Ruffe · Gymnocephalus cernuus

Ruffe in the River Don

Largest measured ruffe: 16.8 cm

The largest ruffe measured in Environment Agency surveys of the River Don was 16.8 cm, recorded at Kilnhurst Bridge on 14 July 2016.

Across 48 measured ruffe, the median measured length was 9.2 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 Don.

See ruffe records across England →

Most recent observation2 August 2017Hexthorpe · 2 fish

Largest measured ruffe: 16.8 cm
Median length: 9.2 cm
Fish measured: 48
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
16.8 cm	14 Jul 2016	Kilnhurst Bridge	148533
16.4 cm	28 Jul 2012	Blonk Street, sheffield	133189
11.7 cm	14 Jul 2016	Blackburn Meadows d/s weir DON/CO/TEMP/001	148534
11.6 cm	2 Oct 2014	Blonk Street, sheffield	143241
11.5 cm	21 Aug 2013	Blonk Street, sheffield	140079
11.3 cm	7 Jul 2010	Blackburn Meadows d/s weir DON/CO/TEMP/001	124940
11.1 cm	2 Aug 2012	Nursery Street, Sheffield	133187
11.1 cm	3 Jul 2012	Blackburn Meadows d/s weir DON/CO/TEMP/001	132267
11 cm	3 Jul 2012	Blackburn Meadows d/s weir DON/CO/TEMP/001	132267
10.8 cm	9 Jul 2013	Blackburn Meadows d/s weir DON/CO/TEMP/001	137111

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
Hexthorpe	30 Jun 2011	2 Aug 2017	2
Doncaster (crimpsal) DON/CO/TEMP/003	4 Jul 2017	4 Jul 2017	1
Kilnhurst Bridge	14 Jul 2016	14 Jul 2016	1
Blackburn Meadows d/s weir DON/CO/TEMP/001	5 Jul 2005	14 Jul 2016	11
Blonk Street, sheffield	30 Jul 2011	2 Oct 2014	4
Effingham Street, sheffield	29 Jul 2012	19 Aug 2013	2
Nursery Street, Sheffield	30 Jul 2011	2 Aug 2012	2

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

2005–2017

Survey records by year

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

205

106

107

008

109

110

411

412

313

214

015

216

217

Fish measured by surveyors

Measured length distribution

See how the 48 measured fish were spread across different length ranges.

Smallest: 4.5 cm
Lower quarter: 8.2 cm
Median: 9.3 cm
Upper quarter: 10.5 cm
Largest: 16.8 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Don

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

3-spined stickleback Brown / sea trout Gudgeon Roach Minnow 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 →