RiverFish

Roach · Rutilus rutilus

Roach in the River DS Lark

Largest measured roach: 33.8 cm

The largest roach measured in Environment Agency surveys of the River DS Lark was 33.8 cm, recorded at Mildenhall on 20 November 1990.

Across 40,631 measured roach, the median measured length was 8.3 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 DS Lark.

See roach records across England →

Most recent observation17 September 2024Branch Bridge · 435 fish
Largest measured roach
33.8 cm
Median length
8.3 cm
Fish measured
40,631
Survey locations
12

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
33.8 cm20 Nov 1990Mildenhall29811
32.8 cm23 Nov 1990Wamil Hall29812
32.3 cm6 Dec 1990East Fen Isleham29814
32.3 cm6 Dec 1990East Fen Isleham29814
32.3 cm20 Nov 1990Mildenhall29811
30.8 cm13 Nov 1990Prickwillow29819
30.8 cm13 Nov 1990Prickwillow29819
30.3 cm20 Nov 1990Mildenhall29811
30.3 cm13 Nov 1990Prickwillow29819
30.3 cm13 Nov 1990Prickwillow29819

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
Branch Bridge8 Mar 198817 Sept 202418
Prickwillow13 Jun 199011 Sept 202415
Isleham Lock12 Nov 199010 Sept 202413
Wamil Hall23 Nov 19905 Sept 20246
Mildenhall20 Nov 19904 Sept 202413
Judes Ferry28 Nov 199020 Sept 20125
East Fen Isleham6 Dec 199014 Sept 201011
Riverside Cottage Mildenhall20 Oct 200420 Oct 20041
Kings Staunch19 Jan 200119 Jan 20011
Lark Grange15 Nov 199025 Jul 20004
Baskey Bay22 Nov 19905 Jul 20004
Isleham Backwater30 Nov 199028 Jun 20004

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

1988–2024

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 40,631 measured fish were spread across different length ranges.

Smallest
2.9 cm
Lower quarter
7.3 cm
Median
8.3 cm
Upper quarter
11.3 cm
Largest
33.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River DS Lark

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

Perch Pike Dace Gudgeon Common bream Rudd

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 →