Ruffe · Gymnocephalus cernuus

Ruffe in the River Romney - Old Windsor

Largest measured ruffe: 13.9 cm

The largest ruffe measured in Environment Agency surveys of the River Romney - Old Windsor was 13.9 cm, recorded at Downstream Datchet Intake on 7 September 2011.

Across 4 measured ruffe, the median measured length was 10 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 Romney - Old Windsor.

See ruffe records across England →

Most recent observation7 September 2011Downstream Datchet Intake · 1 fish

Largest measured ruffe: 13.9 cm
Median length: 10 cm
Fish measured: 4
Survey locations: 5

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
13.9 cm	7 Sept 2011	Downstream Datchet Intake	128323
10.4 cm	5 Sept 2008	Old Windsor Lock Cut	114343
9.6 cm	7 Sept 2006	Blackpotts	101413
9.2 cm	7 Sept 2006	Romney Weir Stream	101411

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 Datchet Intake	7 Sept 2011	7 Sept 2011	1
Old Windsor Lock Cut	5 Sept 2008	5 Sept 2008	1
Romney Weir Stream	7 Sept 2006	7 Sept 2006	1
Blackpotts	7 Sept 2006	7 Sept 2006	1
Romney Main	1 Sept 2001	1 Sept 2001	1

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

2001–2011

Survey records by year

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

101

002

003

004

005

206

007

108

009

010

111

Fish measured by surveyors

Measured length distribution

See how the 4 measured fish were spread across different length ranges.

Smallest: 9.2 cm
Lower quarter: 9.5 cm
Median: 10 cm
Upper quarter: 11.3 cm
Largest: 13.9 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Romney - Old Windsor

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

Pike Roach Dace Bleak European eel 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 →