Crucian carp · Carassius carassius

Crucian carp in the River Colne

Largest measured crucian carp: 25.5 cm

The largest crucian carp measured in Environment Agency surveys of the River Colne was 25.5 cm, recorded at Cricket Ground on 28 July 1987.

Across 4 measured crucian carp, the median measured length was 23.7 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 Colne.

See crucian carp records across England →

Most recent observation28 July 1987Cricket Ground · 2 fish

Largest measured crucian carp: 25.5 cm
Median length: 23.7 cm
Fish measured: 4
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
25.5 cm	28 Jul 1987	Cricket Ground	13898
24.9 cm	4 May 1984	Nunnery Bridge	13895
22.5 cm	28 Jul 1987	Cricket Ground	13898
21.7 cm	3 May 1984	Poole Street	13896

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
Cricket Ground	28 Jul 1987	28 Jul 1987	1
Nunnery Bridge	4 May 1984	4 May 1984	1
Poole Street	3 May 1984	3 May 1984	1

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

1984–1987

Survey records by year

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

284

085

086

187

Fish measured by surveyors

Measured length distribution

See how the 4 measured fish were spread across different length ranges.

Smallest: 21.7 cm
Lower quarter: 22.3 cm
Median: 23.7 cm
Upper quarter: 25.1 cm
Largest: 25.5 cm

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Colne

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

Roach European eel Gudgeon Dace Pike Perch

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 →