Chub · Leuciscus cephalus

Chub in the Main River Biss

Largest measured chub: 43.5 cm

The largest chub measured in Environment Agency surveys of the Main River Biss was 43.5 cm, recorded at Ladydown Mill on 11 September 1997.

Across 68 measured chub, the median measured length was 19.6 cm.

Surveyors recorded weights for 64 chub. The median was 3.7 oz (0.1055 kg) and the largest recorded weight was 2 lb 13.2 oz (1.28 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 Biss.

See chub records across England →

Most recent observation28 June 2012Ashton Hill Farm · 2 fish

Largest measured chub: 43.5 cm
Median length: 19.6 cm
Fish measured: 68
Survey locations: 3

Individual EA measurements

Largest measured chub

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
43.5 cm	11 Sept 1997	Ladydown Mill	77050
42.5 cm	11 Sept 1997	Ladydown Mill	77050
37.6 cm	28 Jun 2012	Ashton Hill Farm	131684
36.8 cm	14 Aug 2003	u/s Blackball Hatch (Te)	76667
36.5 cm	14 Jul 2004	u/s Blackball Hatch (Te)	80754
35.3 cm	14 Aug 2003	u/s Blackball Hatch (Te)	76667
34.3 cm	11 Jul 2005	u/s Blackball Hatch (Te)	85029
33.3 cm	14 Aug 2003	u/s Blackball Hatch (Te)	76667
32.8 cm	14 Jul 2004	u/s Blackball Hatch (Te)	80754
32.3 cm	14 Jul 2004	u/s Blackball Hatch (Te)	80754

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 surveyed	First recorded	Last recorded	Visits finding chub
Ashton Hill Farm	31 Jul 1997	28 Jun 2012	3
u/s Blackball Hatch (Te)	14 Aug 2003	11 Jul 2005	3
Ladydown Mill	11 Sept 1997	11 Sept 1997	1

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

1997–2012

Survey records by year

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

297

098

099

000

001

002

103

104

105

006

107

008

009

010

011

112

Fish measured by surveyors

Measured length distribution

See how the 68 measured fish were spread across different length ranges.

Smallest: 6.5 cm
Lower quarter: 16 cm
Median: 19.6 cm
Upper quarter: 28.1 cm
Largest: 43.5 cm

0–99 mm

100–199 mm

200–299 mm

300–399 mm

400–499 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 64 chub. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0.2 oz (0.006 kg)
Lower quarter: 2.1 oz (0.0602 kg)
Median: 3.7 oz (0.1055 kg)
Upper quarter: 11.4 oz (0.3225 kg)
Heaviest: 2 lb 13.2 oz (1.28 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 Biss

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

Bullhead Brown / sea trout Minnow Dace 3-spined stickleback Roach

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 →