Roach · Rutilus rutilus

Roach in the Parsons Brook

Largest measured roach: 11.9 cm

The largest roach measured in Environment Agency surveys of the Parsons Brook was 11.9 cm, recorded at Parsons Brook Q on 16 August 2013.

Across 11 measured roach, the median measured length was 5.6 cm.

Surveyors recorded weights for 9 roach. The median was 0.1 oz (0.002 kg) and the largest recorded weight was 0.2 oz (0.006 kg).

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

See roach records across England →

Most recent observation16 August 2013Parsons Brook Q · 2 fish

Largest measured roach: 11.9 cm
Median length: 5.6 cm
Fish measured: 11
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
11.9 cm	16 Aug 2013	Parsons Brook Q	138027
7.4 cm	7 Aug 2006	Parsons Brook Q	102298
7.4 cm	4 Jul 2003	Parsons Brook Q	76698
6.6 cm	14 Aug 2002	Parsons Brook sq	62821
6 cm	14 Aug 2002	Parsons Brook sq	62821
5.6 cm	8 Aug 2005	Parsons Brook Q	87405
5.6 cm	14 Aug 2002	Parsons Brook sq	62821
5.4 cm	16 Aug 2013	Parsons Brook Q	138027
2 cm	14 Aug 2002	Parsons Brook sq	62821
2 cm	14 Aug 2002	Parsons Brook sq	62821

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
Parsons Brook Q	4 Jul 2003	16 Aug 2013	4
Parsons Brook sq	14 Aug 2002	14 Aug 2002	1

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

2002–2013

Survey records by year

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

102

103

004

105

106

007

008

009

010

011

012

113

Fish measured by surveyors

Measured length distribution

See how the 11 measured fish were spread across different length ranges.

Smallest: 2 cm
Lower quarter: 3.7 cm
Median: 5.6 cm
Upper quarter: 7 cm
Largest: 11.9 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 9 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: 0.1 oz (0.002 kg)
Upper quarter: 0.2 oz (0.005 kg)
Heaviest: 0.2 oz (0.006 kg)

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

More fish in this river

Explore the Parsons Brook

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

3-spined stickleback Bullhead Stone loach European eel

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 →