Roach · Rutilus rutilus

Roach in the Long Eau Riffles

Largest measured roach: 21.6 cm

The largest roach measured in Environment Agency surveys of the Long Eau Riffles was 21.6 cm, recorded at No Name - LIN9X on 24 August 1995.

Across 5,765 measured roach, the median measured length was 8 cm.

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

See roach records across England →

Most recent observation26 September 1996No Name - LIN6X · 59 fish

Largest measured roach: 21.6 cm
Median length: 8 cm
Fish measured: 5,765
Survey locations: 16

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	24 Aug 1995	No Name - LIN9X	69623
20.7 cm	24 Sept 1996	No Name - LIN9X	69643
20.4 cm	24 Aug 1995	No Name - LIN9X	69623
20.3 cm	4 Sept 1995	No Name - LIN14X	69628
20.2 cm	4 Sept 1995	No Name - LIN14X	69628
20 cm	4 Sept 1995	No Name - LIN14X	69628
19.9 cm	19 Aug 1994	No Name - LIN11X	69584
19.8 cm	24 Aug 1995	No Name - LIN9X	69623
19.6 cm	24 Aug 1995	No Name - LIN9X	69623
19.4 cm	24 Aug 1995	No Name - LIN9X	69623

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
No Name - LIN6X	23 Aug 1995	26 Sept 1996	2
No Name - LIN8XX	15 Sept 1995	25 Sept 1996	2
No Name - LIN8X	17 Aug 1994	25 Sept 1996	3
No Name - LIN7X	17 Aug 1994	25 Sept 1996	3
No Name - LIN9XX	18 Sept 1995	24 Sept 1996	2
No Name - LIN9X	16 Aug 1994	24 Sept 1996	3
No Name - LIN10X	16 Aug 1994	24 Sept 1996	3
No Name - LIN12X	19 Aug 1994	20 Sept 1996	3
No Name - LIN11X	19 Aug 1994	20 Sept 1996	3
No Name - LIN13X	22 Aug 1994	19 Sept 1996	3
No Name - LIN14X	22 Aug 1994	18 Sept 1996	3
No Name - LIN15X	22 Aug 1994	17 Sept 1996	3
No Name - LIN10XX	18 Sept 1995	18 Sept 1995	1
No Name - LIN7XX	15 Sept 1995	15 Sept 1995	1
No Name - LIN5X	18 Aug 1994	18 Aug 1994	1
No Name - LIN4X	18 Aug 1994	18 Aug 1994	1

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

1994–1996

Survey records by year

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

1194

1495

1296

Fish measured by surveyors

Measured length distribution

See how the 5,765 measured fish were spread across different length ranges.

Smallest: 2 cm
Lower quarter: 7.1 cm
Median: 8 cm
Upper quarter: 11.5 cm
Largest: 21.6 cm

0–99 mm

3866

100–199 mm

1893

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Long Eau Riffles

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

3-spined stickleback Stone loach Dace 10-spined stickleback Pike Silver bream

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 →