RiverFish

Roach · Rutilus rutilus

Roach in the River Gade

Largest measured roach: 29.2 cm

The largest roach measured in Environment Agency surveys of the River Gade was 29.2 cm, recorded at Cassiobury Park on 17 September 2009.

Across 2,090 measured roach, the median measured length was 12.6 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 Gade.

See roach records across England →

Most recent observation25 April 2024Cura Fisheries · 1 fish
Largest measured roach
29.2 cm
Median length
12.6 cm
Fish measured
2,090
Survey locations
4

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
29.2 cm17 Sept 2009Cassiobury Park118943
28.6 cm17 Sept 2009Cassiobury Park118943
27.7 cm17 Sept 2009Cassiobury Park118943
27.3 cm17 Sept 2009Cassiobury Park118943
27.1 cm2 Jun 2010Cassiobury Park121758
27 cm2 Jun 2010Cassiobury Park121758
25 cm3 Oct 2000Cassiobury Park75768
24.7 cm17 Sept 2009Cassiobury Park118943
24 cm3 Jun 2009Cassiobury Park117317
24 cm15 Jul 2003Cassiobury Park76389

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
Cura Fisheries23 Jul 200425 Apr 20242
Kings Langley15 Jul 200411 Jun 20132
Cassiobury Park3 Oct 200023 Apr 201311
Gadebridge Park26 May 200426 May 20041

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

2000–2024

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 2,090 measured fish were spread across different length ranges.

Smallest
2.8 cm
Lower quarter
10.1 cm
Median
12.6 cm
Upper quarter
15.3 cm
Largest
29.2 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Gade

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

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