Ruffe · Gymnocephalus cernuus

Ruffe in the Huntspill/South Drain Catchment

Largest measured ruffe: 10.7 cm

The largest ruffe measured in Environment Agency surveys of the Huntspill/South Drain Catchment was 10.7 cm, recorded at Woolavington Bridge on 9 April 2019.

Across 13,934 measured ruffe, the median measured length was 5.5 cm.

Surveyors recorded weights for 3,201 ruffe. The median was 0.1 oz (0.003 kg) and the largest recorded weight was 0.5 oz (0.015 kg).

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the Huntspill/South Drain Catchment.

See ruffe records across England →

Most recent observation20 April 2023Woolavington Bridge · 14 fish

Largest measured ruffe: 10.7 cm
Median length: 5.5 cm
Fish measured: 13,934
Survey locations: 4

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
10.7 cm	9 Apr 2019	Woolavington Bridge	154420
10.2 cm	9 Apr 2019	Woolavington Bridge	154420
10.1 cm	20 Apr 2023	Woolavington Bridge	162300
10.1 cm	9 Apr 2019	Woolavington Bridge	154420
10 cm	20 Apr 2023	Woolavington Bridge	162300
10 cm	9 Apr 2019	Woolavington Bridge	154420
10 cm	17 Aug 2007	Shapwick	106382
9.9 cm	9 Apr 2019	Woolavington Bridge	154420
9.8 cm	9 Apr 2019	Woolavington Bridge	154420
9.8 cm	9 Apr 2019	Woolavington Bridge	154420

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
Woolavington Bridge	18 Apr 2007	20 Apr 2023	8
Sloway Lane	17 Apr 2007	30 May 2013	3
Gold Corner	19 Apr 2007	28 May 2013	5
Shapwick	17 Aug 2007	17 Aug 2007	1

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

2007–2023

Survey records by year

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

407

308

209

210

011

012

313

014

015

116

017

018

119

020

021

022

123

Fish measured by surveyors

Measured length distribution

See how the 13,934 measured fish were spread across different length ranges.

Smallest: 2.5 cm
Lower quarter: 4 cm
Median: 5.5 cm
Upper quarter: 6 cm
Largest: 10.7 cm

0–99 mm

13927

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 3,201 ruffe. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0 oz (0.001 kg)
Lower quarter: 0.1 oz (0.003 kg)
Median: 0.1 oz (0.003 kg)
Upper quarter: 0.1 oz (0.004 kg)
Heaviest: 0.5 oz (0.015 kg)

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

More fish in this river

Explore the Huntspill/South Drain Catchment

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

Perch Pike Roach Common bream Silver bream Rudd

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 →