RiverFish

Ruffe · Gymnocephalus cernuus

Ruffe in the Sincil Dyke

Largest measured ruffe: 12.2 cm

The largest ruffe measured in Environment Agency surveys of the Sincil Dyke was 12.2 cm, recorded at Lincoln Football Ground on 2 June 1994.

Across 41 measured ruffe, the median measured length was 8.9 cm.

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

See ruffe records across England →

Most recent observation27 September 2007Washingborough · 5 fish
Largest measured ruffe
12.2 cm
Median length
8.9 cm
Fish measured
41
Survey locations
4

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
12.2 cm2 Jun 1994Lincoln Football Ground53295
11.4 cm2 Jun 1994Lincoln Football Ground53295
11.1 cm27 Sept 2007Washingborough107049
10.7 cm12 Jul 1994Washingborough53296
10.3 cm5 Aug 1998Washingborough53410
10.3 cm12 Jul 1994Washingborough53296
10.2 cm27 Sept 2007Washingborough107049
10.2 cm2 Jun 1994Lincoln Football Ground53295
10.1 cm17 Jul 1998Bardney Locks53413
10.1 cm12 Jul 1994Washingborough53296

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
Washingborough17 May 198827 Sept 20074
Bardney Locks17 Jul 199821 Jul 20043
Five Mile House5 Oct 200016 Jul 20042
Lincoln Football Ground19 Aug 19852 Jun 19942

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

1985–2007

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 41 measured fish were spread across different length ranges.

Smallest
4 cm
Lower quarter
7.8 cm
Median
8.9 cm
Upper quarter
10 cm
Largest
12.2 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Sincil Dyke

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

Roach Perch Common bream Pike Dace 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 →