RiverFish

Common bream · Abramis brama

Common bream in the River Colne

Largest measured common bream: 53.8 cm

The largest common bream measured in Environment Agency surveys of the River Colne was 53.8 cm, recorded at Merchant Taylor on 27 June 2007.

Across 474 measured common bream, the median measured length was 8.4 cm.

Surveyors recorded weights for 22 common bream. The median was 1.4 oz (0.0388 kg) and the largest recorded weight was 3 lb 11.5 oz (1.69 kg).

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

See common bream records across England →

Most recent observation21 July 2026Uxbridge · 1 fish
Largest measured common bream
53.8 cm
Median length
8.4 cm
Fish measured
474
Survey locations
16

Individual EA measurements

Largest measured common bream

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
53.8 cm27 Jun 2007Merchant Taylor105718
53 cm19 Feb 2004Elms Lake79907
51 cm19 Feb 2004Elms Lake79907
49.5 cm22 Nov 2001Springwell Lane73301
48.3 cm27 Jun 2007Merchant Taylor105718
48.1 cm16 Sept 2013Merchant Taylor Backwater138782
47.6 cm26 Aug 2009Merchant Taylor118660
47 cm15 Apr 2010Merchant Taylor121390
47 cm22 Nov 2001Springwell Lane73301
47 cm22 Nov 2001Springwell Lane73301

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where common bream were found

Each point marks a survey location with at least one common bream 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 common bream
Uxbridge23 Jul 200321 Jul 202611
Watford M1 link road16 Jul 202616 Jul 20261
Heathrow EP: Little Britain31 Oct 201931 Oct 20191
Wall Hall30 Jul 200416 May 20182
Stanwell Moor27 Jul 200512 Jun 20173
Merchant Taylors CPUE21 Sept 201521 Sept 20151
Merchant Taylor27 Jun 200721 Sept 20154
The Withey Beds20 May 201520 May 20151
u/s West Drayton Mill30 Sept 201430 Sept 20141
Merchant Taylor Backwater16 Sept 201316 Sept 20131
Denham1 Dec 20045 Oct 20062
Springwell Lane22 Nov 200127 Jul 20062
Drop Lane21 Jul 200521 Jul 20051
Elms Lake19 Feb 200419 Feb 20041
Moor Roundabout4 Mar 19864 Mar 19861
Maple Cross12 Feb 198612 Feb 19861

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

1986–2026

Survey records by year

Each bar shows how many survey visits recorded common bream that year.

Fish measured by surveyors

Measured length distribution

See how the 474 measured fish were spread across different length ranges.

Smallest
3.2 cm
Lower quarter
6.5 cm
Median
8.4 cm
Upper quarter
9.9 cm
Largest
53.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 22 common bream. This is a subset of the measured fish and may not represent the whole population.

Lightest
0.3 oz (0.008 kg)
Lower quarter
0.7 oz (0.0185 kg)
Median
1.4 oz (0.0388 kg)
Upper quarter
14.5 oz (0.412 kg)
Heaviest
3 lb 11.5 oz (1.69 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the River Colne

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

Chub Perch Roach Pike 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 →