RiverFish

Ruffe · Gymnocephalus cernuus

Ruffe in the Right hand bank (artificial)

Largest measured ruffe: 11.8 cm

The largest ruffe measured in Environment Agency surveys of the Right hand bank (artificial) was 11.8 cm, recorded at Run 1 on 12 September 2007.

Across 9 measured ruffe, the median measured length was 9.8 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the Right hand bank (artificial).

See ruffe records across England →

Most recent observation12 September 2007Run 1 · 7 fish
Largest measured ruffe
11.8 cm
Median length
9.8 cm
Fish measured
9
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
11.8 cm12 Sept 2007Run 1107195
11.6 cm12 Sept 2007Run 1107195
10.9 cm12 Sept 2007Run 3107191
10.6 cm12 Sept 2007Run 1107195
9.8 cm12 Sept 2007Run 1107195
9.5 cm12 Sept 2007Run 1107195
9.5 cm12 Sept 2007Run 1107195
9.4 cm12 Sept 2007Run 1107195
9.4 cm12 Sept 2007Run 2107183

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
Run 312 Sept 200712 Sept 20071
Run 212 Sept 200712 Sept 20071
Run 112 Sept 200712 Sept 20071

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

2007–2007

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 9 measured fish were spread across different length ranges.

Smallest
9.4 cm
Lower quarter
9.5 cm
Median
9.8 cm
Upper quarter
10.9 cm
Largest
11.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Right hand bank (artificial)

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

Bleak Chub Perch Pike Roach

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 →