Roach · Rutilus rutilus

Roach in the Greyfleet Drain FMU

Largest measured roach: 23 cm

The largest roach measured in Environment Agency surveys of the Greyfleet Drain FMU was 23 cm, recorded at Queens Bridge on 4 July 1986.

Across 860 measured roach, the median measured length was 10.4 cm.

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

See roach records across England →

Most recent observation5 June 1995Queens Bridge · 67 fish

Largest measured roach: 23 cm
Median length: 10.4 cm
Fish measured: 860
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
23 cm	4 Jul 1986	Queens Bridge	57628
23 cm	4 Jul 1986	Queens Bridge	57628
22.2 cm	16 Nov 1989	Grimboldby Ings	57636
21.9 cm	16 Nov 1989	Grimboldby Ings	57636
21.9 cm	16 Nov 1989	Grimboldby Ings	57636
21.7 cm	4 Jul 1986	Queens Bridge	57628
21.6 cm	16 Nov 1989	Grimboldby Ings	57636
21.5 cm	4 Jul 1986	Queens Bridge	57628
21.3 cm	4 Jul 1986	Queens Bridge	57628
21.2 cm	16 Nov 1989	Grimboldby Ings	57636

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
Queens Bridge	4 Jul 1986	5 Jun 1995	3
Grimboldby Ings	16 Nov 1989	16 Nov 1989	1
North End Lane	3 Nov 1989	3 Nov 1989	1

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

1986–1995

Survey records by year

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

186

087

088

289

090

091

192

093

094

195

Fish measured by surveyors

Measured length distribution

See how the 860 measured fish were spread across different length ranges.

Smallest: 4 cm
Lower quarter: 9.2 cm
Median: 10.4 cm
Upper quarter: 12.3 cm
Largest: 23 cm

0–99 mm

343

100–199 mm

502

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Greyfleet Drain FMU

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

3-spined stickleback Rudd

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 →