RiverFish

Dace · Leuciscus leuciscus

Dace in the River Nidd

Largest measured dace: 25.1 cm

The largest dace measured in Environment Agency surveys of the River Nidd was 25.1 cm, recorded at Ribston Park on 22 August 2002.

Across 2,252 measured dace, the median measured length was 8.1 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 Nidd.

See dace records across England →

Most recent observation13 August 2025Kirk Hammerton - Fry Survey · 150 fish
Largest measured dace
25.1 cm
Median length
8.1 cm
Fish measured
2,252
Survey locations
10

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
25.1 cm22 Aug 2002Ribston Park68180
23.6 cm4 Aug 2011Cowthorpe128668
22.2 cm26 Aug 2003Ribston Park78461
21.7 cm23 Aug 2002Cowthorpe68200
21.6 cm21 Jun 2022Cowthorpe161163
20.9 cm10 Jul 2014Cowthorpe141648
20.9 cm3 Aug 2004Cowthorpe82047
20.5 cm2 Jul 2019Cowthorpe154897
20.3 cm4 Aug 2011Cowthorpe128668
20.2 cm2 Jul 2019Cowthorpe154897

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
Kirk Hammerton - Fry Survey20 Sept 198413 Aug 202524
Moor Monkton27 Jun 202217 Jul 20252
Cowthorpe23 Aug 20027 Jul 202519
Skip Bridge16 Jul 202423 Jun 20252
Nun Monkton21 Aug 200222 Jul 201914
Ribston Park (NEW 2018)3 Jul 20193 Jul 20191
Knaresborough Bypass26 Aug 20032 Jul 201911
Kirk Hammerton21 Aug 200223 Jun 201613
Ribston Park22 Aug 20023 Jul 20149
Scotton Mill14 Jun 200514 Jun 20051

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 2,252 measured fish were spread across different length ranges.

Smallest
2 cm
Lower quarter
5.2 cm
Median
8.1 cm
Upper quarter
12 cm
Largest
25.1 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Nidd

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

Minnow Bullhead Stone loach Grayling Brown / sea trout European eel

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 →