Ruffe · Gymnocephalus cernuus

Ruffe in the Main River Parrett

Largest measured ruffe: 12 cm

The largest ruffe measured in Environment Agency surveys of the Main River Parrett was 12 cm, recorded at Westover Bridge on 17 August 2017.

Across 396 measured ruffe, the median measured length was 7.5 cm.

Surveyors recorded weights for 29 ruffe. The median was 0.4 oz (0.01 kg) and the largest recorded weight was 0.6 oz (0.017 kg).

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

See ruffe records across England →

Most recent observation6 August 2025Pibsbury · 1 fish

Largest measured ruffe: 12 cm
Median length: 7.5 cm
Fish measured: 396
Survey locations: 8

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
12 cm	17 Aug 2017	Westover Bridge	151296
11.9 cm	8 Aug 2013	Pibsbury	137781
11.8 cm	18 Aug 2011	Parchey	127771
11.8 cm	10 Aug 2011	Midelney	128892
11.7 cm	6 Aug 2025	Westover Bridge	178078
11.4 cm	6 Aug 2013	Knapp Br.	137795
11.4 cm	6 Aug 2013	Oath Lock	137784
11 cm	17 Aug 2017	Midelney	151287
11 cm	25 Jul 2009	Pibsbury	118160
10.8 cm	7 Aug 2013	Westover Bridge	137789

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
Westover Bridge	23 Jul 2009	6 Aug 2025	19
Pibsbury	23 Jul 2009	6 Aug 2025	17
Kings Sedgemoor Drain Downstream Gerylake	14 Aug 2013	5 Aug 2025	13
Oath Lock	13 Aug 2009	10 Aug 2023	15
Midelney	12 Aug 2009	19 Aug 2021	10
Gawbridge	4 Sept 2019	4 Sept 2019	1
Knapp Br.	13 Aug 2006	8 Aug 2013	9
Parchey	18 Aug 2011	18 Aug 2011	1

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

2006–2025

Survey records by year

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

606

007

008

809

010

1011

012

1613

014

815

016

817

018

1419

020

421

022

523

024

625

Fish measured by surveyors

Measured length distribution

See how the 396 measured fish were spread across different length ranges.

Smallest: 2.2 cm
Lower quarter: 4.7 cm
Median: 7.5 cm
Upper quarter: 8.5 cm
Largest: 12 cm

0–99 mm

366

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 29 ruffe. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0.2 oz (0.007 kg)
Lower quarter: 0.3 oz (0.009 kg)
Median: 0.4 oz (0.01 kg)
Upper quarter: 0.4 oz (0.011 kg)
Heaviest: 0.6 oz (0.017 kg)

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

More fish in this river

Explore the Main River Parrett

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

European eel Roach Perch Gudgeon 3-spined stickleback Pike

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 →