Individual EA measurements
Largest measured tench
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 |
|---|---|---|---|
| 52.8 cm | 21 Aug 2000 | Denver Sluice | 30816 |
| 49.8 cm | 21 Aug 2000 | Denver Sluice | 30816 |
| 48.8 cm | 10 Sept 1996 | DS Downham Bridge | 30278 |
| 48.3 cm | 16 Sept 1996 | Denver Sluice | 30276 |
| 46.3 cm | 22 Aug 2000 | Downham Bridge | 30817 |
| 45.3 cm | 8 Sept 2000 | Magdalen Bridge | 30823 |
| 44.3 cm | 23 Aug 2000 | DS Downham Bridge | 30818 |
| 42.5 cm | 22 Aug 2000 | Downham Bridge | 30817 |
| 41.3 cm | 22 Aug 2000 | Downham Bridge | 30817 |
| 41.3 cm | 21 Aug 2000 | Denver Sluice | 30816 |
Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.
Explore the river
Where tench were found
Each point marks a survey location with at least one tench 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 tench |
|---|---|---|---|
| Wiggenhall Bridge | 15 Sept 1993 | 9 Aug 2017 | 4 |
| DS Stow Bridge | 9 Sept 1993 | 8 Aug 2017 | 5 |
| Denver Sluice | 14 Oct 1991 | 9 Jul 2014 | 6 |
| DS Denver Residual Sluice (Eel Monitoring) | 18 Jun 2014 | 18 Jun 2014 | 1 |
| DS Denver Sluice | 18 Aug 2008 | 9 Oct 2008 | 2 |
| Stow Bridge | 19 Aug 2008 | 19 Aug 2008 | 1 |
| Black Bank Dyke Sluice | 18 Aug 2008 | 18 Aug 2008 | 1 |
| Tail Sluice | 17 Sept 1993 | 24 Aug 2005 | 2 |
| Polver Farm Magdalen | 14 Sept 1993 | 17 Aug 2005 | 3 |
| Magdalen Bridge | 8 Oct 1991 | 16 Aug 2005 | 4 |
| Holme Farm Magdalen | 10 Sept 1993 | 15 Aug 2005 | 2 |
| Downham Market STW | 10 Aug 2005 | 10 Aug 2005 | 1 |
| Downham Bridge | 2 Sept 1993 | 9 Aug 2005 | 4 |
| DS Downham Bridge | 3 Sept 1993 | 5 Aug 2005 | 4 |
| Saddlebow Bridge | 10 Oct 1996 | 10 Oct 1996 | 1 |
Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.
1991–2017
Survey records by year
Each bar shows how many survey visits recorded tench that year.
Fish measured by surveyors
Measured length distribution
See how the 96 measured fish were spread across different length ranges.
- Smallest
- 2 cm
- Lower quarter
- 7.6 cm
- Median
- 9 cm
- Upper quarter
- 13 cm
- Largest
- 52.8 cm
Lengths are direct survey measurements rather than anglers’ catches.
More fish in this river
Explore the Relief Channel
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 →