Individual EA measurements
Largest measured dace
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 |
|---|---|---|---|
| 20.8 cm | 29 Sept 2009 | Andrew's Stream | 119183 |
| 20.4 cm | 29 Sept 2009 | Andrew's Stream | 119183 |
| 19.9 cm | 20 Sept 2023 | Shell Brook d/s Ardingly Reservoir | 163802 |
| 19.8 cm | 29 Sept 2009 | Andrew's Stream | 119183 |
| 19.7 cm | 20 Sept 2023 | Shell Brook d/s Ardingly Reservoir | 163802 |
| 19.6 cm | 20 Sept 2023 | Shell Brook d/s Ardingly Reservoir | 163802 |
| 19.5 cm | 22 Aug 2003 | North End | 77002 |
| 19.5 cm | 22 Aug 2003 | North End | 77002 |
| 19.1 cm | 29 Sept 2009 | Andrew's Stream | 119183 |
| 18.8 cm | 29 Sept 2009 | Andrew's Stream | 119183 |
Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.
Explore the river
Where dace were found
Each point marks a survey location with at least one dace 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 dace |
|---|---|---|---|
| Shell Brook d/s Ardingly Reservoir | 24 Aug 2021 | 20 Sept 2023 | 2 |
| Pellingford Brook | 26 Aug 2003 | 15 Aug 2013 | 2 |
| North End | 22 Aug 2003 | 6 Aug 2013 | 2 |
| Balcombe/Lower Lodge Gill | 15 Jul 2011 | 15 Jul 2011 | 1 |
| Sheffield Bluebell Railway Station Stream | 27 Oct 2009 | 27 Oct 2009 | 1 |
| Andrew's Stream | 29 Sept 2009 | 29 Sept 2009 | 1 |
Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.
2003–2023
Survey records by year
Each bar shows how many survey visits recorded dace that year.
Fish measured by surveyors
Measured length distribution
See how the 207 measured fish were spread across different length ranges.
- Smallest
- 4.5 cm
- Lower quarter
- 11.9 cm
- Median
- 15.6 cm
- Upper quarter
- 17.2 cm
- Largest
- 20.8 cm
Lengths are direct survey measurements rather than anglers’ catches.
Fish weighed by surveyors
Measured weight summary
Recorded weights were available for 24 dace. This is a subset of the measured fish and may not represent the whole population.
- Lightest
- 0 oz (0.001 kg)
- Lower quarter
- 1.1 oz (0.03 kg)
- Median
- 1.8 oz (0.0515 kg)
- Upper quarter
- 2.6 oz (0.073 kg)
- Heaviest
- 3.5 oz (0.1 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 Ouse Tributaries
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 →