RiverFish

Golden goldfish · Carassius auratus

Golden goldfish in the River Wandle

Largest measured golden goldfish: 29.2 cm

The largest golden goldfish measured in Environment Agency surveys of the River Wandle was 29.2 cm, recorded at King George Park on 17 July 1997.

Across 13 measured golden goldfish, the median measured length was 11.5 cm.

Surveyors recorded weights for 3 golden goldfish. The median was 4.3 oz (0.123 kg) and the largest recorded weight was 5.9 oz (0.166 kg).

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

See golden goldfish records across England →

Most recent observation2 October 2025Waterside Way · 1 fish
Largest measured golden goldfish
29.2 cm
Median length
11.5 cm
Fish measured
13
Survey locations
7

Individual EA measurements

Largest measured golden goldfish

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
29.2 cm17 Jul 1997King George Park116851
22.5 cm21 Jul 1988Hackbridge116827
20.2 cm28 Jun 2017Church Road150708
18.1 cm1 Jul 2015Sainsburys Merton145446
16.6 cm14 Jun 2011Ravensbury Park126506
16.2 cm30 Sept 2025Ravensbury Park179535
11.5 cm21 Jul 1988Hackbridge116827
10.4 cm7 May 2003Hackbridge76624
10.1 cm7 May 2003Hackbridge76624
9 cm10 May 2005Hackbridge84869

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

Explore the river

Where golden goldfish were found

Each point marks a survey location with at least one golden goldfish 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 surveyedFirst recordedLast recordedVisits finding golden goldfish
Waterside Way2 Oct 20252 Oct 20251
Ravensbury Park14 Jun 201130 Sept 20252
Church Road14 Jul 198928 Jun 20172
Sainsburys Merton1 Jul 20151 Jul 20151
Butterhill9 Jun 20099 Jun 20091
Hackbridge21 Jul 198810 May 20053
King George Park17 Jul 199717 Jul 19971

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

1988–2025

Survey records by year

Each bar shows how many survey visits recorded golden goldfish that year.

Fish measured by surveyors

Measured length distribution

See how the 13 measured fish were spread across different length ranges.

Smallest
4 cm
Lower quarter
9 cm
Median
11.5 cm
Upper quarter
18.1 cm
Largest
29.2 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 3 golden goldfish. This is a subset of the measured fish and may not represent the whole population.

Lightest
0.5 oz (0.014 kg)
Lower quarter
2.4 oz (0.0685 kg)
Median
4.3 oz (0.123 kg)
Upper quarter
5.1 oz (0.1445 kg)
Heaviest
5.9 oz (0.166 kg)

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

More fish in this river

Explore the River Wandle

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

3-spined stickleback Stone loach European eel Chub Roach Dace

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 →