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 |
|---|---|---|---|
| 24.5 cm | 23 Jun 1993 | Downstream Hainbury Mill | 79863 |
| 12.7 cm | 23 Jun 2005 | Downstream Sherborne Lake (Te) | 84853 |
| 12.5 cm | 23 Jun 2005 | Downstream Sherborne Lake (Te) | 84853 |
| 12.4 cm | 29 Jun 1993 | Upstream Ashington Bridge | 79845 |
| 11.5 cm | 23 Jun 2005 | Downstream Sherborne Lake (Te) | 84853 |
| 10.8 cm | 23 Jun 2005 | Downstream Sherborne Lake (Te) | 84853 |
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 |
|---|---|---|---|
| Downstream Sherborne Lake (Te) | 23 Jun 2005 | 23 Jun 2005 | 1 |
| Upstream Ashington Bridge | 29 Jun 1993 | 29 Jun 1993 | 1 |
| Downstream Hainbury Mill | 23 Jun 1993 | 23 Jun 1993 | 1 |
Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.
1993–2005
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 6 measured fish were spread across different length ranges.
- Smallest
- 10.8 cm
- Lower quarter
- 11.7 cm
- Median
- 12.5 cm
- Upper quarter
- 12.7 cm
- Largest
- 24.5 cm
Lengths are direct survey measurements rather than anglers’ catches.
Fish weighed by surveyors
Measured weight summary
Recorded weights were available for 6 tench. This is a subset of the measured fish and may not represent the whole population.
- Lightest
- 0.7 oz (0.021 kg)
- Lower quarter
- 0.9 oz (0.0268 kg)
- Median
- 1.3 oz (0.036 kg)
- Upper quarter
- 1.3 oz (0.037 kg)
- Heaviest
- 12 oz (0.339 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 →