Crucian carp · Carassius carassius

Crucian carp in the River Mardyke

Largest measured crucian carp: 19.6 cm

The largest crucian carp measured in Environment Agency surveys of the River Mardyke was 19.6 cm, recorded at M25-A13 on 6 April 1992.

Across 17 measured crucian carp, the median measured length was 16.4 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 Mardyke.

See crucian carp records across England →

Most recent observation17 May 2007M25-A13 · 1 fish

Largest measured crucian carp: 19.6 cm
Median length: 16.4 cm
Fish measured: 17
Survey locations: 3

Individual EA measurements

Largest measured crucian 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
19.6 cm	6 Apr 1992	M25-A13	14717
18.4 cm	6 Apr 1992	M25-A13	14717
18 cm	26 Sept 2001	14 Arches Bridge	20060
17.7 cm	6 Apr 1992	M25-A13	14717
17.5 cm	7 Apr 1992	Circus Tavern	14716
17.3 cm	6 Apr 1992	M25-A13	14717
16.8 cm	6 Apr 1992	M25-A13	14717
16.8 cm	6 Apr 1992	M25-A13	14717
16.4 cm	15 May 1998	M25-A13	14729
16.4 cm	15 Apr 1986	Circus Tavern	14704

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

Explore the river

Where crucian carp were found

Each point marks a survey location with at least one crucian 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 crucian carp
M25-A13	6 Apr 1992	17 May 2007	4
14 Arches Bridge	26 Sept 2001	26 Sept 2001	1
Circus Tavern	15 Apr 1986	18 May 1998	3

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

1986–2007

Survey records by year

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

186

087

088

089

090

091

292

093

094

195

096

097

298

099

000

101

002

003

004

005

006

107

Fish measured by surveyors

Measured length distribution

See how the 17 measured fish were spread across different length ranges.

Smallest: 5.9 cm
Lower quarter: 13.4 cm
Median: 16.4 cm
Upper quarter: 17.5 cm
Largest: 19.6 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Mardyke

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

European eel 3-spined stickleback Roach Rudd Tench Common carp

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 →