Roach · Rutilus rutilus

Roach in the Layer Brook

Largest measured roach: 34 cm

The largest roach measured in Environment Agency surveys of the Layer Brook was 34 cm, recorded at Layer Brook Site on 8 March 1984.

Across 554 measured roach, the median measured length was 9.6 cm.

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

See roach records across England →

Most recent observation10 November 2005Layer Brook Site · 145 fish

Largest measured roach: 34 cm
Median length: 9.6 cm
Fish measured: 554
Survey locations: 1

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
34 cm	8 Mar 1984	Layer Brook Site	14677
30.1 cm	8 Mar 1984	Layer Brook Site	14677
26.5 cm	8 Mar 1984	Layer Brook Site	14677
26 cm	26 Oct 1993	Layer Brook Site	14692
25.3 cm	8 Mar 1984	Layer Brook Site	14677
25.1 cm	8 Mar 1984	Layer Brook Site	14677
24.5 cm	8 Mar 1984	Layer Brook Site	14677
24.2 cm	8 Mar 1984	Layer Brook Site	14677
23.5 cm	8 Mar 1984	Layer Brook Site	14677
23.2 cm	8 Mar 1984	Layer Brook Site	14677

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
Layer Brook Site	8 Mar 1984	10 Nov 2005	7

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

1984–2005

Survey records by year

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

184

085

086

187

088

089

090

191

092

193

094

095

196

097

098

199

000

001

002

003

004

105

Fish measured by surveyors

Measured length distribution

See how the 554 measured fish were spread across different length ranges.

Smallest: 3.1 cm
Lower quarter: 7.3 cm
Median: 9.6 cm
Upper quarter: 13.5 cm
Largest: 34 cm

0–99 mm

299

100–199 mm

215

200–299 mm

300–399 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Layer Brook

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

European eel 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 →