Ruffe · Gymnocephalus cernuus

Ruffe in the Bellwater Drain

Largest measured ruffe: 15.6 cm

The largest ruffe measured in Environment Agency surveys of the Bellwater Drain was 15.6 cm, recorded at Hemholme Bridge on 22 August 1990.

Across 139 measured ruffe, the median measured length was 8.2 cm.

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

See ruffe records across England →

Most recent observation22 September 2016Bellwater Farm · 17 fish
Largest measured ruffe
15.6 cm
Median length
8.2 cm
Fish measured
139
Survey locations
3

Individual EA measurements

Largest measured ruffe

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

LengthSurvey dateSurvey locationSurvey ID
15.6 cm22 Aug 1990Hemholme Bridge57818
14.3 cm22 Aug 1990Hemholme Bridge57818
13.5 cm18 Jun 1993Thorpe Fen57831
12.4 cm22 Sept 2016Bellwater Farm150000
12.3 cm22 Aug 1990Hemholme Bridge57818
12.2 cm22 Sept 2016Bellwater Farm150000
12.1 cm22 Sept 2016Bellwater Farm150000
11.7 cm20 Jun 1996Thorpe Fen57846
11.2 cm20 Jun 1996Thorpe Fen57846
11.2 cm22 Aug 1990Hemholme Bridge57818

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where ruffe were found

Each point marks a survey location with at least one ruffe 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 ruffe
Bellwater Farm1 Jul 199322 Sept 20163
Hemholme Bridge1 Dec 198724 Jun 19964
Thorpe Fen18 Jun 199320 Jun 19962

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

1987–2016

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 139 measured fish were spread across different length ranges.

Smallest
4.8 cm
Lower quarter
7.3 cm
Median
8.2 cm
Upper quarter
9.6 cm
Largest
15.6 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Bellwater Drain

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

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 →