RiverFish

Chub · Leuciscus cephalus

Chub in the River Idle

Largest measured chub: 51.4 cm

The largest chub measured in Environment Agency surveys of the River Idle was 51.4 cm, recorded at Bawtry on 4 May 2011.

Across 494 measured chub, the median measured length was 20.8 cm.

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

See chub records across England →

Most recent observation21 August 2024Chain Bridge Lane · 1 fish
Largest measured chub
51.4 cm
Median length
20.8 cm
Fish measured
494
Survey locations
8

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
51.4 cm4 May 2011Bawtry126161
51 cm3 Nov 2003Bawtry78630
49.6 cm13 May 2009Eaton119504
49.5 cm11 Apr 2017Eaton150339
49.5 cm11 Apr 2017Eaton150339
49 cm13 May 2009Mattersey Priory119509
48.7 cm16 Sept 2005Eaton86192
48.5 cm18 Sept 2002Eaton61441
48 cm2 Jul 2012Idle Valley Nature Reserve131731
48 cm9 Jun 2008Eaton111312

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
Chain Bridge Lane8 Mar 200021 Aug 202414
Bawtry28 Jan 198325 Apr 201715
Mattersey Priory20 Aug 198713 Apr 201712
Tiln19 Feb 199111 Apr 20179
Eaton16 Mar 200011 Apr 201712
Idle Valley Nature Reserve2 Jul 20122 Jul 20121
Gamston23 Nov 198921 Oct 20033
Misterton Soss12 May 199512 May 19951

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

1983–2024

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 494 measured fish were spread across different length ranges.

Smallest
2.2 cm
Lower quarter
5.9 cm
Median
20.8 cm
Upper quarter
39.4 cm
Largest
51.4 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Idle

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

European eel Roach Perch Pike Gudgeon 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 →