Roach · Rutilus rutilus

Roach in the River Main Congresbury Yeo

Largest measured roach: 17.5 cm

The largest roach measured in Environment Agency surveys of the River Main Congresbury Yeo was 17.5 cm, recorded at Congresbury Church on 10 August 1994.

Across 36 measured roach, the median measured length was 3.7 cm.

Surveyors recorded weights for 25 roach. The median was 0 oz (0.001 kg) and the largest recorded weight was 3.6 oz (0.103 kg).

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

See roach records across England →

Most recent observation27 August 1999Iwood Bridge · 2 fish

Largest measured roach: 17.5 cm
Median length: 3.7 cm
Fish measured: 36
Survey locations: 5

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
17.5 cm	10 Aug 1994	Congresbury Church	79705
13.4 cm	10 Aug 1994	Congresbury Church	79705
13.1 cm	26 Jul 1994	East Hewish	79707
11.4 cm	27 Aug 1999	Iwood Bridge	75869
9.8 cm	27 Aug 1999	Iwood Bridge	75869
6.5 cm	26 Jul 1994	East Hewish	79707
4.6 cm	9 Aug 1994	Below Pilhay Footbridge	79706
4.3 cm	9 Aug 1994	Below Pilhay Footbridge	79706
4.2 cm	9 Aug 1994	Below Pilhay Footbridge	79706
4.1 cm	11 Aug 1994	Iwood Bridge	79704

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
Iwood Bridge	11 Aug 1994	27 Aug 1999	2
Congresbury Church	10 Aug 1994	10 Aug 1994	1
Below Pilhay Footbridge	9 Aug 1994	9 Aug 1994	1
East Hewish	26 Jul 1994	26 Jul 1994	1
Below M5	21 Jul 1994	21 Jul 1994	1

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

1994–1999

Survey records by year

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

594

095

096

097

098

199

Fish measured by surveyors

Measured length distribution

See how the 36 measured fish were spread across different length ranges.

Smallest: 2.7 cm
Lower quarter: 3.3 cm
Median: 3.7 cm
Upper quarter: 4.1 cm
Largest: 17.5 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 25 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 oz (0.001 kg)
Median: 0 oz (0.001 kg)
Upper quarter: 0.1 oz (0.002 kg)
Heaviest: 3.6 oz (0.103 kg)

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

More fish in this river

Explore the River Main Congresbury Yeo

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

European eel Stone loach Brown / sea trout Bullhead Gudgeon Pike

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 →