Ruffe · Gymnocephalus cernuus

Ruffe in the River Yare

Largest measured ruffe: 15.4 cm

The largest ruffe measured in Environment Agency surveys of the River Yare was 15.4 cm, recorded at Marston Lane on 11 February 1987.

Across 62 measured ruffe, the median measured length was 11.1 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 Yare.

See ruffe records across England →

Most recent observation17 August 2023Uea · 4 fish

Largest measured ruffe: 15.4 cm
Median length: 11.1 cm
Fish measured: 62
Survey locations: 10

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
15.4 cm	11 Feb 1987	Marston Lane	17462
14.2 cm	31 May 2005	Cooper Lane	84835
14.2 cm	20 Feb 1987	Uea	17459
14.1 cm	10 Feb 1987	Cooper Lane	17463
14 cm	14 Jul 1992	Upstream Barford Bridge	17468
13.9 cm	1 Jun 2005	Marston Lane	84617
13.4 cm	4 May 1999	Uea	17802
13.3 cm	29 Jul 1992	Upstream Keswick Mill	17475
13.3 cm	10 Feb 1987	Cooper Lane	17463
13.2 cm	23 May 2005	Uea	84813

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
Uea	20 Feb 1987	17 Aug 2023	6
Marston Lane	11 Feb 1987	1 Jun 2005	2
Cooper Lane	10 Feb 1987	31 May 2005	4
Upstream Cringleford Bridge	28 Jul 1992	27 May 2005	2
Upstream Keswick Mill	12 Feb 1987	25 Jun 1999	3
Downstream Barford Bridge	24 Jun 1999	24 Jun 1999	1
Marlingford	11 Mar 1987	16 Jul 1992	2
Algarsthorpe Farm	15 Jul 1992	15 Jul 1992	1
Upstream Barford Bridge	14 Jul 1992	14 Jul 1992	1
Upstream Colton Bridge	7 Jul 1992	7 Jul 1992	1

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

1987–2023

Survey records by year

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

587

088

089

090

091

892

093

094

095

096

097

098

499

000

001

002

003

004

405

006

007

008

009

010

011

012

013

014

015

016

117

018

019

020

021

022

123

Fish measured by surveyors

Measured length distribution

See how the 62 measured fish were spread across different length ranges.

Smallest: 2.8 cm
Lower quarter: 9.4 cm
Median: 11.1 cm
Upper quarter: 12.7 cm
Largest: 15.4 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Yare

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

Pike European eel Roach Dace Chub Perch

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 →