Ruffe · Gymnocephalus cernuus

Ruffe in the Sowy River

Largest measured ruffe: 10.1 cm

The largest ruffe measured in Environment Agency surveys of the Sowy River was 10.1 cm, recorded at Monksleaze Clyse (Te) on 6 July 2011.

Across 54 measured ruffe, the median measured length was 8.2 cm.

Surveyors recorded weights for 3 ruffe. The median was 0.2 oz (0.007 kg) and the largest recorded weight was 0.4 oz (0.011 kg).

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the Sowy River.

See ruffe records across England →

Most recent observation9 July 2014Monksleaze Clyse (Te) · 1 fish

Largest measured ruffe: 10.1 cm
Median length: 8.2 cm
Fish measured: 54
Survey locations: 2

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
10.1 cm	6 Jul 2011	Monksleaze Clyse (Te)	126866
9.4 cm	8 Jul 2014	Beer Wall	141658
9.1 cm	8 Jul 2014	Beer Wall	141658
9 cm	8 Jul 2014	Beer Wall	141658
8.9 cm	8 Jul 2014	Beer Wall	141658
8.8 cm	8 Jul 2014	Beer Wall	141658
8.8 cm	6 Oct 2005	Monksleaze Clyse (Te)	86850
8.7 cm	8 Jul 2014	Beer Wall	141658
8.7 cm	8 Jul 2014	Beer Wall	141658
8.7 cm	8 Jul 2014	Beer Wall	141658

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
Monksleaze Clyse (Te)	6 Oct 2005	9 Jul 2014	3
Beer Wall	14 Jul 2011	8 Jul 2014	2

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

2005–2014

Survey records by year

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

105

006

007

008

009

010

211

012

013

214

Fish measured by surveyors

Measured length distribution

See how the 54 measured fish were spread across different length ranges.

Smallest: 6.1 cm
Lower quarter: 7.8 cm
Median: 8.2 cm
Upper quarter: 8.6 cm
Largest: 10.1 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 3 ruffe. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0.1 oz (0.004 kg)
Lower quarter: 0.2 oz (0.0055 kg)
Median: 0.2 oz (0.007 kg)
Upper quarter: 0.3 oz (0.009 kg)
Heaviest: 0.4 oz (0.011 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the Sowy River

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

Roach Perch Pike Chub Motherless minnow / Sunbleak Silver bream

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 →