Ruffe · Gymnocephalus cernuus

Ruffe in the River Wroxham Broad

Largest measured ruffe: 13.7 cm

The largest ruffe measured in Environment Agency surveys of the River Wroxham Broad was 13.7 cm, recorded at 198 on 5 September 2002.

Across 596 measured ruffe, the median measured length was 6.5 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 Wroxham Broad.

See ruffe records across England →

Most recent observation11 August 2005196 · 9 fish

Largest measured ruffe: 13.7 cm
Median length: 6.5 cm
Fish measured: 596
Survey locations: 7

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
13.7 cm	5 Sept 2002	198	61724
12.5 cm	11 Sept 1991	198	17628
11.8 cm	13 Sept 1991	196	17627
11.5 cm	5 Sept 2002	206	61722
11.5 cm	10 Sept 1991	206	17631
11.4 cm	12 Aug 2003	204	77068
11.2 cm	11 Aug 2004	587	83662
11.2 cm	11 Aug 2004	587	83662
11.1 cm	10 Sept 1991	206	17631
10.5 cm	13 Sept 1991	196	17627

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
196	13 Sept 1991	11 Aug 2005	5
586	13 Aug 2003	12 Aug 2004	2
587	4 Sept 2002	11 Aug 2004	3
206	10 Sept 1991	11 Aug 2004	4
204	2 Oct 1991	11 Aug 2004	3
199	9 Sept 1991	5 Sept 2002	2
198	11 Sept 1991	5 Sept 2002	2

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

1991–2005

Survey records by year

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

591

092

093

094

095

096

097

098

099

000

001

502

503

504

105

Fish measured by surveyors

Measured length distribution

See how the 596 measured fish were spread across different length ranges.

Smallest: 3.5 cm
Lower quarter: 5.5 cm
Median: 6.5 cm
Upper quarter: 7.5 cm
Largest: 13.7 cm

0–99 mm

578

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Wroxham Broad

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

Roach Perch Common bream Pike Flounder Gudgeon

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 →