Dace · Leuciscus leuciscus

Dace in the Main River Isle

Largest measured dace: 24.9 cm

The largest dace measured in Environment Agency surveys of the Main River Isle was 24.9 cm, recorded at Cocks Bridge (Te) on 20 June 2005.

Across 833 measured dace, the median measured length was 14.5 cm.

Surveyors recorded weights for 353 dace. The median was 1.1 oz (0.031 kg) and the largest recorded weight was 7.5 oz (0.213 kg).

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

See dace records across England →

Most recent observation16 June 2022Cocks Bridge (Te) · 9 fish

Largest measured dace: 24.9 cm
Median length: 14.5 cm
Fish measured: 833
Survey locations: 11

Individual EA measurements

Largest measured dace

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

Length	Survey date	Survey location	Survey ID
24.9 cm	20 Jun 2005	Cocks Bridge (Te)	84870
23.3 cm	25 Jun 1992	Donyatt	80028
23.2 cm	19 Jun 1992	Winterhay Lane	80030
23.1 cm	20 Jun 2005	Cocks Bridge (Te)	84870
23 cm	16 Jun 2022	Cocks Bridge (Te)	160993
23 cm	17 Jul 2014	Cocks Bridge (Te)	141754
23 cm	7 Jul 1997	Donyatt	79517
22.7 cm	16 Jun 2022	Cocks Bridge (Te)	160993
22.7 cm	20 Jun 2005	Cocks Bridge (Te)	84870
22.7 cm	22 Jul 2004	Cocks Bridge (Te)	80770

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 surveyed	First recorded	Last recorded	Visits finding dace
Cocks Bridge (Te)	18 Jun 1992	16 Jun 2022	15
Midelney	11 Sept 2007	28 Jun 2017	3
Ashford Farm (Te)	29 May 1992	29 Jun 2016	11
Ilford Bridges (Te)	11 Jun 1992	23 Jun 2016	9
Hambridge	8 Jun 1992	24 May 2011	3
Hort Bridge	7 Jul 2010	7 Jul 2010	1
Isle Brewers	9 Jun 1992	21 May 2008	3
Donyatt	25 Jun 1992	7 Jul 1997	2
Winterhay Lane	19 Jun 1992	4 Jul 1997	2
Earnshill House	19 May 1992	19 May 1992	1
Downstream Westport Canal	14 May 1992	14 May 1992	1

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

1992–2022

Survey records by year

Each bar shows how many survey visits recorded dace that year.

992

093

094

095

096

797

098

099

000

001

202

103

304

305

306

307

508

109

410

211

112

113

114

015

316

117

018

019

020

021

122

Fish measured by surveyors

Measured length distribution

See how the 833 measured fish were spread across different length ranges.

Smallest: 3.2 cm
Lower quarter: 11 cm
Median: 14.5 cm
Upper quarter: 17.6 cm
Largest: 24.9 cm

0–99 mm

168

100–199 mm

593

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 353 dace. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0 oz (0.001 kg)
Lower quarter: 0.5 oz (0.013 kg)
Median: 1.1 oz (0.031 kg)
Upper quarter: 2.5 oz (0.07 kg)
Heaviest: 7.5 oz (0.213 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the Main River Isle

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

European eel Stone loach Minnow 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 →