RiverFish

Roach · Rutilus rutilus

Roach in the River Ravensbourne

Largest measured roach: 13.3 cm

The largest roach measured in Environment Agency surveys of the River Ravensbourne was 13.3 cm, recorded at Deptford Creek on 26 November 1991.

Across 17 measured roach, the median measured length was 6.5 cm.

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

See roach records across England →

Most recent observation29 October 2013Norman Park · 1 fish
Largest measured roach
13.3 cm
Median length
6.5 cm
Fish measured
17
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.

LengthSurvey dateSurvey locationSurvey ID
13.3 cm26 Nov 1991Deptford Creek122320
10.2 cm29 Oct 2013Norman Park139945
8.2 cm8 Apr 2008Brook Mill Park Enhancement Site110850
7.9 cm8 Apr 2008Brook Mill Park Enhancement Site110850
7.6 cm8 Apr 2008Brook Mill Park Enhancement Site110850
7.1 cm8 Apr 2008Brook Mill Park Enhancement Site110850
7.1 cm8 Apr 2008Brook Mill Park Enhancement Site110850
6.7 cm8 Apr 2008Brook Mill Park Enhancement Site110850
6.5 cm8 Apr 2008Brook Mill Park Enhancement Site110850
6.5 cm8 Apr 2008Brook Mill Park Enhancement Site110850

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 surveyedFirst recordedLast recordedVisits finding roach
Norman Park29 Oct 201329 Oct 20131
Brook Mill Park Enhancement Site8 Apr 20088 Apr 20081
Deptford Creek26 Nov 199126 Nov 19911

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

1991–2013

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 17 measured fish were spread across different length ranges.

Smallest
4.8 cm
Lower quarter
6.3 cm
Median
6.5 cm
Upper quarter
7.6 cm
Largest
13.3 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Ravensbourne

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

3-spined stickleback European eel Stone loach Common goby Flounder

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 →