RiverFish

Roach · Rutilus rutilus

Roach in the River Ash

Largest measured roach: 27.1 cm

The largest roach measured in Environment Agency surveys of the River Ash was 27.1 cm, recorded at Blakesware estate enhancement upstream on 3 March 2003.

Across 168 measured roach, the median measured length was 13.4 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 Ash.

See roach records across England →

Most recent observation19 September 2023Hollycross Road · 38 fish
Largest measured roach
27.1 cm
Median length
13.4 cm
Fish measured
168
Survey locations
5

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
27.1 cm3 Mar 2003Blakesware estate enhancement upstream78747
24.8 cm4 Mar 2003Blakesware estate enhancement downstream78750
24.7 cm3 Mar 2003Blakesware estate enhancement upstream78747
24.4 cm3 Mar 2003Blakesware estate enhancement upstream78747
23.8 cm4 Mar 2003Blakesware estate enhancement downstream78750
22.9 cm3 Mar 2003Blakesware estate enhancement upstream78747
22.7 cm4 Mar 2003Blakesware estate enhancement downstream78750
22.5 cm3 Mar 2003Blakesware estate enhancement upstream78747
22.3 cm4 Mar 2003Blakesware estate enhancement downstream78750
22.2 cm13 Oct 2003Blakesware Estate77432

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
Hollycross Road9 Oct 200919 Sept 20237
Watersplace Farm17 Sept 201517 Sept 20151
Blakesware estate enhancement downstream4 Mar 20037 Jun 20052
Blakesware Estate13 Oct 200313 Oct 20031
Blakesware estate enhancement upstream3 Mar 20033 Mar 20031

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

2003–2023

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 168 measured fish were spread across different length ranges.

Smallest
5.3 cm
Lower quarter
11.2 cm
Median
13.5 cm
Upper quarter
16.7 cm
Largest
27.1 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Ash

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

Brown / sea trout Bullhead Minnow 3-spined stickleback Stone loach Brook lamprey

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 →