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 |
|---|---|---|---|
| 30 cm | 20 Mar 2019 | DS Narborough Mill | 154371 |
| 28.6 cm | 13 Mar 2017 | DS Narborough Mill | 150299 |
| 28.4 cm | 14 Mar 2017 | DS Marham Sluice | 150300 |
| 26.8 cm | 13 Mar 2017 | DS Narborough Mill | 150299 |
| 26.4 cm | 20 Mar 2019 | DS Narborough Mill | 154371 |
| 26.4 cm | 13 Mar 2017 | DS Narborough Mill | 150299 |
| 26.3 cm | 13 Mar 2017 | DS Narborough Mill | 150299 |
| 26.1 cm | 20 Mar 2019 | DS Narborough Mill | 154371 |
| 26.1 cm | 13 Mar 2017 | DS Narborough Mill | 150299 |
| 25.9 cm | 13 Mar 2017 | DS Narborough Mill | 150299 |
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 |
|---|---|---|---|
| DS Narborough Mill | 16 Feb 2011 | 1 Apr 2025 | 4 |
| DS Abbey Farm Weir (Eel Monitoring) | 23 Jul 2014 | 20 Mar 2017 | 2 |
| Abbey Farm | 16 Nov 1989 | 20 Mar 2017 | 4 |
| DS Marham Sluice | 14 Mar 2017 | 14 Mar 2017 | 1 |
| West Lexham | 9 Nov 1989 | 1 Mar 2017 | 5 |
| Setchey | 11 Jan 1990 | 17 Mar 2015 | 6 |
| Wormegay High Bridge | 8 Nov 1989 | 12 Mar 2015 | 6 |
| High Bridge Side Channel | 17 Nov 1989 | 12 Mar 2015 | 5 |
| East Lexham | 11 Mar 2003 | 12 Mar 2012 | 3 |
| Saddlebow | 26 Mar 1993 | 19 Apr 2010 | 3 |
| US Sluice Kings Lynn | 12 Jan 1990 | 15 Apr 2010 | 3 |
| Marham Intake | 15 Nov 1989 | 12 Apr 2010 | 2 |
| Nar Valley Fishery | 3 Apr 1996 | 3 Apr 1996 | 1 |
| Warren Farm | 12 Mar 1993 | 12 Mar 1993 | 1 |
| Narford Hall Estate | 19 Jan 1990 | 19 Jan 1990 | 1 |
Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.
1989–2025
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 754 measured fish were spread across different length ranges.
- Smallest
- 3.8 cm
- Lower quarter
- 7.3 cm
- Median
- 11.8 cm
- Upper quarter
- 16.8 cm
- Largest
- 30 cm
Lengths are direct survey measurements rather than anglers’ catches.
More fish in this river
Explore the River Nar
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 →