Roach · Rutilus rutilus

Roach in the River Nocton Delph

Largest measured roach: 24.8 cm

The largest roach measured in Environment Agency surveys of the River Nocton Delph was 24.8 cm, recorded at Wasps Nest on 11 July 1991.

Across 1,475 measured roach, the median measured length was 12.6 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 Nocton Delph.

See roach records across England →

Most recent observation17 June 1998Wasps Nest · 23 fish

Largest measured roach: 24.8 cm
Median length: 12.6 cm
Fish measured: 1,475
Survey locations: 2

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
24.8 cm	11 Jul 1991	Wasps Nest	53240
23 cm	11 Jul 1991	Wasps Nest	53240
22.8 cm	11 Jul 1991	Wasps Nest	53240
22.8 cm	11 Jul 1991	Wasps Nest	53240
22.5 cm	11 Jul 1991	Wasps Nest	53240
22.1 cm	11 Jul 1991	Wasps Nest	53240
21.8 cm	11 Jul 1991	Wasps Nest	53240
21.7 cm	11 Jul 1991	Wasps Nest	53240
21.6 cm	11 Jul 1991	Wasps Nest	53240
21.4 cm	23 May 1988	Wasps Nest	53148

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
Wasps Nest	23 May 1988	17 Jun 1998	3
Upstream Of Outfall To Witham (Nocton)	19 Apr 1985	23 May 1988	2

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

1985–1998

Survey records by year

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

185

086

087

288

089

090

191

092

093

094

095

096

097

198

Fish measured by surveyors

Measured length distribution

See how the 1,475 measured fish were spread across different length ranges.

Smallest: 1.6 cm
Lower quarter: 10 cm
Median: 12.6 cm
Upper quarter: 14.3 cm
Largest: 24.8 cm

0–99 mm

348

100–199 mm

1107

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

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 →