Chub · Leuciscus cephalus

Chub in the Cound Brook

Largest measured chub: 25.8 cm

The largest chub measured in Environment Agency surveys of the Cound Brook was 25.8 cm, recorded at Boreton Bridge on 9 August 2022.

Across 22 measured chub, the median measured length was 20.7 cm.

Surveyors recorded one individual weight: 7.1 oz (0.2 kg).

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

See chub records across England →

Most recent observation6 September 2024Boreton Bridge · 4 fish

Largest measured chub: 25.8 cm
Median length: 20.7 cm
Fish measured: 22
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
25.8 cm	9 Aug 2022	Boreton Bridge	161271
25.8 cm	16 Sept 2003	Boreton Bridge	77237
24 cm	2 Aug 2022	Venus Bank	161228
23.9 cm	16 Sept 2003	Boreton Bridge	77237
23.8 cm	6 Sept 2024	Boreton Bridge	168312
23.5 cm	18 Jun 2002	Boreton Bridge	52057
23.4 cm	16 Sept 2003	Boreton Bridge	77237
21.3 cm	16 Sept 2003	Boreton Bridge	77237
21 cm	13 Jun 2012	Boreton Bridge	131555
21 cm	16 Sept 2003	Boreton Bridge	77237

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
Boreton Bridge	13 May 1991	6 Sept 2024	7
Venus Bank	23 Jul 1997	2 Aug 2022	2
Stapleton	13 May 1991	22 Jul 1997	2

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

1991–2024

Survey records by year

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

291

092

093

094

095

096

397

098

099

000

001

102

103

004

005

006

007

008

009

010

011

112

013

014

015

016

017

018

019

020

021

222

023

124

Fish measured by surveyors

Measured length distribution

See how the 22 measured fish were spread across different length ranges.

Smallest: 9.9 cm
Lower quarter: 16.9 cm
Median: 20.7 cm
Upper quarter: 23.5 cm
Largest: 25.8 cm

0–99 mm

100–199 mm

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

One individual weight was recorded for this fish and river. This is a subset of the measured fish and may not represent the whole population.

Recorded weight: 7.1 oz (0.2 kg)

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

More fish in this river

Explore the Cound Brook

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

Brown / sea trout Atlantic salmon European eel 3-spined stickleback

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 →