Roach · Rutilus rutilus

Roach in the King's Sedgemoor Drain

Largest measured roach: 24 cm

The largest roach measured in Environment Agency surveys of the King's Sedgemoor Drain was 24 cm, recorded at d/s Greylake sluice on 24 April 2007.

Across 3,335 measured roach, the median measured length was 8.4 cm.

Surveyors recorded weights for 814 roach. The median was 0.3 oz (0.008 kg) and the largest recorded weight was 9.6 oz (0.273 kg).

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the King's Sedgemoor Drain.

See roach records across England →

Most recent observation13 April 2022d/s Greylake sluice · 379 fish

Largest measured roach: 24 cm
Median length: 8.4 cm
Fish measured: 3,335
Survey locations: 4

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
24 cm	24 Apr 2007	d/s Greylake sluice	105267
22.5 cm	7 Sept 2011	u/s Parchey	127756
22.1 cm	30 Jul 2014	Langacre Rhyne	141946
22 cm	7 Sept 2011	u/s Parchey	127756
21.5 cm	7 Sept 2011	u/s Parchey	127756
21.2 cm	7 Sept 2011	u/s Parchey	127756
20.5 cm	7 Sept 2011	u/s Parchey	127756
20.4 cm	7 Sept 2011	u/s Parchey	127756
20.4 cm	7 Sept 2011	u/s Parchey	127756
20.4 cm	7 Sept 2011	u/s Parchey	127756

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
d/s Greylake sluice	24 Apr 2007	13 Apr 2022	6
Langacre Rhyne	6 Jul 2011	30 Jul 2014	2
u/s Greylake sluice	25 Apr 2007	14 Apr 2014	3
u/s Parchey	7 Sept 2011	7 Sept 2011	1

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

2007–2022

Survey records by year

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

207

008

109

010

411

012

013

314

015

016

117

018

019

020

021

122

Fish measured by surveyors

Measured length distribution

See how the 3,335 measured fish were spread across different length ranges.

Smallest: 2 cm
Lower quarter: 7.6 cm
Median: 8.4 cm
Upper quarter: 10 cm
Largest: 24 cm

0–99 mm

2500

100–199 mm

815

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 814 roach. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0 oz (0.001 kg)
Lower quarter: 0.2 oz (0.006 kg)
Median: 0.3 oz (0.008 kg)
Upper quarter: 0.4 oz (0.011 kg)
Heaviest: 9.6 oz (0.273 kg)

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

More fish in this river

Explore the King's Sedgemoor Drain

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

Pike Perch Silver bream Common bream 3-spined stickleback Ruffe

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 →