RiverFish

European eel · Anguilla anguilla

European eel in the St Ives Chub Stream

Largest measured european eel: 76 cm

The largest european eel measured in Environment Agency surveys of the St Ives Chub Stream was 76 cm, recorded at St Ives Chub Stream on 25 April 2006.

Across 1,065 measured european eel, the median measured length was 31.5 cm.

Surveyors recorded weights for 801 european eel. The median was 3.2 oz (0.09 kg) and the largest recorded weight was 2 lb 8.6 oz (1.15 kg).

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

See european eel records across England →

Most recent observation8 April 2025St Ives Chub Stream · 165 fish
Largest measured european eel
76 cm
Median length
31.5 cm
Fish measured
1,065
Survey locations
2

Individual EA measurements

Largest measured european eel

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

LengthSurvey dateSurvey locationSurvey ID
76 cm25 Apr 2006St Ives Chub Stream90643
75 cm25 Apr 2006St Ives Chub Stream90643
70 cm19 Jun 2008St Ives Chub Stream (Eel Monitoring)111343
69 cm21 May 2009St Ives Chub Stream (Eel Monitoring)117258
68 cm19 Jun 2008St Ives Chub Stream (Eel Monitoring)111343
68 cm25 Apr 2006St Ives Chub Stream90643
67 cm9 May 2007St Ives Chub Stream (Eel Monitoring)105281
67 cm25 Apr 2006St Ives Chub Stream90643
66 cm9 May 2007St Ives Chub Stream (Eel Monitoring)105281
66 cm9 May 2007St Ives Chub Stream (Eel Monitoring)105281

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

Explore the river

Where european eel were found

Each point marks a survey location with at least one european eel 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 european eel
St Ives Chub Stream14 Aug 19958 Apr 20256
St Ives Chub Stream (Eel Monitoring)9 May 20079 Jul 20136

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

1995–2025

Survey records by year

Each bar shows how many survey visits recorded european eel that year.

Fish measured by surveyors

Measured length distribution

See how the 1,065 measured fish were spread across different length ranges.

Smallest
9 cm
Lower quarter
22.8 cm
Median
31.5 cm
Upper quarter
39 cm
Largest
76 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 801 european eel. This is a subset of the measured fish and may not represent the whole population.

Lightest
0.1 oz (0.003 kg)
Lower quarter
1.4 oz (0.04 kg)
Median
3.2 oz (0.09 kg)
Upper quarter
5.3 oz (0.15 kg)
Heaviest
2 lb 8.6 oz (1.15 kg)

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

More fish in this river

Explore the St Ives Chub Stream

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

Chub Dace Gudgeon Perch Roach Bleak

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 →