Roach · Rutilus rutilus

Roach in the River Medlock

Largest measured roach: 18.2 cm

The largest roach measured in Environment Agency surveys of the River Medlock was 18.2 cm, recorded at Mdme05 on 24 April 2006.

Across 42 measured roach, the median measured length was 13.2 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 Medlock.

See roach records across England →

Most recent observation24 April 2006Mdme05 · 1 fish

Largest measured roach: 18.2 cm
Median length: 13.2 cm
Fish measured: 42
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
18.2 cm	24 Apr 2006	Mdme05	90737
17.6 cm	10 Aug 2001	Mdme10	55490
17.4 cm	19 May 2005	Mdme05	84593
17.2 cm	21 Aug 2001	Mdme05	55471
16.4 cm	25 May 2004	Mdme05	80155
16.2 cm	10 Aug 2001	Mdme10	55490
16.1 cm	10 Aug 2001	Mdme10	55490
15.9 cm	21 Aug 2001	Mdme05	55471
15.8 cm	25 May 2004	Mdme05	80155
15.1 cm	10 Aug 2001	Mdme10	55490

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
Mdme05	21 Aug 2001	24 Apr 2006	4
Mdme10	10 Aug 2001	19 May 2005	3
Mdme15	9 Jul 2001	9 Jul 2001	1

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

2001–2006

Survey records by year

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

301

002

103

104

205

106

Fish measured by surveyors

Measured length distribution

See how the 42 measured fish were spread across different length ranges.

Smallest: 4 cm
Lower quarter: 10 cm
Median: 13.2 cm
Upper quarter: 15 cm
Largest: 18.2 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Medlock

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

Brown / sea trout Stone loach Minnow 3-spined stickleback Chub Perch

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 →