RiverFish

Roach · Rutilus rutilus

Roach in the River Lyd

Largest measured roach: 28.7 cm

The largest roach measured in Environment Agency surveys of the River Lyd was 28.7 cm, recorded at Canal Upper Basin on 27 May 2002.

Across 745 measured roach, the median measured length was 13.9 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 Lyd.

See roach records across England →

Most recent observation16 September 2025Downstream Weir, Next To Boating Lake · 139 fish
Largest measured roach
28.7 cm
Median length
13.9 cm
Fish measured
745
Survey locations
10

Individual EA measurements

Largest measured roach

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
28.7 cm27 May 2002Canal Upper Basin50382
27.6 cm27 May 2002Canal Upper Basin50382
27.4 cm27 May 2002Canal Upper Basin50382
27 cm27 May 2002Canal Upper Basin50382
26.9 cm27 May 2002Canal Upper Basin50382
26.7 cm27 May 2002Canal Upper Basin50382
26.1 cm27 May 2002Canal Upper Basin50382
25.8 cm27 May 2002Canal Upper Basin50382
25.8 cm9 Jun 1997d/s Lydney. Railway bridge d/s to canal63640
25 cm25 Jan 1994Lydney63666

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 surveyedFirst recordedLast recordedVisits finding roach
Downstream Weir, Next To Boating Lake22 May 200816 Sept 20252
u/s Whitecroft9 Apr 19915 Sept 20245
Lydney Canal, Inner Basin27 May 200227 May 20021
Canal Upper Basin27 May 200227 May 20021
u/s Lydney20 Jul 199215 May 20025
Upstream Wier at Lydney Boating Lake15 May 200215 May 20021
d/s Lydney. Railway bridge d/s to canal20 Jul 19929 Jun 19972
Lydney25 Jan 199425 Jan 19941
u/s Parkend9 Apr 19917 Nov 19933
d/s Nochards16 Oct 199216 Oct 19921

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

1991–2025

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 745 measured fish were spread across different length ranges.

Smallest
2.9 cm
Lower quarter
11.5 cm
Median
13.9 cm
Upper quarter
16.8 cm
Largest
28.7 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Lyd

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

European eel Brown / sea trout Bullhead Pike Dace Perch

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 →