Roach · Rutilus rutilus

Roach in the Hoo Brook

Largest measured roach: 22.1 cm

The largest roach measured in Environment Agency surveys of the Hoo Brook was 22.1 cm, recorded at Hill Pool on 11 April 2000.

Across 116 measured roach, the median measured length was 10.7 cm.

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

See roach records across England →

Most recent observation17 September 2015Spennels Nature Reserve fish refuge · 63 fish

Largest measured roach: 22.1 cm
Median length: 10.7 cm
Fish measured: 116
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
22.1 cm	11 Apr 2000	Hill Pool	73612
21.7 cm	11 Apr 2000	Hill Pool	73612
20.5 cm	11 Apr 2000	Hill Pool	73612
20.5 cm	11 Apr 2000	Hill Pool	73612
20.3 cm	11 Apr 2000	Hill Pool	73612
19.8 cm	11 Apr 2000	Hill Pool	73612
19.5 cm	25 Jun 2013	US car park Spennels Nature Reserve	138124
19.4 cm	11 Apr 2000	Hill Pool	73612
19.1 cm	11 Apr 2000	Hill Pool	73612
18.7 cm	25 Jun 2013	US car park Spennels Nature Reserve	138124

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
Spennels Nature Reserve fish refuge	17 Sept 2015	17 Sept 2015	1
US car park Spennels Nature Reserve	25 Jun 2013	25 Jun 2013	1
Stone/Dunclent Farm	11 Apr 2000	11 Apr 2000	1
Hill Pool	11 Apr 2000	11 Apr 2000	1

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

2000–2015

Survey records by year

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

200

001

002

003

004

005

006

007

008

009

010

011

012

113

014

115

Fish measured by surveyors

Measured length distribution

See how the 116 measured fish were spread across different length ranges.

Smallest: 3.3 cm
Lower quarter: 9.5 cm
Median: 10.7 cm
Upper quarter: 14.9 cm
Largest: 22.1 cm

0–99 mm

100–199 mm

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Hoo Brook

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

Brown / sea trout Bullhead Perch European eel Gudgeon

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 →