Roach · Rutilus rutilus

Roach in the Holy Brook

Largest measured roach: 32.5 cm

The largest roach measured in Environment Agency surveys of the Holy Brook was 32.5 cm, recorded at Calcot country park. on 24 April 2003.

Across 123 measured roach, the median measured length was 13.2 cm.

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

See roach records across England →

Most recent observation13 October 2014Upstream Calcot mill · 8 fish

Largest measured roach: 32.5 cm
Median length: 13.2 cm
Fish measured: 123
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
32.5 cm	24 Apr 2003	Calcot country park.	75924
29.5 cm	29 Apr 2003	South Cote	75920
25.8 cm	24 Apr 2003	Calcot country park.	75924
24.3 cm	5 Oct 2004	Calcot country park.	82688
24.2 cm	5 Oct 2004	Calcot country park.	82688
23.8 cm	28 Sept 2004	South Cote	82547
23.5 cm	29 Apr 2003	South Cote	75920
22.5 cm	29 Apr 2003	South Cote	75920
21.8 cm	28 Sept 2004	South Cote	82547
21.5 cm	24 Apr 2003	Calcot country park.	75924

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 Calcot mill	13 Oct 2014	13 Oct 2014	1
Calcot country park.	24 Apr 2003	5 Oct 2004	2
South Cote	29 Apr 2003	28 Sept 2004	2

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

2003–2014

Survey records by year

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

203

204

005

006

007

008

009

010

011

012

013

114

Fish measured by surveyors

Measured length distribution

See how the 123 measured fish were spread across different length ranges.

Smallest: 4.1 cm
Lower quarter: 8.7 cm
Median: 13.2 cm
Upper quarter: 17.4 cm
Largest: 32.5 cm

0–99 mm

100–199 mm

200–299 mm

300–399 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Holy Brook

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

Perch Dace Pike Bleak

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 →