RiverFish

Chub · Leuciscus cephalus

Chub in the River Blackwater

Largest measured chub: 41.4 cm

The largest chub measured in Environment Agency surveys of the River Blackwater was 41.4 cm, recorded at Broadlands Fishery on 3 September 2018.

Across 36 measured chub, the median measured length was 20.9 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 Blackwater.

See chub records across England →

Most recent observation16 September 2025Broadlands Fishery · 3 fish
Largest measured chub
41.4 cm
Median length
20.9 cm
Fish measured
36
Survey locations
2

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
41.4 cm3 Sept 2018Broadlands Fishery153662
38 cm23 Jul 2018Wade Bridge153122
36.6 cm23 Sept 2019Broadlands Fishery155457
31 cm23 Sept 2019Broadlands Fishery155457
29.6 cm23 Sept 2019Broadlands Fishery155457
29.1 cm16 Sept 2025Broadlands Fishery178978
28.8 cm15 Sept 2022Broadlands Fishery161536
28 cm20 Sept 2011Broadlands Fishery128015
27 cm16 Sept 2025Broadlands Fishery178978
26.8 cm16 Sept 2025Broadlands Fishery178978

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
Broadlands Fishery20 Sept 201116 Sept 20259
Wade Bridge23 Jul 201823 Jul 20181

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

2011–2025

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 36 measured fish were spread across different length ranges.

Smallest
8.5 cm
Lower quarter
13.7 cm
Median
20.9 cm
Upper quarter
26.9 cm
Largest
41.4 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Blackwater

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

Roach Bullhead European eel Dace Brown / sea trout Stone loach

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 →