RiverFish

Roach · Rutilus rutilus

Roach in the River Main Porth

Largest measured roach: 22.6 cm

The largest roach measured in Environment Agency surveys of the River Main Porth was 22.6 cm, recorded at Rialton Bridge on 28 May 2012.

Across 10 measured roach, the median measured length was 11.8 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 Main Porth.

See roach records across England →

Most recent observation12 June 2015Rialton Bridge · 3 fish
Largest measured roach
22.6 cm
Median length
11.8 cm
Fish measured
10
Survey locations
3

Individual EA measurements

Largest measured roach

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

LengthSurvey dateSurvey locationSurvey ID
22.6 cm28 May 2012Rialton Bridge131281
17.1 cm28 May 2012Rialton Bridge131281
15.1 cm28 May 2012Rialton Bridge131281
14 cm12 Jun 2015Rialton Bridge144939
12 cm11 Jun 2015Tregoose Ford Bridge144938
11.7 cm11 Jun 2015Tregoose Ford Bridge144938
11.3 cm11 Jun 2015Tregoose Ford Bridge144938
11.3 cm11 Jun 2015Tregoose Ford Bridge144938
7.2 cm12 Jun 2015Rialton Bridge144939
5.2 cm12 Jun 2015Rialton Bridge144939

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

Explore the river

Where roach were found

Each point marks a survey location with at least one roach 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 roach
Rialton Bridge15 Sept 200612 Jun 20153
Tregoose Ford Bridge14 Jun 200511 Jun 20153
Melancoose16 Jun 200523 Aug 20062

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

2005–2015

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 10 measured fish were spread across different length ranges.

Smallest
5.2 cm
Lower quarter
11.3 cm
Median
11.9 cm
Upper quarter
14.8 cm
Largest
22.6 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Main Porth

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

Brown / sea trout European eel 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 →