Ruffe · Gymnocephalus cernuus

Ruffe in the River Barton Broad margin

Largest measured ruffe: 12 cm

The largest ruffe measured in Environment Agency surveys of the River Barton Broad margin was 12 cm, recorded at Bm18 on 4 October 2000.

Across 195 measured ruffe, the median measured length was 5.5 cm.

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

See ruffe records across England →

Most recent observation4 October 2000Bm18 · 28 fish

Largest measured ruffe: 12 cm
Median length: 5.5 cm
Fish measured: 195
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.

Length	Survey date	Survey location	Survey ID
12 cm	4 Oct 2000	Bm18	18723
11.2 cm	28 Sept 2000	Bm15	18720
10.3 cm	28 Sept 2000	Bm15	18720
7 cm	28 Sept 2000	Bm16	18721
7 cm	28 Sept 2000	Bm16	18721
6.6 cm	4 Oct 2000	Bm17	18722
6.6 cm	28 Sept 2000	Bm16	18721
6.5 cm	28 Sept 2000	Bm16	18721
6.5 cm	28 Sept 2000	Bm16	18721
6.5 cm	28 Sept 2000	Bm16	18721

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 surveyed	First recorded	Last recorded	Visits finding ruffe
Bm18	4 Oct 2000	4 Oct 2000	1
Bm17	4 Oct 2000	4 Oct 2000	1
Bm16	28 Sept 2000	28 Sept 2000	1
Bm15	28 Sept 2000	28 Sept 2000	1

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

2000–2000

Survey records by year

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

400

Fish measured by surveyors

Measured length distribution

See how the 195 measured fish were spread across different length ranges.

Smallest: 4.1 cm
Lower quarter: 5.1 cm
Median: 5.5 cm
Upper quarter: 6 cm
Largest: 12 cm

0–99 mm

192

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Barton Broad margin

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

Perch Roach Pike Rudd 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 →