RiverFish

Roach · Rutilus rutilus

Roach in the North Forty Foot Drain

Largest measured roach: 18.8 cm

The largest roach measured in Environment Agency surveys of the North Forty Foot Drain was 18.8 cm, recorded at Gill Syke End on 3 July 1987.

Across 493 measured roach, the median measured length was 7.2 cm.

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

See roach records across England →

Most recent observation4 August 1987Dovecote Farm · 27 fish
Largest measured roach
18.8 cm
Median length
7.2 cm
Fish measured
493
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.

LengthSurvey dateSurvey locationSurvey ID
18.8 cm3 Jul 1987Gill Syke End57709
18.5 cm3 Aug 1987Holland Fen57710
17.6 cm3 Jul 1987Gill Syke End57709
16.7 cm3 Jul 1987Gill Syke End57709
16.5 cm3 Jul 1987Gill Syke End57709
16.3 cm3 Jul 1987Gill Syke End57709
16.3 cm3 Jul 1987Gill Syke End57709
16.2 cm3 Jul 1987Gill Syke End57709
16.2 cm3 Jul 1987Gill Syke End57709
15.6 cm3 Aug 1987Holland Fen57710

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
Dovecote Farm4 Aug 19874 Aug 19871
Holland Fen3 Aug 19873 Aug 19871
Gill Syke End3 Jul 19873 Jul 19871

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

1987–1987

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 493 measured fish were spread across different length ranges.

Smallest
4.1 cm
Lower quarter
6.3 cm
Median
7.2 cm
Upper quarter
11.2 cm
Largest
18.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the North Forty Foot Drain

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

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 →