RiverFish

Roach · Rutilus rutilus

Roach in the River Calder

Largest measured roach: 41 cm

The largest roach measured in Environment Agency surveys of the River Calder was 41 cm, recorded at Chantry Bridge on 11 July 2003.

Across 5,549 measured roach, the median measured length was 11.4 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 Calder.

See roach records across England →

Most recent observation14 August 2025Dewsbury Fry Survey · 175 fish
Largest measured roach
41 cm
Median length
11.4 cm
Fish measured
5,549
Survey locations
16

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
41 cm11 Jul 2003Chantry Bridge78544
29 cm9 Aug 2004Chantry Bridge83566
28.3 cm4 Jul 2012Chantry Bridge132269
26.1 cm4 Jul 2012Chantry Bridge132269
25.7 cm12 Jul 1999Cornmill Weir109493
25.3 cm7 Jul 2009Dewsbury (end of flood relief channel)117763
25.3 cm24 Jul 2006Dewsbury (end of flood relief channel)101587
24.8 cm4 Jul 2012Chantry Bridge132269
24.7 cm29 Jun 2010Chantry Bridge122773
24.1 cm23 Jun 2015Chantry Bridge145166

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
Dewsbury Fry Survey22 Aug 201714 Aug 20255
Chantry Bridge10 Jul 200224 Jun 202412
Methley28 Jul 200619 Jun 20153
Brighouse - Fry Survey11 Sept 201014 Aug 20132
Dewsbury (end of flood relief channel)17 Sept 200430 Jul 20127
Cornmill Weir12 Jul 19997 Jul 20108
Brighouse Industrial Estate8 Jul 19996 Jul 20109
Smalley Bight7 Jul 20067 Jul 20061
Elland power Station d/s9 Jul 199925 Jul 20052
Eastwood S.T.W12 Oct 200412 Oct 20041
Ravensthorpe at weir (old site)11 Jul 200215 Jul 20032
Anchor Pits - Fry Survey20 Sept 200018 Sept 20012
Brookfoot5 Jul 19995 Jul 19991
Us Elland Power station2 Jul 19992 Jul 19991
High Royds S.T.W25 Jun 199925 Jun 19991
Elland - Fry Survey21 Sept 198417 Sept 19979

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 5,549 measured fish were spread across different length ranges.

Smallest
1.7 cm
Lower quarter
6.8 cm
Median
11.4 cm
Upper quarter
14.9 cm
Largest
41 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Calder

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

Brown / sea trout Stone loach Bullhead Gudgeon Chub Perch

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 →