Roach · Rutilus rutilus

Roach in the Durleigh Brook

Largest measured roach: 14.7 cm

The largest roach measured in Environment Agency surveys of the Durleigh Brook was 14.7 cm, recorded at Downstream Durleigh Reservoir on 20 June 2017.

Across 150 measured roach, the median measured length was 9.2 cm.

Surveyors recorded weights for 33 roach. The median was 0.1 oz (0.004 kg) and the largest recorded weight was 1.7 oz (0.047 kg).

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

See roach records across England →

Most recent observation20 June 2017Downstream Durleigh Reservoir · 112 fish

Largest measured roach: 14.7 cm
Median length: 9.2 cm
Fish measured: 150
Survey locations: 2

Individual EA measurements

Largest measured roach

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

Length	Survey date	Survey location	Survey ID
14.7 cm	20 Jun 2017	Downstream Durleigh Reservoir	150591
14.2 cm	20 Jun 2017	Downstream Durleigh Reservoir	150591
14.2 cm	10 Apr 2006	Downstream Durleigh Reservoir	90792
14.2 cm	10 Apr 2006	Rexworthy Farm	90791
13.9 cm	20 Jun 2017	Downstream Durleigh Reservoir	150591
13.8 cm	10 Apr 2006	Downstream Durleigh Reservoir	90792
13.6 cm	20 Jun 2017	Downstream Durleigh Reservoir	150591
13.4 cm	20 Jun 2017	Downstream Durleigh Reservoir	150591
13.4 cm	20 Jun 2017	Downstream Durleigh Reservoir	150591
13.2 cm	10 Apr 2006	Rexworthy Farm	90791

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 surveyed	First recorded	Last recorded	Visits finding roach
Rexworthy Farm	10 Apr 2006	20 Jun 2017	2
Downstream Durleigh Reservoir	10 Apr 2006	20 Jun 2017	3

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

2006–2017

Survey records by year

Each bar shows how many survey visits recorded roach that year.

206

007

008

009

010

011

112

013

014

015

016

217

Fish measured by surveyors

Measured length distribution

See how the 150 measured fish were spread across different length ranges.

Smallest: 5.1 cm
Lower quarter: 7.1 cm
Median: 9.2 cm
Upper quarter: 11.2 cm
Largest: 14.7 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 33 roach. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0 oz (0.001 kg)
Lower quarter: 0.1 oz (0.002 kg)
Median: 0.1 oz (0.004 kg)
Upper quarter: 0.8 oz (0.022 kg)
Heaviest: 1.7 oz (0.047 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the Durleigh Brook

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

3-spined stickleback

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 →