Common carp · Cyprinus carpio

Common carp in the River Len

Largest measured common carp: 59.8 cm

The largest common carp measured in Environment Agency surveys of the River Len was 59.8 cm, recorded at Turkey Mill on 7 September 2011.

Across 6 measured common carp, the median measured length was 47.5 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 Len.

See common carp records across England →

Most recent observation12 July 2023Fulling Mill · 3 fish

Largest measured common carp: 59.8 cm
Median length: 47.5 cm
Fish measured: 6
Survey locations: 3

Individual EA measurements

Largest measured common carp

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
59.8 cm	7 Sept 2011	Turkey Mill	128528
56.2 cm	12 Jul 2023	Fulling Mill	163071
48 cm	12 Jul 2023	Fulling Mill	163071
46.9 cm	16 Aug 2004	Fulling Mill	82993
45.6 cm	12 Jul 2023	Fulling Mill	163071
40.2 cm	19 Apr 2011	Chegworth	126911

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

Explore the river

Where common carp were found

Each point marks a survey location with at least one common carp 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 common carp
Fulling Mill	16 Aug 2004	12 Jul 2023	2
Turkey Mill	7 Sept 2011	7 Sept 2011	1
Chegworth	19 Apr 2011	19 Apr 2011	1

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

2004–2023

Survey records by year

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

104

005

006

007

008

009

010

211

012

013

014

015

016

017

018

019

020

021

022

123

Fish measured by surveyors

Measured length distribution

See how the 6 measured fish were spread across different length ranges.

Smallest: 40.2 cm
Lower quarter: 45.9 cm
Median: 47.5 cm
Upper quarter: 54.2 cm
Largest: 59.8 cm

400–499 mm

500–599 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Len

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

European eel Gudgeon Perch Pike Roach Common bream

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 →