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 |
|---|---|---|---|
| 59 cm | 26 Jul 2003 | Boston Spa | 78317 |
| 57.5 cm | 26 Jul 2001 | Tadcaster pre 2006 | 25609 |
| 54.6 cm | 26 Jul 2003 | Boston Spa | 78317 |
| 54.6 cm | 24 Jul 1996 | Tadcaster pre 2006 | 110436 |
| 54.4 cm | 23 Jul 1997 | Tadcaster pre 2006 | 110123 |
| 53.8 cm | 23 Jul 2003 | Tadcaster pre 2006 | 78325 |
| 53.6 cm | 9 Jul 2010 | Tadcaster post 2006 | 124961 |
| 53.2 cm | 8 Aug 2007 | Pool Mill | 109843 |
| 53.1 cm | 24 Jul 1996 | Tadcaster pre 2006 | 110436 |
| 53 cm | 9 Jul 2010 | Tadcaster post 2006 | 124961 |
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 |
|---|---|---|---|
| Pool Mill | 27 Jun 1996 | 22 Aug 2024 | 18 |
| Tadcaster post 2006 | 9 Aug 2006 | 20 Aug 2024 | 5 |
| Harewood | 14 Aug 2024 | 14 Aug 2024 | 1 |
| Boston Spa - Fry Survey | 24 Sept 1985 | 12 Aug 2024 | 27 |
| Netherby (discretionary only) | 26 Jul 2016 | 26 Jul 2016 | 1 |
| Ulleskelf | 25 Jul 1996 | 16 Jul 2014 | 13 |
| Knotford | 15 Aug 1996 | 1 Sept 2011 | 11 |
| Castley | 18 Jul 1996 | 8 Jul 2010 | 13 |
| Tadcaster pre 2006 | 24 Jul 1996 | 30 Jun 2005 | 8 |
| Wetherby Grange | 12 Aug 1997 | 28 Jun 2005 | 5 |
| Ryther | 20 Jul 2004 | 20 Jul 2004 | 1 |
| Burley Bypass | 30 Jul 1997 | 14 Jul 2004 | 2 |
| Ilkley | 1 Aug 1996 | 5 Aug 2003 | 5 |
| Nunnery | 7 Aug 1996 | 28 Jul 2003 | 7 |
| Boston Spa | 19 Jul 1996 | 26 Jul 2003 | 7 |
| Tadcaster - Fry Survey | 18 Sept 2001 | 18 Sept 2001 | 1 |
| Addingham | 8 Aug 1996 | 23 Jul 2001 | 3 |
| U/s Boston Spa Weir | 16 Sept 1998 | 16 Sept 1998 | 1 |
| Collingham | 26 Jul 1996 | 13 Aug 1998 | 3 |
Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.
1985–2024
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 4,254 measured fish were spread across different length ranges.
- Smallest
- 1.3 cm
- Lower quarter
- 3.3 cm
- Median
- 16.3 cm
- Upper quarter
- 36.4 cm
- Largest
- 59 cm
Lengths are direct survey measurements rather than anglers’ catches.
More fish in this river
Explore the River Wharfe
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 →