Crucian carp · Carassius carassius

Crucian carp in the Grand Union Canal

Largest measured crucian carp: 28.2 cm

The largest crucian carp measured in Environment Agency surveys of the Grand Union Canal was 28.2 cm, recorded at Horsendon Lane on 5 June 1987.

Across 11 measured crucian carp, the median measured length was 20 cm.

Surveyors recorded weights for 11 crucian carp. The median was 8.1 oz (0.23 kg) and the largest recorded weight was 1 lb 5.1 oz (0.597 kg).

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

See crucian carp records across England →

Most recent observation25 March 1988Kensal Road · 1 fish

Largest measured crucian carp: 28.2 cm
Median length: 20 cm
Fish measured: 11
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
28.2 cm	5 Jun 1987	Horsendon Lane	116193
27.2 cm	5 Jun 1987	Horsendon Lane	116193
26.4 cm	5 Jun 1987	Horsendon Lane	116193
23.2 cm	5 Jun 1987	Horsendon Lane	116193
22.6 cm	5 Jun 1987	Horsendon Lane	116193
20 cm	25 Mar 1988	Kensal Road	116192
19.6 cm	5 Jun 1987	Horsendon Lane	116193
19.3 cm	5 Jun 1987	Horsendon Lane	116193
17.6 cm	5 Jun 1987	Horsendon Lane	116193
16.9 cm	29 Feb 1988	Slough Arm at B470 Road	116486

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
Kensal Road	25 Mar 1988	25 Mar 1988	1
Slough Arm at B470 Road	29 Feb 1988	29 Feb 1988	1
Horsendon Lane	5 Jun 1987	5 Jun 1987	1

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

1987–1988

Survey records by year

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

187

288

Fish measured by surveyors

Measured length distribution

See how the 11 measured fish were spread across different length ranges.

Smallest: 15.5 cm
Lower quarter: 18.5 cm
Median: 20 cm
Upper quarter: 24.8 cm
Largest: 28.2 cm

100–199 mm

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 11 crucian carp. This is a subset of the measured fish and may not represent the whole population.

Lightest: 3.5 oz (0.098 kg)
Lower quarter: 5.3 oz (0.149 kg)
Median: 8.1 oz (0.23 kg)
Upper quarter: 13.4 oz (0.3795 kg)
Heaviest: 1 lb 5.1 oz (0.597 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the Grand Union Canal

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

Perch Roach Pike Common bream Gudgeon European eel

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 →