RiverFish

Perch · Perca fluviatilis

Perch in the Main River Yeo

Largest measured perch: 33 cm

The largest perch measured in Environment Agency surveys of the Main River Yeo was 33 cm, recorded at Mudford on 20 June 2007.

Across 269 measured perch, the median measured length was 10.7 cm.

Surveyors recorded weights for 208 perch. The median was 0.5 oz (0.014 kg) and the largest recorded weight was 1 lb 0.5 oz (0.469 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 Yeo.

See perch records across England →

Most recent observation17 July 2014Yeovil Bridge (Te) · 6 fish
Largest measured perch
33 cm
Median length
10.7 cm
Fish measured
269
Survey locations
13

Individual EA measurements

Largest measured perch

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
33 cm20 Jun 2007Mudford105657
33 cm20 Jun 2007Mudford105657
30.5 cm20 Jun 2007Mudford105657
30.2 cm23 Jun 1993Downstream Hainbury Mill79863
29.8 cm20 Jun 2007Mudford105657
28.1 cm20 Jun 2007Mudford105657
25 cm20 Jun 2007Mudford105657
25 cm10 May 2005Pibsbury Pumping Station (Te)84523
24 cm27 Jul 1993Upstream Lake Borehole79815
23.5 cm22 Jun 1993Great Yard, Ilchester79876

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where perch were found

Each point marks a survey location with at least one perch 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 surveyedFirst recordedLast recordedVisits finding perch
Yeovil Bridge (Te)5 Aug 200317 Jul 20144
Mudford20 Jun 200710 Jul 20132
Pibsbury Pumping Station (Te)3 Oct 20039 Jul 20136
Sherborne STW21 Jul 201021 Jul 20101
Thornford14 Jul 201014 Jul 20101
Downstream Sherborne Lake (Te)4 Jun 200312 Jul 20074
Gas Works d/s Ilchester (Te)28 Oct 200321 Jun 20073
Upstream Lake Borehole27 Jul 199327 Jul 19931
Upstream Ashington Bridge29 Jun 199329 Jun 19931
Downstream Hainbury Mill23 Jun 199323 Jun 19931
Great Yard, Ilchester22 Jun 199322 Jun 19931
Downstream Load Bridge10 Jun 199310 Jun 19931
Downstream Ablake8 Jun 19938 Jun 19931

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

1993–2014

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 269 measured fish were spread across different length ranges.

Smallest
5.2 cm
Lower quarter
8.5 cm
Median
10.7 cm
Upper quarter
14 cm
Largest
33 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 208 perch. This is a subset of the measured fish and may not represent the whole population.

Lightest
0.1 oz (0.003 kg)
Lower quarter
0.3 oz (0.008 kg)
Median
0.5 oz (0.014 kg)
Upper quarter
1.5 oz (0.0412 kg)
Heaviest
1 lb 0.5 oz (0.469 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 Yeo

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

Gudgeon European eel Chub Roach Dace Minnow

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 →