Roach · Rutilus rutilus

Roach in the Hatherley Brook

Largest measured roach: 21.6 cm

The largest roach measured in Environment Agency surveys of the Hatherley Brook was 21.6 cm, recorded at Heron Pool, Innsworth on 12 March 2002.

Across 50 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 Hatherley Brook.

See roach records across England →

Most recent observation11 April 2003Longford · 1 fish

Largest measured roach: 21.6 cm
Median length: 12.6 cm
Fish measured: 50
Survey locations: 3

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
21.6 cm	12 Mar 2002	Heron Pool, Innsworth	25180
20.8 cm	3 Aug 1992	Down Hatherley	81208
19.5 cm	12 Mar 2002	Heron Pool, Innsworth	25180
19 cm	3 Aug 1992	Down Hatherley	81208
18.5 cm	3 Aug 1992	Down Hatherley	81208
18.2 cm	3 Aug 1992	Down Hatherley	81208
18.2 cm	3 Aug 1992	Down Hatherley	81208
18.1 cm	12 Mar 2002	Heron Pool, Innsworth	25180
17.5 cm	3 Aug 1992	Down Hatherley	81208
17.5 cm	3 Aug 1992	Down Hatherley	81208

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
Longford	3 Aug 1992	11 Apr 2003	2
Heron Pool, Innsworth	12 Mar 2002	12 Mar 2002	1
Down Hatherley	3 Aug 1992	3 Aug 1992	1

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

1992–2003

Survey records by year

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

292

093

094

095

096

097

098

099

000

001

102

103

Fish measured by surveyors

Measured length distribution

See how the 50 measured fish were spread across different length ranges.

Smallest: 2.8 cm
Lower quarter: 4 cm
Median: 12.6 cm
Upper quarter: 17 cm
Largest: 21.6 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 Hatherley Brook

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

European eel 3-spined stickleback Stone loach

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 →