RiverFish

Dace · Leuciscus leuciscus

Dace in the River Swale

Largest measured dace: 40.8 cm

The largest dace measured in Environment Agency surveys of the River Swale was 40.8 cm, recorded at Langton Bridge on 8 August 2003.

Across 2,046 measured dace, the median measured length was 5.2 cm.

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

See dace records across England →

Most recent observation13 August 2025Maunby - Fry Survey · 192 fish
Largest measured dace
40.8 cm
Median length
5.2 cm
Fish measured
2,046
Survey locations
25

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
40.8 cm8 Aug 2003Langton Bridge77825
37.6 cm16 Aug 2000Maunby Demesne25693
27.5 cm11 Aug 2003Maunby Demesne Upper Site77835
26.1 cm9 Aug 2002Catterick55017
25.7 cm3 Aug 1995Brompton-on-Swale, Thornborough Farm110460
25.5 cm3 Aug 2010Morton-on-Swale124896
24.9 cm9 Aug 2002Catterick55017
24.7 cm7 Aug 2003Brompton-on-Swale, Thornborough Farm77809
24.5 cm3 Aug 1995Brompton-on-Swale, Thornborough Farm110460
24.4 cm3 Aug 1995Brompton-on-Swale, Thornborough Farm110460

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
Maunby - Fry Survey19 Sept 199613 Aug 202519
Skipton-on-Swale10 Aug 19957 Aug 202513
Maunby Demesne Upper Site14 Aug 200230 Jul 202512
Brafferton1 Aug 199630 Jul 202520
Myton Grange15 Aug 200224 Jul 202512
Morton-on-Swale15 Aug 20003 Aug 20105
Leckby2 Aug 20062 Jul 20103
Thornton Bridge - Fry Survey20 Sept 19841 Sept 200922
Brompton-on-Swale, Thornborough Farm3 Aug 199510 Aug 20064
Catton22 Jul 19972 Aug 20052
Holme25 Jun 19961 Aug 20052
Danotty Hall1 Aug 20051 Aug 20051
Ainderby Quernhow1 Aug 20051 Aug 20051
Topcliffe Caravan Park23 Jul 200228 Jul 20052
Fawdington23 Jul 200221 Jul 20052
Thornton Bridge20 Jul 200520 Jul 20051
u/s Topcliffe Weir (Gill Net)12 Aug 20037 Sept 20042
u/s Topcliffe Weir (Electric Fishing)12 Aug 200312 Aug 20031
Langton Bridge8 Aug 20038 Aug 20031
Baldersby14 Aug 200214 Aug 20021
Catterick9 Aug 20029 Aug 20021
Far Fairholme25 Jul 200225 Jul 20021
Maunby Demesne9 Aug 199516 Aug 20003
d/s Wiske22 Jul 199722 Jul 19971
Skipton - Fry Survey19 Sept 199619 Sept 19961

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

1984–2025

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 2,046 measured fish were spread across different length ranges.

Smallest
1.2 cm
Lower quarter
4.3 cm
Median
5.2 cm
Upper quarter
8.7 cm
Largest
40.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Swale

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

Minnow Chub Bullhead Stone loach Grayling Barbel

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 →