Roach · Rutilus rutilus

Roach in the Boldings Brook

Largest measured roach: 20.2 cm

The largest roach measured in Environment Agency surveys of the Boldings Brook was 20.2 cm, recorded at Upstream Farthing Bridge on 10 May 2013.

Across 166 measured roach, the median measured length was 9.2 cm.

Surveyors recorded weights for 30 roach. The median was 0.2 oz (0.0045 kg) and the largest recorded weight was 1.3 oz (0.037 kg).

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

See roach records across England →

Most recent observation25 June 2024Upstream Farthing Bridge · 13 fish

Largest measured roach: 20.2 cm
Median length: 9.2 cm
Fish measured: 166
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.

Length	Survey date	Survey location	Survey ID
20.2 cm	10 May 2013	Upstream Farthing Bridge	135987
16.6 cm	10 May 2013	Upstream Farthing Bridge	135987
16.4 cm	10 May 2013	Upstream Farthing Bridge	135987
15.5 cm	10 May 2013	Upstream Farthing Bridge	135987
15.2 cm	25 Jun 2024	Upstream Farthing Bridge	165452
14.6 cm	10 May 2013	Upstream Farthing Bridge	135987
14.3 cm	25 Jun 2024	Upstream Farthing Bridge	165452
14.3 cm	10 May 2013	Upstream Farthing Bridge	135987
14.2 cm	25 Jul 2016	Redford Avenue	148668
14 cm	10 May 2013	Upstream Farthing Bridge	135987

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
Upstream Farthing Bridge	10 May 2013	25 Jun 2024	3
Redford Avenue	25 Jul 2016	25 Jul 2016	1
Downstream Farthing Bridge sq	4 Aug 2005	4 Aug 2005	1

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

2005–2024

Survey records by year

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

105

006

007

008

009

010

011

012

113

014

015

216

017

018

019

020

021

022

023

124

Fish measured by surveyors

Measured length distribution

See how the 166 measured fish were spread across different length ranges.

Smallest: 3.7 cm
Lower quarter: 7.2 cm
Median: 9.2 cm
Upper quarter: 11.5 cm
Largest: 20.2 cm

0–99 mm

100–199 mm

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 30 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: 0.2 oz (0.0045 kg)
Upper quarter: 0.4 oz (0.012 kg)
Heaviest: 1.3 oz (0.037 kg)

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

More fish in this river

Explore the Boldings Brook

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

European eel Chub Gudgeon Perch Minnow

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 →