RiverFish

Ruffe · Gymnocephalus cernuus

Ruffe in the Cut-Off Channel

Largest measured ruffe: 14.5 cm

The largest ruffe measured in Environment Agency surveys of the Cut-Off Channel was 14.5 cm, recorded at Stoke Ferry WTW on 26 April 2012.

Across 1,229 measured ruffe, 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 Cut-Off Channel.

See ruffe records across England →

Most recent observation7 June 2023Wretton · 1 fish
Largest measured ruffe
14.5 cm
Median length
8.3 cm
Fish measured
1,229
Survey locations
13

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
14.5 cm26 Apr 2012Stoke Ferry WTW131135
13.8 cm2 Jul 1990Sparks Farm Eriswell29781
13.3 cm9 May 1994Blackdyke Farm29794
13.3 cm13 Jul 1990Crossways Farm29790
13.3 cm10 Jul 1990Thornham Bridge29787
13.3 cm4 Jul 1990Whiteplot Farm29786
12.8 cm8 Jul 1997Wretton29805
12.8 cm8 Jul 1997Wretton29805
12.8 cm8 Jul 1997Wretton29805
12.8 cm6 May 1994Hockwold Bridge29793

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
Wretton27 May 19867 Jun 202310
Stoke Ferry WTW1 Apr 200431 May 20235
Denver Sluice6 May 19864 Apr 201711
Hilgay Bridge5 Jun 19863 Apr 201711
Wissington3 Jun 198630 Mar 201711
Crossways Farm4 Jun 198615 Aug 20068
Thornham Bridge10 Jul 19907 Jul 19973
Whiteplot Farm21 May 19864 Jul 19975
Blackdyke Farm3 Jul 19909 May 19942
Hockwold Bridge6 May 19946 May 19941
Willow Grove Farm Lakenheath9 Jul 19909 Jul 19901
Eriswell Hall Farm15 May 19866 Jul 19902
Sparks Farm Eriswell2 Jul 19902 Jul 19901

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

1986–2023

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 1,229 measured fish were spread across different length ranges.

Smallest
3.8 cm
Lower quarter
6.8 cm
Median
8.3 cm
Upper quarter
9.3 cm
Largest
14.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Cut-Off Channel

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

Roach Perch Pike Common bream European eel Gudgeon

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 →