Ruffe · Gymnocephalus cernuus

Ruffe in the River Yaxley Lode

Largest measured ruffe: 13.8 cm

The largest ruffe measured in Environment Agency surveys of the River Yaxley Lode was 13.8 cm, recorded at Frog Hall on 8 July 1994.

Across 205 measured ruffe, the median measured length was 7.8 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 Yaxley Lode.

See ruffe records across England →

Most recent observation13 July 2011Frog Hall · 5 fish

Largest measured ruffe: 13.8 cm
Median length: 7.8 cm
Fish measured: 205
Survey locations: 3

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	8 Jul 1994	Frog Hall	29776
13.3 cm	31 Jul 1987	Frog Hall	29770
12.3 cm	13 May 1999	Frog Hall	29778
12.3 cm	13 May 1999	Frog Hall	29778
12.3 cm	13 May 1999	Frog Hall	29778
11.8 cm	13 May 1999	Frog Hall	29778
11.8 cm	17 Aug 1987	Yaxley Fen	29769
11.3 cm	8 Jul 1994	Frog Hall	29776
11.3 cm	8 Jul 1994	Frog Hall	29776
11.3 cm	31 Jul 1987	Frog Hall	29770

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
Frog Hall	31 Jul 1987	13 Jul 2011	6
Yaxley Lode Bridge	5 May 1999	5 May 1999	1
Yaxley Fen	17 Aug 1987	7 Jul 1994	3

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

1987–2011

Survey records by year

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

287

088

089

090

291

092

093

294

095

096

097

098

299

000

001

002

003

004

005

106

007

008

009

010

111

Fish measured by surveyors

Measured length distribution

See how the 205 measured fish were spread across different length ranges.

Smallest: 4.3 cm
Lower quarter: 7.3 cm
Median: 7.8 cm
Upper quarter: 8.3 cm
Largest: 13.8 cm

0–99 mm

183

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Yaxley Lode

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

Perch Pike Roach Common bream Tench 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 →