Roach · Rutilus rutilus

Roach in the River Alt

Largest measured roach: 23.5 cm

The largest roach measured in Environment Agency surveys of the River Alt was 23.5 cm, recorded at Bull Bridge on 31 August 2005.

Across 75 measured roach, the median measured length was 10 cm.

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

See roach records across England →

Most recent observation19 October 2015Homer Green · 1 fish

Largest measured roach: 23.5 cm
Median length: 10 cm
Fish measured: 75
Survey locations: 4

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
23.5 cm	31 Aug 2005	Bull Bridge	87759
23.4 cm	31 Aug 2005	Bull Bridge	87759
22.2 cm	31 Aug 2005	Bull Bridge	87759
20 cm	31 Aug 2005	Bull Bridge	87759
19.6 cm	31 Aug 2005	Bull Bridge	87759
18 cm	31 Aug 2005	Bull Bridge	87759
17.6 cm	31 Aug 2005	Bull Bridge	87759
16.2 cm	31 Aug 2005	Bull Bridge	87759
15.5 cm	4 Sept 1996	Carr Houses	114733
15 cm	19 Oct 2015	Homer Green	147197

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
Homer Green	19 Oct 2015	19 Oct 2015	1
Bull Bridge	17 Jul 2001	18 Oct 2007	3
Alt Bridge	4 Sept 1996	30 Aug 2005	3
Carr Houses	4 Sept 1996	4 Sept 1996	1

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

1996–2015

Survey records by year

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

296

097

098

099

000

201

002

003

004

205

006

107

008

009

010

011

012

013

014

115

Fish measured by surveyors

Measured length distribution

See how the 75 measured fish were spread across different length ranges.

Smallest: 3 cm
Lower quarter: 7.6 cm
Median: 10 cm
Upper quarter: 11.5 cm
Largest: 23.5 cm

0–99 mm

100–199 mm

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Alt

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

Gudgeon Flounder Chub 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 →