RiverFish

Dace · Leuciscus leuciscus

Dace in the Stort Navigation

Largest measured dace: 21.5 cm

The largest dace measured in Environment Agency surveys of the Stort Navigation was 21.5 cm, recorded at Sheering Mill Lock CPUE on 21 August 2025.

Across 17 measured dace, the median measured length was 11.6 cm.

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

See dace records across England →

Most recent observation9 September 2025u/s Hunsdon Mill Lock · 5 fish
Largest measured dace
21.5 cm
Median length
11.6 cm
Fish measured
17
Survey locations
3

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
21.5 cm21 Aug 2025Sheering Mill Lock CPUE178037
16.9 cm9 Sept 2025u/s Hunsdon Mill Lock178395
16.9 cm9 Sept 2025u/s Hunsdon Mill Lock178395
15.2 cm9 Sept 2025u/s Hunsdon Mill Lock178395
14.2 cm21 Aug 2025Sheering Mill Lock CPUE178037
14.1 cm21 Aug 2025Sheering Mill Lock CPUE178037
12.6 cm21 Aug 2025Sheering Mill Lock CPUE178037
12.3 cm9 Sept 2025u/s Hunsdon Mill Lock178395
11.6 cm21 Aug 2025Sheering Mill Lock CPUE178037
11.2 cm21 Aug 2025Sheering Mill Lock CPUE178037

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
u/s Hunsdon Mill Lock9 Sept 20259 Sept 20251
Sheering Mill Lock CPUE21 Aug 202521 Aug 20251
Upstream Sheering Mill Lock - Sawbridgeworth Lock18 Apr 201118 Apr 20111

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

2011–2025

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 17 measured fish were spread across different length ranges.

Smallest
6.2 cm
Lower quarter
10.6 cm
Median
11.6 cm
Upper quarter
14.2 cm
Largest
21.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Stort Navigation

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

Perch Pike Roach Bleak Common bream 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 →