RiverFish

Roach · Rutilus rutilus

Roach in the River Nidd

Largest measured roach: 25.9 cm

The largest roach measured in Environment Agency surveys of the River Nidd was 25.9 cm, recorded at Kirk Hammerton on 12 July 2010.

Across 2,867 measured roach, the median measured length was 4.1 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 roach records across England →

Most recent observation13 August 2025Kirk Hammerton - Fry Survey · 438 fish
Largest measured roach
25.9 cm
Median length
4.1 cm
Fish measured
2,867
Survey locations
9

Individual EA measurements

Largest measured roach

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

LengthSurvey dateSurvey locationSurvey ID
25.9 cm12 Jul 2010Kirk Hammerton122956
25.2 cm12 Jul 2010Kirk Hammerton122956
24.9 cm10 Jul 2014Kirk Hammerton141649
24.4 cm12 Jul 2010Kirk Hammerton122956
23.7 cm12 Jul 2010Kirk Hammerton122956
23.4 cm10 Aug 2005Kirk Hammerton88072
22.6 cm2 Aug 2004Nun Monkton82116
22.4 cm10 Aug 2005Kirk Hammerton88072
22.3 cm10 Aug 2005Kirk Hammerton88072
22.2 cm10 Aug 2005Kirk Hammerton88072

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where roach were found

Each point marks a survey location with at least one roach 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 roach
Kirk Hammerton - Fry Survey20 Sept 198413 Aug 202530
Moor Monkton27 Jun 202217 Jul 20252
Cowthorpe23 Aug 20027 Jul 202514
Skip Bridge22 Jun 202223 Jun 20253
Nun Monkton21 Aug 200218 Jul 201713
Kirk Hammerton21 Aug 200223 Jun 201613
Ribston Park22 Aug 20023 Jul 20147
Knaresborough Bypass26 Aug 20032 Aug 20126
u/s Pately Bridge13 Jun 200813 Jun 20081

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 roach that year.

Fish measured by surveyors

Measured length distribution

See how the 2,867 measured fish were spread across different length ranges.

Smallest
1.6 cm
Lower quarter
3.1 cm
Median
4.1 cm
Upper quarter
7.8 cm
Largest
25.9 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 →