 kg)
These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.
More fish in this river
Explore the River Wandle
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 →