RiverFish

Roach · Rutilus rutilus

Roach in the Bielby Beck System

Largest measured roach: 22 cm

The largest roach measured in Environment Agency surveys of the Bielby Beck System was 22 cm, recorded at The Beck, Hagg Bridge DERCORS15 on 28 June 2012.

Across 144 measured roach, the median measured length was 7.2 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the Bielby Beck System.

See roach records across England →

Most recent observation18 June 2019The Beck,Thornton Bridge DERCORS14 · 29 fish
Largest measured roach
22 cm
Median length
7.2 cm
Fish measured
144
Survey locations
3

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
22 cm28 Jun 2012The Beck, Hagg Bridge DERCORS15131637
21.5 cm28 Jun 2012The Beck, Hagg Bridge DERCORS15131637
19.5 cm2 Jul 2002The Beck, Hagg Bridge DERCORS1572543
19.4 cm28 Jun 2012The Beck, Hagg Bridge DERCORS15131637
19.3 cm28 Jun 2012The Beck, Hagg Bridge DERCORS15131637
18.9 cm28 Jun 2012The Beck, Hagg Bridge DERCORS15131637
18.9 cm2 Jul 2002The Beck, Hagg Bridge DERCORS1572543
18.5 cm28 Jun 2012The Beck, Hagg Bridge DERCORS15131637
18.4 cm2 Jul 2002The Beck, Hagg Bridge DERCORS1572543
18.2 cm2 Jul 2002The Beck, Hagg Bridge DERCORS1572543

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
The Beck,Thornton Bridge DERCORS142 Jul 200218 Jun 20193
Blackfoss Beck, Woodhouse Farm DERCORS1328 Jun 201211 Jun 20192
The Beck, Hagg Bridge DERCORS152 Jul 200228 Jun 20122

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

2002–2019

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 144 measured fish were spread across different length ranges.

Smallest
3.7 cm
Lower quarter
5.5 cm
Median
7.3 cm
Upper quarter
11.9 cm
Largest
22 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Bielby Beck System

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

Stone loach Bullhead Minnow European eel 3-spined stickleback Brown / sea trout

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 →