Ruffe · Gymnocephalus cernuus

Ruffe in the River Old Windsor - Bell

Largest measured ruffe: 12 cm

The largest ruffe measured in Environment Agency surveys of the River Old Windsor - Bell was 12 cm, recorded at Ham Loop on 10 September 2009.

Across 8 measured ruffe, the median measured length was 9.8 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 Old Windsor - Bell.

See ruffe records across England →

Most recent observation3 September 2014Ham Loop · 1 fish

Largest measured ruffe: 12 cm
Median length: 9.8 cm
Fish measured: 8
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
12 cm	10 Sept 2009	Ham Loop	119012
11.2 cm	7 Sept 2005	Lower Old Windsor Main Channel	86273
10.6 cm	13 Sept 2002	Old Windsor, Weir Pool	72011
10 cm	13 Sept 2002	Old Windsor, Weir Pool	72011
9.6 cm	5 Sept 2008	Ham Loop	114308
9.1 cm	5 Sept 2008	Ham Loop	114308
8 cm	3 Sept 2014	Ham Loop	142614
7 cm	13 Sept 2002	Old Windsor, Weir Pool	72011

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
Ham Loop	5 Sept 2008	3 Sept 2014	3
Lower Old Windsor Main Channel	7 Sept 2005	7 Sept 2005	1
Old Windsor, Weir Pool	13 Sept 2002	13 Sept 2002	1

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

2002–2014

Survey records by year

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

102

003

004

105

006

007

108

109

010

011

012

013

114

Fish measured by surveyors

Measured length distribution

See how the 8 measured fish were spread across different length ranges.

Smallest: 7 cm
Lower quarter: 8.8 cm
Median: 9.8 cm
Upper quarter: 10.8 cm
Largest: 12 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Old Windsor - Bell

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

Roach Perch Pike Bleak European eel Chub

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 →