RiverFish

Dace · Leuciscus leuciscus

Dace in the River Lee

Largest measured dace: 28.7 cm

The largest dace measured in Environment Agency surveys of the River Lee was 28.7 cm, recorded at Essendon on 10 September 2004.

Across 6,190 measured dace, the median measured length was 14 cm.

Surveyors recorded one individual weight: 2.5 oz (0.072 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 Lee.

See dace records across England →

Most recent observation23 July 2026Amwell Loop · 9 fish
Largest measured dace
28.7 cm
Median length
14 cm
Fish measured
6,190
Survey locations
22

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
28.7 cm10 Sept 2004Essendon82050
28.6 cm30 Jul 2013Wheathampstead137540
27.5 cm30 Jul 2013Wheathampstead137540
27.2 cm18 Oct 2002Wheathampstead72672
27 cm9 Jun 2026Wheathampstead181612
26.6 cm9 Jun 2026Wheathampstead181612
26.5 cm1 Aug 2012Wheathampstead133929
26.5 cm17 Aug 2010Wheathampstead123475
26.3 cm2 Aug 2007Stanborough Park106262
26.3 cm2 Aug 2007Stanborough Park106262

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
Amwell Loop12 Apr 197823 Jul 202620
Wheathampstead18 Oct 20029 Jun 202621
Hackney Marshes29 Sept 200411 Sept 202510
Waterdale22 Oct 200231 Jul 202514
Red Spinners Bayford4 Aug 201717 Jul 20255
Stanborough Park10 Sept 200324 Jun 202513
Fishers Green6 Sept 197827 Jul 202318
Hartham Leisure centre24 Jun 201924 Jun 20191
Hartham Common Weir21 Jun 201821 Jun 20181
Hartham Common24 Oct 200221 Jun 201815
Fishers Green barbel investigation3 Nov 20173 Nov 20171
Kings Weir - Weirpool2 Jun 20152 Jun 20151
Kings Weir11 Jun 19922 Jun 20152
Kings Weir Back Loop14 May 201329 May 20142
Essendon11 Sept 200326 Jun 20139
Woolmers Park1 Nov 20029 Aug 20106
Waterend17 Apr 200817 Apr 20081
Bush hall27 Nov 200727 Nov 20071
Bayford15 Sept 200427 Oct 20062
Leasey Bridge - Batford Wier25 Oct 200625 Oct 20061
Walthamstow Resevoirs2 Mar 19932 Mar 19931
Water Hall Farm22 Mar 197822 Mar 19781

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

1978–2026

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 6,190 measured fish were spread across different length ranges.

Smallest
2 cm
Lower quarter
11 cm
Median
14 cm
Upper quarter
17.2 cm
Largest
28.7 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

One individual weight was recorded for this fish and river. This is a subset of the measured fish and may not represent the whole population.

Recorded weight
2.5 oz (0.072 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 Lee

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

Roach Perch Gudgeon Minnow Chub Pike

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 →