RiverFish

Roach · Rutilus rutilus

Roach in the River Deben (Main Reaches)

Largest measured roach: 40.5 cm

The largest roach measured in Environment Agency surveys of the River Deben (Main Reaches) was 40.5 cm, recorded at Upstream Cretingham on 25 November 1987.

Across 9,210 measured roach, the median measured length was 10.6 cm.

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

See roach records across England →

Most recent observation14 April 2026Downstream Glevering Hall · 12 fish
Largest measured roach
40.5 cm
Median length
10.6 cm
Fish measured
9,210
Survey locations
26

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
40.5 cm25 Nov 1987Upstream Cretingham4053
32.1 cm2 Aug 1994Downstream Glevering Hall4076
32 cm9 Apr 2004Upstream Kettleburgh103948
31.7 cm2 Aug 1994Downstream Glevering Hall4076
31.2 cm6 Jun 1991Downstream Glevering Hall4065
31.1 cm2 Aug 1994Downstream Glevering Hall4076
31 cm15 Dec 1997Downstream Glevering Hall4091
30.5 cm19 Feb 2004Melton Mill to Ufford Mill103966
30.3 cm2 Aug 1994Downstream Glevering Hall4076
30.1 cm6 Jun 1991Downstream Glevering Hall4065

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
Downstream Glevering Hall7 Dec 198714 Apr 20268
White Womans Lane Fry Survey26 Sept 202419 Sept 20252
Ufford Hole Fry Survey19 Sept 202519 Sept 20251
Glevering Mill Fry Survey25 Sept 202419 Sept 20252
Downstream Sanctuary Bridge Fry Survey25 Sept 202418 Sept 20252
Ufford3 Aug 199414 Apr 20256
Upstream Cretingham25 Nov 198710 Apr 20258
Crettingham Fry Survey25 Sept 202425 Sept 20241
Upstream Kettleburgh15 Dec 198721 Apr 20228
Downstream Wickham Market9 Dec 198729 Apr 20105
Low Farm 217 Dec 199726 Mar 20042
Downstream Letheringham Mill4 Mar 20044 Mar 20041
Upstream Glovering House3 Mar 20043 Mar 20041
Upstream Wickham Mill2 Mar 20042 Mar 20041
Wickham Market to Loudham27 Feb 200427 Feb 20041
Naunton Hall to Loudham Mill25 Feb 200425 Feb 20041
Low Farm to Ufford Mill20 Feb 200420 Feb 20041
Melton Mill to Ufford Mill19 Feb 200419 Feb 20041
Doves Farm5 Feb 19985 Feb 19981
Brandeston School3 Feb 19983 Feb 19981
Loudham Decoy11 May 19918 Dec 19973
Naunton Hall Farm14 Dec 19872 Dec 19974
Low Farm10 Dec 19871 Dec 19973
Melton Sluice11 Dec 198727 Nov 19973
Upstream Wickham Market8 Dec 19872 Aug 19943
Easton Farm Park2 Dec 19872 Aug 19943

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

1987–2026

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 9,210 measured fish were spread across different length ranges.

Smallest
1.5 cm
Lower quarter
8 cm
Median
10.6 cm
Upper quarter
14 cm
Largest
40.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Deben (Main Reaches)

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

Pike European eel Perch Stone loach Dace Gudgeon

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 →