RiverFish

Chub · Leuciscus cephalus

Chub in the Main river sites

Largest measured chub: 57.5 cm

The largest chub measured in Environment Agency surveys of the Main river sites was 57.5 cm, recorded at S3R Corfe Mullen to Cowgrove on 4 June 2009.

Across 1,281 measured chub, the median measured length was 24.9 cm.

Surveyors recorded weights for 22 chub. The median was 2 lb 10.7 oz (1.21 kg) and the largest recorded weight was 3 lb 14 oz (1.76 kg).

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

See chub records across England →

Most recent observation18 September 2025Canford School (top site S2S) · 1 fish
Largest measured chub
57.5 cm
Median length
24.9 cm
Fish measured
1,281
Survey locations
37

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
57.5 cm4 Jun 2009S3R Corfe Mullen to Cowgrove117536
56.9 cm16 May 2013S4R Dudsbury to Merritown136064
55.9 cm22 May 2008S4R Dudsbury to Merritown111094
55.7 cm22 Jun 2004S3R Corfe Mullen to Cowgrove80192
54.5 cm22 Jun 2004S3R Corfe Mullen to Cowgrove80192
53.9 cm22 May 2008S4R Dudsbury to Merritown111094
53.9 cm22 May 2008S4R Dudsbury to Merritown111094
53.5 cm23 May 2017S1R Fiddleford to Child Okeford150448
53.4 cm17 May 2018S1R Fiddleford to Child Okeford152548
53.2 cm16 May 2013S4R Dudsbury to Merritown136064

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
Muscliffe- Kingfisher Barn Visitor Centre17 Sept 201918 Sept 20255
Longham Bridge12 Sept 200718 Sept 20256
Kinson13 Sept 200718 Sept 20255
Cowgrove Weir17 Sept 200318 Sept 20259
Canford School (top site S2S)11 Sept 200318 Sept 20254
Throop d/s Glens Weir11 Sept 200919 Sept 20244
d/s Blandford Weir16 Sept 201918 Sept 20232
Upstream Haywards Bridge16 Sept 201920 Sept 20223
Durweston Downstream of footbridge16 Sept 202120 Sept 20222
Blandford - Stour Meadow13 Jun 201827 Jul 20223
Stour at Millmore Farm1 Aug 20191 Aug 20191
S2 Upstream Eccliffe8 Aug 20026 Jun 20198
S7 Durweston8 Jun 201130 May 20196
S5 Strangeways5 Aug 200223 May 201913
S1 Gillingham17 Jul 200221 May 201913
S2R Stourpaine to Bryanston13 Jul 200431 May 20186
Canford Mill Stream31 May 201230 May 20182
S1R Fiddleford to Child Okeford20 Jul 200417 May 201810
S6 Child okeford8 Jun 201131 May 20174
S3R Corfe Mullen to Cowgrove22 Jun 200430 May 20136
S5R Iford Bridge to Hengistbury Head13 May 200421 May 20135
S4R Dudsbury to Merritown17 Jun 200416 May 20135
S8 Blandford4 Sept 20124 Sept 20121
The Ship Inn2 Jun 200524 Aug 20103
Throop u/s Glens Weir11 Sept 200911 Sept 20091
Throop d/s gauging Weir11 Sept 200911 Sept 20091
Throop13 Oct 200511 Sept 20093
S3 Riversdale Farm7 Jun 200610 Jul 20092
S4 St Mary's Marnhull24 Jul 200211 Jun 20096
Muscliffe13 Oct 200513 Sept 20072
Redhill11 Sept 200313 Oct 20052
Iford (between bridges)13 Oct 200513 Oct 20051
Golf Course13 Oct 200513 Oct 20051
U/s Whitemill Bridge26 Sept 200526 Sept 20051
Stourpaine26 Sept 200526 Sept 20051
Hanford9 Jun 20059 Jun 20051
Kinson Manor Farm (Dudsbury)8 Sept 20038 Sept 20031

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

2002–2025

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 1,281 measured fish were spread across different length ranges.

Smallest
3.8 cm
Lower quarter
18.1 cm
Median
24.9 cm
Upper quarter
37.7 cm
Largest
57.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 22 chub. This is a subset of the measured fish and may not represent the whole population.

Lightest
0.9 oz (0.025 kg)
Lower quarter
2 lb 1.3 oz (0.9452 kg)
Median
2 lb 10.7 oz (1.21 kg)
Upper quarter
3 lb 3.2 oz (1.45 kg)
Heaviest
3 lb 14 oz (1.76 kg)

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

More fish in this river

Explore the Main river sites

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

Minnow Bullhead European eel Dace Stone loach Gudgeon

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 →