Individual EA measurements
Largest measured chub
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 |
|---|---|---|---|
| 56 cm | 11 Jun 2013 | Trewint Street - Weir Road | 136475 |
| 55 cm | 11 Jun 2013 | Trewint Street - Weir Road | 136475 |
| 54.5 cm | 11 Jun 2013 | Trewint Street - Weir Road | 136475 |
| 52 cm | 22 Jun 2017 | Waterside Way | 150620 |
| 51.1 cm | 18 Jul 2017 | Ravensbury Park | 150961 |
| 50 cm | 22 Jun 2017 | Waterside Way | 150620 |
| 49 cm | 22 Jun 2017 | Waterside Way | 150620 |
| 48.8 cm | 25 Jun 2015 | Ravensbury Park | 145186 |
| 48.5 cm | 12 Jun 2013 | Waterside Way | 136474 |
| 48.5 cm | 11 Jun 2013 | Trewint Street - Weir Road | 136475 |
Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.
Explore the river
Where chub were found
Each point marks a survey location with at least one chub 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 chub |
|---|---|---|---|
| Mapleton Road | 18 Jun 2009 | 7 Oct 2025 | 4 |
| 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 | 8 |
| Watermeads Lane | 22 Jul 1988 | 3 Jul 2019 | 8 |
| Phipps Bridge | 12 Jun 2009 | 26 Jun 2019 | 3 |
| Hackbridge | 21 Jul 1988 | 20 Jun 2017 | 17 |
| Trewint Street - Weir Road | 15 Jun 2009 | 30 Jun 2015 | 4 |
| Downstream Beddington Park Lake | 14 Mar 2012 | 14 Mar 2012 | 1 |
| King George Park | 27 Jul 1988 | 9 Jun 2011 | 7 |
| Corbet Close | 22 Oct 2008 | 22 Oct 2008 | 1 |
| Wilderness Island | 22 Jul 1997 | 22 Jul 1997 | 1 |
| North road, Colliers Wood | 29 Mar 1994 | 17 Jul 1997 | 2 |
| Butterhill | 21 Jun 1989 | 21 Jun 1989 | 1 |
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 chub that year.
Fish measured by surveyors
Measured length distribution
See how the 1,278 measured fish were spread across different length ranges.
- Smallest
- 1.8 cm
- Lower quarter
- 14.7 cm
- Median
- 20 cm
- Upper quarter
- 26.4 cm
- Largest
- 56 cm
Lengths are direct survey measurements rather than anglers’ catches.
Fish weighed by surveyors
Measured weight summary
Recorded weights were available for 94 chub. This is a subset of the measured fish and may not represent the whole population.
- Lightest
- 0.5 oz (0.015 kg)
- Lower quarter
- 1.9 oz (0.055 kg)
- Median
- 2.5 oz (0.072 kg)
- Upper quarter
- 9 oz (0.2548 kg)
- Heaviest
- 2 lb 7.2 oz (1.11 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 →