RiverFish

Chub · Leuciscus cephalus

Chub in the River Derwent

Largest measured chub: 52.6 cm

The largest chub measured in Environment Agency surveys of the River Derwent was 52.6 cm, recorded at Chub Alley on 3 August 2012.

Across 1,787 measured chub, the median measured length was 11.8 cm.

Surveyors recorded weights for 13 chub. The median was 2 lb 4.7 oz (1.04 kg) and the largest recorded weight was 3 lb 12 oz (1.7 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 Derwent.

See chub records across England →

Most recent observation29 September 2025Duffield Bridge · 3 fish
Largest measured chub
52.6 cm
Median length
11.8 cm
Fish measured
1,787
Survey locations
17

Individual EA measurements

Largest measured chub

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

LengthSurvey dateSurvey locationSurvey ID
52.6 cm3 Aug 2012Chub Alley134941
52 cm29 Sept 2025Duffield Bridge179191
51 cm19 Oct 2008Borrowash115473
50.8 cm19 Apr 2005Nooning Lane84826
50.5 cm17 Sept 2014Nooning Lane142947
50.5 cm1 Jul 2010Nooning Lane122567
50.4 cm1 Jul 2010Nooning Lane122567
50.3 cm9 Feb 1998Wyver Lane23945
50.1 cm2 Sept 2007Borrowash107983
49.8 cm16 Oct 2005Borrowash87985

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

Explore the river

Where chub were found

Each point marks a survey location with at least one chub 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 chub
Duffield Bridge14 Sept 201529 Sept 20254
Derby Triangle Net22 Sept 202522 Sept 20251
Nooning Lane Net29 Sept 201019 Sept 20254
Cromford26 Feb 19986 Sept 201812
Nooning Lane16 Feb 199824 Aug 20178
Chub Alley1 Jul 201025 Jul 20174
Borrowash Fish Pass Pool116 Sept 201616 Sept 20161
Borrowash14 Oct 20011 Sept 20138
Chub Alley Net29 Sept 20103 Aug 20122
Peckwash Mill1 Sept 20101 Sept 20101
Church Wilne28 Apr 19935 Oct 20088
Duffield10 Feb 19989 Sept 20077
Draycott19 May 200519 May 20051
Wyver Lane9 Feb 199818 May 20052
Ambergate5 May 199318 May 20052
Matlock Bath29 Apr 199326 Feb 19982
Alvaston22 Apr 199317 Feb 19982

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

1993–2025

Survey records by year

Each bar shows how many survey visits recorded chub that year.

Fish measured by surveyors

Measured length distribution

See how the 1,787 measured fish were spread across different length ranges.

Smallest
1.4 cm
Lower quarter
8.8 cm
Median
11.8 cm
Upper quarter
19.8 cm
Largest
52.6 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 13 chub. This is a subset of the measured fish and may not represent the whole population.

Lightest
1.5 oz (0.042 kg)
Lower quarter
6.7 oz (0.19 kg)
Median
2 lb 4.7 oz (1.04 kg)
Upper quarter
2 lb 15.3 oz (1.34 kg)
Heaviest
3 lb 12 oz (1.7 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 Derwent

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

Brown / sea trout Bullhead Minnow Grayling Stone loach 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 →