RiverFish

Roach · Rutilus rutilus

Roach in the St Ives Chub Stream

Largest measured roach: 33.3 cm

The largest roach measured in Environment Agency surveys of the St Ives Chub Stream was 33.3 cm, recorded at St Ives Chub Stream on 14 August 1995.

Across 428 measured roach, the median measured length was 12.2 cm.

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

See roach records across England →

Most recent observation8 April 2025St Ives Chub Stream · 1,280 fish
Largest measured roach
33.3 cm
Median length
12.2 cm
Fish measured
428
Survey locations
2

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
33.3 cm14 Aug 1995St Ives Chub Stream29303
32.8 cm14 Aug 1995St Ives Chub Stream29303
30.3 cm14 Aug 1995St Ives Chub Stream29303
28.3 cm14 Aug 1995St Ives Chub Stream29303
26.5 cm8 Apr 2025St Ives Chub Stream176250
25.9 cm8 Apr 2025St Ives Chub Stream176250
25.3 cm11 Sept 1992St Ives Chub Stream29302
24.5 cm8 Apr 2025St Ives Chub Stream176250
24 cm8 Apr 2025St Ives Chub Stream176250
23.3 cm14 Aug 1995St Ives Chub Stream29303

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
St Ives Chub Stream11 Sept 19928 Apr 20257
St Ives Chub Stream (Eel Monitoring)9 Jul 20139 Jul 20131

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

1992–2025

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 428 measured fish were spread across different length ranges.

Smallest
3.8 cm
Lower quarter
7.8 cm
Median
12.2 cm
Upper quarter
15.8 cm
Largest
33.3 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the St Ives Chub Stream

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

European eel Chub Dace Gudgeon Perch Bleak

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 →