Ruffe · Gymnocephalus cernuus

Ruffe in the River East Fen Catchwater

Largest measured ruffe: 13.8 cm

The largest ruffe measured in Environment Agency surveys of the River East Fen Catchwater was 13.8 cm, recorded at Halton Fenside on 30 May 2000.

Across 295 measured ruffe, the median measured length was 7.5 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 East Fen Catchwater.

See ruffe records across England →

Most recent observation30 April 2013Downstream Staunch Farm · 13 fish

Largest measured ruffe: 13.8 cm
Median length: 7.5 cm
Fish measured: 295
Survey locations: 6

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
13.8 cm	30 May 2000	Halton Fenside	59016
13.8 cm	30 May 2000	Halton Fenside	59016
12.6 cm	12 Jun 1990	Downstream Staunch Farm	58223
12.4 cm	12 Jun 1990	Downstream Staunch Farm	58223
12.2 cm	12 Jun 1990	Downstream Staunch Farm	58223
11.5 cm	13 Jun 1990	Holmes Road Stickney	58224
11.5 cm	13 Jun 1990	Holmes Road Stickney	58224
11.5 cm	13 Jun 1990	Holmes Road Stickney	58224
11.5 cm	12 Jun 1990	Downstream Staunch Farm	58223
11.4 cm	13 Jun 1990	Holmes Road Stickney	58224

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
Downstream Staunch Farm	11 May 1987	30 Apr 2013	8
Keal Cotes	19 May 1987	11 May 2006	4
Holmes Road Stickney	13 Jun 1990	8 Jun 2000	3
Harehills Farm	14 May 1987	30 May 2000	4
Halton Fenside	30 May 2000	30 May 2000	1
Bar Bridge Farm	29 May 1987	29 May 1987	1

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

1987–2013

Survey records by year

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

487

088

089

290

091

092

493

094

095

296

097

098

099

400

001

002

103

104

105

106

007

008

009

010

011

012

113

Fish measured by surveyors

Measured length distribution

See how the 295 measured fish were spread across different length ranges.

Smallest: 4 cm
Lower quarter: 6.3 cm
Median: 7.5 cm
Upper quarter: 8.9 cm
Largest: 13.8 cm

0–99 mm

253

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River East Fen Catchwater

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

Perch Pike Roach Gudgeon Silver bream European eel

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 →