RiverFish

Dace · Leuciscus leuciscus

Dace in the River Medway

Largest measured dace: 28.5 cm

The largest dace measured in Environment Agency surveys of the River Medway was 28.5 cm, recorded at Bewleys Weir on 19 September 2006.

Across 1,616 measured dace, the median measured length was 8.3 cm.

Surveyors recorded weights for 43 dace. The median was 1.6 oz (0.044 kg) and the largest recorded weight was 7.3 oz (0.208 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 Medway.

See dace records across England →

Most recent observation16 October 2025Penshurst · 8 fish
Largest measured dace
28.5 cm
Median length
8.3 cm
Fish measured
1,616
Survey locations
17

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
28.5 cm19 Sept 2006Bewleys Weir103377
26.8 cm10 Aug 2004D/s Ashurst Road Bridge82696
26.6 cm15 Jul 2005D/s Ashurst Road Bridge87534
26 cm15 Jul 2005D/s Ashurst Road Bridge87534
25.5 cm10 Aug 2004D/s Ashurst Road Bridge82696
25 cm10 Aug 2004D/s Ashurst Road Bridge82696
24.3 cm8 Sept 2006D/s Ashurst Road Bridge103367
24.2 cm8 Sept 2006D/s Ashurst Road Bridge103367
24 cm19 Sept 2006Bewleys Weir103377
23.5 cm18 Aug 2003D/s Ashurst Road Bridge77759

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
Penshurst22 Nov 200116 Oct 202522
Fordcombe15 Aug 200315 Oct 202519
D/s Weirwood Reservoir19 Oct 20059 Sept 20257
D/s Ashurst Road Bridge29 Jul 200218 Sept 202416
Sovereign Way Tonbridge1 Sept 201010 Sept 202413
Golden Green24 Jun 201022 Aug 20243
Maidstone Juvenile Fish Seine Netting Survey8 Aug 201620 Aug 20245
Tonbridge Juvenile Fish Seine Netting Survey21 Aug 201530 Aug 20234
Hartfield3 Aug 201010 Aug 202310
Yalding Leas30 Jul 200819 Jul 20232
Tovil16 Nov 200618 Jul 20237
Teston18 Aug 20097 Sept 20224
Hampstead Lock Juvenile Fish Seine Netting Survey15 Jun 201817 Aug 20182
Tonbridge Juvenile Fish Kick Sampling Survey15 Jun 201815 Jun 20181
Yalding Juvenile Fish Seine Netting Survey21 Jun 20134 Jul 20165
East Farleigh29 Jul 201429 Jul 20141
Bewleys Weir23 Sept 20023 Sept 20098

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

2001–2025

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 1,616 measured fish were spread across different length ranges.

Smallest
1.5 cm
Lower quarter
5.7 cm
Median
8.3 cm
Upper quarter
12.3 cm
Largest
28.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 43 dace. This is a subset of the measured fish and may not represent the whole population.

Lightest
0.6 oz (0.016 kg)
Lower quarter
1.1 oz (0.0305 kg)
Median
1.6 oz (0.044 kg)
Upper quarter
2.3 oz (0.065 kg)
Heaviest
7.3 oz (0.208 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 Medway

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

Chub Gudgeon Roach Perch Bleak Minnow

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 →