Roach · Rutilus rutilus

Roach in the River Ock

Largest measured roach: 28.3 cm

The largest roach measured in Environment Agency surveys of the River Ock was 28.3 cm, recorded at d/s drayton road bridge - North channel on 19 April 2005.

Across 227 measured roach, the median measured length was 10.2 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 Ock.

See roach records across England →

Most recent observation15 May 2014Millets Farm · 11 fish

Largest measured roach: 28.3 cm
Median length: 10.2 cm
Fish measured: 227
Survey locations: 5

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
28.3 cm	19 Apr 2005	d/s drayton road bridge - North channel	84462
27.9 cm	19 Apr 2005	d/s drayton road bridge - North channel	84462
26.5 cm	19 Apr 2005	d/s drayton road bridge - North channel	84462
26.2 cm	19 Apr 2005	d/s drayton road bridge - North channel	84462
25.6 cm	19 Apr 2005	d/s drayton road bridge - North channel	84462
24.6 cm	19 Apr 2005	d/s drayton road bridge - North channel	84462
24.3 cm	19 Apr 2005	d/s drayton road bridge - North channel	84462
24.1 cm	19 Apr 2005	d/s drayton road bridge - North channel	84462
23.8 cm	19 Apr 2005	d/s drayton road bridge - North channel	84462
23.8 cm	19 Apr 2005	d/s drayton road bridge - North channel	84462

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
Millets Farm	4 May 2005	15 May 2014	2
Marcham Mill - Mill bridge/Nor brook	27 May 2005	27 May 2005	1
U/s Marcham Mill	16 May 2005	16 May 2005	1
d/s drayton road bridge - North channel	19 Apr 2005	19 Apr 2005	1
d/s Drayton road bridge - South Channel	19 Apr 2005	19 Apr 2005	1

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

2005–2014

Survey records by year

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

505

006

007

008

009

010

011

012

013

114

Fish measured by surveyors

Measured length distribution

See how the 227 measured fish were spread across different length ranges.

Smallest: 4.5 cm
Lower quarter: 8.7 cm
Median: 10.2 cm
Upper quarter: 14.2 cm
Largest: 28.3 cm

0–99 mm

100

100–199 mm

105

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Ock

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

Gudgeon Pike Chub Perch Brown / sea trout Dace

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 →