Ruffe · Gymnocephalus cernuus

Ruffe in the Cowbridge Drain

Largest measured ruffe: 13.3 cm

The largest ruffe measured in Environment Agency surveys of the Cowbridge Drain was 13.3 cm, recorded at Bakers Bridge on 19 July 1993.

Across 416 measured ruffe, the median measured length was 8.7 cm.

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

See ruffe records across England →

Most recent observation28 September 2016Bakers Bridge · 3 fish

Largest measured ruffe: 13.3 cm
Median length: 8.7 cm
Fish measured: 416
Survey locations: 2

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
13.3 cm	19 Jul 1993	Bakers Bridge	57836
11.7 cm	19 Jul 1993	Bakers Bridge	57836
11.6 cm	20 Jul 2011	Kelsey Bridge	128674
11.6 cm	15 May 2006	Kelsey Bridge	99649
11.4 cm	27 Jul 2011	Bakers Bridge	128391
11.4 cm	20 Jul 2011	Kelsey Bridge	128674
11.4 cm	20 Jul 2011	Kelsey Bridge	128674
11.4 cm	12 Jul 1996	Bakers Bridge	57851
11.4 cm	19 Jul 1993	Bakers Bridge	57836
11.3 cm	12 Jul 1996	Bakers Bridge	57851

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
Bakers Bridge	19 Jul 1993	28 Sept 2016	4
Kelsey Bridge	14 Jul 1993	11 Jul 2013	5

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

1993–2016

Survey records by year

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

293

094

095

296

097

098

099

000

001

002

003

004

005

106

007

008

009

010

211

012

113

014

015

116

Fish measured by surveyors

Measured length distribution

See how the 416 measured fish were spread across different length ranges.

Smallest: 3 cm
Lower quarter: 7.5 cm
Median: 8.7 cm
Upper quarter: 9.6 cm
Largest: 13.3 cm

0–99 mm

338

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Cowbridge Drain

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

Common bream Perch Pike Roach European eel Bleak

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 →