Dace · Leuciscus leuciscus

Dace in the River Arun

Largest measured dace: 23.1 cm

The largest dace measured in Environment Agency surveys of the River Arun was 23.1 cm, recorded at Horsham-by-Pass sq on 2 August 2005.

Across 951 measured dace, the median measured length was 11.9 cm.

Surveyors recorded weights for 658 dace. The median was 0.7 oz (0.021 kg) and the largest recorded weight was 5.7 oz (0.161 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 Arun.

See dace records across England →

Most recent observation21 October 2025Stopham Bridge · 4 fish

Largest measured dace: 23.1 cm
Median length: 11.9 cm
Fish measured: 951
Survey locations: 14

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
23.1 cm	2 Aug 2005	Horsham-by-Pass sq	87015
21.5 cm	13 Jul 2005	Bucks Green	86979
21.4 cm	13 Jul 2005	Bucks Green	86979
21.1 cm	27 Sept 2007	Bucks Green	107319
21.1 cm	25 Aug 2006	Bucks Green	102222
20.6 cm	13 Jul 2005	Bucks Green	86979
20.5 cm	2 Aug 2005	Horsham-by-Pass sq	87015
20.5 cm	2 Aug 2005	Horsham-by-Pass sq	87015
20.5 cm	13 Jul 2005	Bucks Green	86979
20.3 cm	25 Jul 2006	Roman Station	102008

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
Stopham Bridge	21 Oct 2025	21 Oct 2025	1
Theale Farm	9 Sept 2014	29 Jul 2025	2
Horsham Downstream Pack Horse Bridge	26 Jul 2022	9 Jul 2025	2
Pulborough Cut	28 Sept 2007	5 Sept 2022	8
Roman Station	30 Jul 2002	23 Jul 2019	12
Pallingham	1 Oct 2004	16 Jul 2019	5
Horsham STW	1 Aug 2002	26 Jul 2016	12
Bucks Green	16 Aug 2002	27 Sept 2007	6
Bignor Farm	30 Sept 2003	29 Aug 2007	3
Wellcross Bridge	2 Aug 2005	2 Aug 2007	2
Gibbons Mill	31 Jul 2002	26 Jul 2006	5
Violets Farm sq	8 Sept 2005	8 Sept 2005	1
Horsham-by-Pass sq	2 Aug 2005	2 Aug 2005	1
Newbridge	30 Jul 2002	30 Jul 2002	1

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

2002–2025

Survey records by year

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

502

503

604

705

406

507

408

409

410

011

212

313

114

015

316

017

018

319

020

021

222

023

024

325

Fish measured by surveyors

Measured length distribution

See how the 951 measured fish were spread across different length ranges.

Smallest: 1.8 cm
Lower quarter: 8.4 cm
Median: 11.9 cm
Upper quarter: 14.8 cm
Largest: 23.1 cm

0–99 mm

351

100–199 mm

586

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 658 dace. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0 oz (0.001 kg)
Lower quarter: 0.3 oz (0.008 kg)
Median: 0.7 oz (0.021 kg)
Upper quarter: 1.5 oz (0.043 kg)
Heaviest: 5.7 oz (0.161 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 Arun

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

Roach Chub Gudgeon European eel Minnow 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 →