Roach · Rutilus rutilus

Roach in the Chess Stream

Largest measured roach: 121.1 cm

The largest roach measured in Environment Agency surveys of the Chess Stream was 121.1 cm, recorded at Park Farm on 24 July 1997.

Across 452 measured roach, the median measured length was 10.3 cm.

Surveyors recorded weights for 378 roach. The median was 0.5 oz (0.015 kg) and the largest recorded weight was 6.6 oz (0.186 kg).

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

See roach records across England →

Most recent observation13 May 2014Downstream Chess Bridge · 74 fish

Largest measured roach: 121.1 cm
Median length: 10.3 cm
Fish measured: 452
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.

Length	Survey date	Survey location	Survey ID
121.1 cm	24 Jul 1997	Park Farm	52041
22 cm	19 Sept 2007	Parsonage Wood	107234
21.3 cm	12 Aug 2005	Parsonage Wood	87486
20.9 cm	28 Aug 2002	Downstream Chess Bridge	62943
20.2 cm	30 Aug 2002	Park Farm	63580
20.1 cm	12 Aug 2005	Parsonage Wood	87486
20 cm	20 Aug 2002	North Park Farm sq	55331
18.7 cm	28 Aug 2002	Downstream Chess Bridge	62943
18.5 cm	13 May 2014	Downstream Chess Bridge	140777
18.5 cm	14 Sept 2007	Park Farm	107269

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 surveyed	First recorded	Last recorded	Visits finding roach
Downstream Chess Bridge	28 Aug 2002	13 May 2014	2
Parsonage Wood	5 Oct 2004	19 Sept 2007	4
Park Farm	24 Jul 1997	14 Sept 2007	3
North Park Farm sq	20 Aug 2002	20 Aug 2002	1

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

1997–2014

Survey records by year

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

197

098

099

000

001

302

003

104

105

106

207

008

009

010

011

012

013

114

Fish measured by surveyors

Measured length distribution

See how the 452 measured fish were spread across different length ranges.

Smallest: 1.5 cm
Lower quarter: 7.6 cm
Median: 10.4 cm
Upper quarter: 12.7 cm
Largest: 121.1 cm

0–99 mm

198

100–199 mm

247

200–299 mm

1200–1299 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 378 roach. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0 oz (0.001 kg)
Lower quarter: 0.2 oz (0.006 kg)
Median: 0.5 oz (0.015 kg)
Upper quarter: 1.1 oz (0.032 kg)
Heaviest: 6.6 oz (0.186 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the Chess Stream

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

European eel Gudgeon Stone loach 3-spined stickleback Bullhead Brown / sea trout

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 →