RiverFish

Dace · Leuciscus leuciscus

Dace in the River Blackwater

Largest measured dace: 24 cm

The largest dace measured in Environment Agency surveys of the River Blackwater was 24 cm, recorded at Broadlands Fishery on 29 September 2023.

Across 77 measured dace, the median measured length was 16 cm.

Surveyors recorded weights for 9 dace. The median was 1.7 oz (0.048 kg) and the largest recorded weight was 3.5 oz (0.098 kg).

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the River Blackwater.

See dace records across England →

Most recent observation16 September 2025Broadlands Fishery · 1 fish
Largest measured dace
24 cm
Median length
16 cm
Fish measured
77
Survey locations
6

Individual EA measurements

Largest measured dace

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
24 cm29 Sept 2023Broadlands Fishery163441
23.5 cm19 Sept 2024Broadlands Fishery167854
23.2 cm19 Sept 2024Broadlands Fishery167854
22.8 cm29 Sept 2023Broadlands Fishery163441
22.5 cm19 Sept 2024Broadlands Fishery167854
22.5 cm29 Sept 2023Broadlands Fishery163441
21.5 cm31 Jul 2012Lower Bridge Farm132550
21 cm19 Sept 2024Broadlands Fishery167854
21 cm29 Sept 2023Broadlands Fishery163441
20.9 cm20 Sept 2011Broadlands Fishery128015

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 surveyedFirst recordedLast recordedVisits finding dace
Broadlands Fishery20 Sept 201116 Sept 20258
Lower Bridge Farm31 Jul 201231 Jul 20121
Upper Whinwhistle20 Sept 201120 Sept 20111
Lower Whinwhistle28 Jul 201128 Jul 20111
Wade Bridge30 Aug 200630 Aug 20061
Hammonds Farm6 Sept 20046 Sept 20041

Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.

2004–2025

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 77 measured fish were spread across different length ranges.

Smallest
6.1 cm
Lower quarter
13 cm
Median
16 cm
Upper quarter
18.8 cm
Largest
24 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 9 dace. This is a subset of the measured fish and may not represent the whole population.

Lightest
0.5 oz (0.015 kg)
Lower quarter
0.8 oz (0.024 kg)
Median
1.7 oz (0.048 kg)
Upper quarter
2.4 oz (0.068 kg)
Heaviest
3.5 oz (0.098 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 Blackwater

Compare other species with enough survey and measurement data for a detailed page.

Roach Bullhead European eel Brown / sea trout Stone loach Gudgeon

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 →