RiverFish

Dace · Leuciscus leuciscus

Dace in the River Wandle

Largest measured dace: 26.6 cm

The largest dace measured in Environment Agency surveys of the River Wandle was 26.6 cm, recorded at Sainsburys Merton on 8 June 2011.

Across 1,255 measured dace, the median measured length was 17.7 cm.

Surveyors recorded weights for 273 dace. The median was 4 oz (0.112 kg) and the largest recorded weight was 9.6 oz (0.271 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 Wandle.

See dace records across England →

Most recent observation7 October 2025Mapleton Road · 8 fish
Largest measured dace
26.6 cm
Median length
17.7 cm
Fish measured
1,255
Survey locations
14

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
26.6 cm8 Jun 2011Sainsburys Merton126483
26.5 cm5 Jul 2017Sainsburys Merton150962
26.4 cm12 Jun 2013Sainsburys Merton136476
26.2 cm5 Jul 2017Sainsburys Merton150962
26.1 cm1 Mar 1994Watermeads Lane116868
25.9 cm22 Apr 2002Hackbridge73758
25.7 cm5 Jul 2017Sainsburys Merton150962
25.7 cm12 Jun 2009Sainsburys Merton117520
25.6 cm1 Jul 2015Sainsburys Merton145446
25.6 cm8 Jun 2011Sainsburys Merton126483

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
Mapleton Road18 Jun 20097 Oct 20257
Watermeads Lane1 Mar 19943 Jul 20196
Ravensbury Park22 Jul 19882 Jul 20195
Sainsburys Merton12 Jun 200926 Jun 20196
Phipps Bridge7 Jun 201126 Jun 20192
Hackbridge21 Jul 198825 Jun 201915
Waterside Way15 Jun 200922 Jul 20154
King George Park27 Jul 198811 Jun 20139
Trewint Street - Weir Road15 Jun 20099 Jun 20112
Hackbridge Weir Pool22 Apr 200222 Apr 20021
Wilderness Island22 Jul 199722 Jul 19971
North road, Colliers Wood27 Jul 198917 Jul 19973
The Causeway, Wandsworth29 Jun 199429 Jun 19941
Butterhill21 Jun 19893 Mar 19942

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

1988–2025

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 1,255 measured fish were spread across different length ranges.

Smallest
5.2 cm
Lower quarter
13.8 cm
Median
17.7 cm
Upper quarter
20.9 cm
Largest
26.6 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 273 dace. This is a subset of the measured fish and may not represent the whole population.

Lightest
0.1 oz (0.004 kg)
Lower quarter
2.7 oz (0.076 kg)
Median
4 oz (0.112 kg)
Upper quarter
5.4 oz (0.153 kg)
Heaviest
9.6 oz (0.271 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 Wandle

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

3-spined stickleback Stone loach European eel Chub Roach Bullhead

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 →