Ruffe · Gymnocephalus cernuus

Ruffe in the Lower Glen

Largest measured ruffe: 17 cm

The largest ruffe measured in Environment Agency surveys of the Lower Glen was 17 cm, recorded at Tongue End on 20 May 1991.

Across 252 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 Lower Glen.

See ruffe records across England →

Most recent observation9 March 2011Guthram Gowt · 2 fish

Largest measured ruffe: 17 cm
Median length: 6.5 cm
Fish measured: 252
Survey locations: 9

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
17 cm	20 May 1991	Tongue End	54305
13.4 cm	6 Apr 2009	West Pinchbeck Road Bridge	117203
13.2 cm	2 Mar 2011	West Pinchbeck Road Bridge	125962
13.2 cm	8 Apr 2010	West Pinchbeck Road Bridge	123203
13 cm	18 Apr 2006	West Pinchbeck Road Bridge	101897
13 cm	10 May 2005	West Pinchbeck Road Bridge	86711
12.5 cm	26 Apr 2002	Guthram Gowt	72994
12.5 cm	26 May 1994	Surfleet Road Bridge	54326
12 cm	1 Oct 2003	West Pinchbeck Road Bridge	78335
12 cm	23 May 1991	Old Railway Bridge	54306

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
Guthram Gowt	21 May 1991	9 Mar 2011	10
Flax Mill	30 May 1991	8 Mar 2011	4
West Pinchbeck Road Bridge	18 Oct 1988	2 Mar 2011	12
Tongue End	12 Oct 1988	1 Apr 2010	8
Surfleet Road Bridge	26 Aug 1986	11 May 2005	8
Money Bridge	29 May 1991	24 Apr 2002	5
Old Railway Bridge	23 May 1991	26 Sept 1994	2
Baston	17 May 1991	17 May 1991	1
Thurlby Fen	8 May 1991	8 May 1991	1

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

1986–2011

Survey records by year

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

186

087

388

089

090

991

092

093

794

095

096

097

098

499

000

001

402

303

304

305

206

207

308

109

310

311

Fish measured by surveyors

Measured length distribution

See how the 252 measured fish were spread across different length ranges.

Smallest: 3 cm
Lower quarter: 5.5 cm
Median: 6.5 cm
Upper quarter: 8.5 cm
Largest: 17 cm

0–99 mm

214

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Lower Glen

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

Pike Perch Roach Dace Bleak Tench

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 →