RiverFish

Roach · Rutilus rutilus

Roach in the Main Avon Sites

Largest measured roach: 39.1 cm

The largest roach measured in Environment Agency surveys of the Main Avon Sites was 39.1 cm, recorded at A2R Downton-Breamore on 13 April 2005.

Across 808 measured roach, the median measured length was 18 cm.

Surveyors recorded one individual weight: 2 lb 14 oz (1.31 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 Avon Sites.

See roach records across England →

Most recent observation14 October 2025Avon Bridge · 1 fish
Largest measured roach
39.1 cm
Median length
18 cm
Fish measured
808
Survey locations
20

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
39.1 cm13 Apr 2005A2R Downton-Breamore84381
37.5 cm14 Jun 2004A2R Downton-Breamore80103
37.2 cm14 Jun 2004A2R Downton-Breamore80103
36 cm17 May 2005A6R Avon Turn - Winkton84560
36 cm10 May 2005A1R Salisbury to Kitts Island84525
36 cm10 May 2005A1R Salisbury to Kitts Island84525
36 cm10 May 2005A1R Salisbury to Kitts Island84525
35 cm17 May 2005A6R Avon Turn - Winkton84560
34.5 cm10 May 2005A1R Salisbury to Kitts Island84525
34.5 cm10 May 2005A1R Salisbury to Kitts Island84525

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
Avon Bridge16 Oct 200814 Oct 20256
Salisbury Wetherspoons CPUE8 Aug 201925 Sept 20255
Ham Carrier13 Oct 200930 Aug 202310
Amesbury tank crossing4 Oct 201225 Aug 20233
Hatchpool at Great Weir7 Sept 20227 Sept 20221
Stratford -Sub-Castle9 Sept 20145 Sept 20224
River Avon at Maltings Car Park14 Oct 202114 Oct 20211
Bugmoor Hatches4 Sept 20144 Sept 20141
Amesbury d/s Queensbury Bridge3 Sept 20143 Sept 20141
Salisbury Wetherspoons12 Sept 201219 Aug 20142
Middle Woodford Mill16 Oct 201216 Oct 20121
Navigation11 Sept 200124 Oct 20113
A7R Royalty Gt.Weir to Clay Pool18 May 200411 May 20115
A1RA Bemerton Farm - EA Boom site4 May 20114 May 20111
A2R Downton-Breamore14 Jun 20043 May 20113
A1R Salisbury to Kitts Island3 Jun 20048 May 20084
A6R Avon Turn - Winkton20 May 20046 May 20083
A4R Ibsley to Ringwood26 Apr 200524 Apr 20083
A5R Ringwood to Bickerley Stream Confluence27 May 200428 Apr 20052
A3R Burgate to East Mills14 Apr 200514 Apr 20051

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

2001–2025

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 808 measured fish were spread across different length ranges.

Smallest
3 cm
Lower quarter
14.6 cm
Median
18 cm
Upper quarter
21.6 cm
Largest
39.1 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

One individual weight was recorded for this fish and river. This is a subset of the measured fish and may not represent the whole population.

Recorded weight
2 lb 14 oz (1.31 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 Avon Sites

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

Bullhead Minnow Stone loach Brown / sea trout Atlantic salmon European eel

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 →