Roach · Rutilus rutilus

Roach in the Gaddesby Brook

Largest measured roach: 30 cm

The largest roach measured in Environment Agency surveys of the Gaddesby Brook was 30 cm, recorded at John O'Gaunt on 20 January 1992.

Across 14 measured roach, the median measured length was 20.9 cm.

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

See roach records across England →

Most recent observation4 July 2003Twyford · 3 fish

Largest measured roach: 30 cm
Median length: 20.9 cm
Fish measured: 14
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
30 cm	20 Jan 1992	John O'Gaunt	24236
29.5 cm	20 Jan 1992	John O'Gaunt	24236
24.8 cm	20 Jan 1992	John O'Gaunt	24236
23.5 cm	4 Jul 2003	John O'Gaunt	76280
23.2 cm	10 Jun 2003	Rearsby Works	76201
22.6 cm	4 Jul 2003	John O'Gaunt	76280
22 cm	6 Jul 2001	Twyford	23843
19.8 cm	4 Jul 2003	Twyford	76281
17.9 cm	4 Jul 2003	Twyford	76281
17.5 cm	6 Jul 2001	Twyford	23843

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
Twyford	6 Jul 2001	4 Jul 2003	2
John O'Gaunt	20 Jan 1992	4 Jul 2003	3
Rearsby Works	6 Jun 1996	10 Jun 2003	2

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

1992–2003

Survey records by year

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

192

193

094

095

196

097

098

099

000

101

002

303

Fish measured by surveyors

Measured length distribution

See how the 14 measured fish were spread across different length ranges.

Smallest: 6.1 cm
Lower quarter: 16.8 cm
Median: 20.9 cm
Upper quarter: 23.4 cm
Largest: 30 cm

0–99 mm

100–199 mm

200–299 mm

300–399 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Gaddesby Brook

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

Stone loach Bullhead Chub Dace Minnow 3-spined stickleback

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 →