RiverFish

Dace · Leuciscus leuciscus

Dace in the River Desborough Island

Largest measured dace: 18.5 cm

The largest dace measured in Environment Agency surveys of the River Desborough Island was 18.5 cm, recorded at Desborough Island Downstream Fry on 21 August 2012.

Across 756 measured dace, the median measured length was 5.5 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 Desborough Island.

See dace records across England →

Most recent observation3 September 2025Desborough Island Upstream Fry · 38 fish
Largest measured dace
18.5 cm
Median length
5.5 cm
Fish measured
756
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
18.5 cm21 Aug 2012Desborough Island Downstream Fry135273
18.5 cm21 Aug 2012Desborough Island Downstream Fry135273
17.3 cm21 Aug 2012Desborough Island Downstream Fry135273
16.5 cm25 Aug 2011Desborough Island Downstream Fry130053
16 cm21 Aug 2018Desborough Island Upstream Fry153445
14 cm1 Sept 2005Desborough Island Upstream Fry111825
13.4 cm21 Aug 2012Desborough Island Upstream Fry135274
13.4 cm20 Aug 2009Desborough Island Downstream Fry120814
13.3 cm22 Aug 2007Desborough Island Downstream Fry108633
13 cm21 Aug 2012Desborough Island Downstream Fry135273

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
Desborough Island Upstream Fry1 Sept 20053 Sept 202516
Desborough Island Downstream Fry22 Sept 20063 Sept 202516
Desborough Island 10C22 Aug 200722 Aug 20071

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

2005–2025

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 756 measured fish were spread across different length ranges.

Smallest
2 cm
Lower quarter
4.8 cm
Median
5.5 cm
Upper quarter
6.2 cm
Largest
18.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Desborough Island

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

Roach Perch Chub Bleak Ruffe 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 →