Gudgeon · Gobio gobio

Gudgeon in the Sankey Brook

Largest measured gudgeon: 12.5 cm

The largest gudgeon measured in Environment Agency surveys of the Sankey Brook was 12.5 cm, recorded at Sasa10 on 25 May 2023.

Across 77 measured gudgeon, the median measured length was 10.2 cm.

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

See gudgeon records across England →

Most recent observation25 May 2023Sasa10 · 10 fish

Largest measured gudgeon: 12.5 cm
Median length: 10.2 cm
Fish measured: 77
Survey locations: 4

Individual EA measurements

Largest measured gudgeon

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
12.5 cm	25 May 2023	Sasa10	162376
12.5 cm	25 May 2023	Sasa10	162376
12.5 cm	7 Jun 2000	Sabl05	79758
12.5 cm	7 Jun 2000	Sabl05	79758
12.4 cm	7 Jun 2000	Sabl05	79758
12.3 cm	7 Jun 2000	Sabl05	79758
12.2 cm	7 Jun 2000	Sabl05	79758
12 cm	7 Jun 2000	Sabl05	79758
12 cm	7 Jun 2000	Sabl05	79758
11.6 cm	25 Apr 2023	Sasa05	162370

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where gudgeon were found

Each point marks a survey location with at least one gudgeon 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 gudgeon
Sasa10	25 May 2023	25 May 2023	1
Sasa05	13 Jul 2000	25 Apr 2023	2
Sabl06	9 Oct 2013	9 Oct 2013	1
Sabl05	7 Jun 2000	7 Jun 2000	1

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

2000–2023

Survey records by year

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

200

001

002

003

004

005

006

007

008

009

010

011

012

113

014

015

016

017

018

019

020

021

022

223

Fish measured by surveyors

Measured length distribution

See how the 77 measured fish were spread across different length ranges.

Smallest: 4.9 cm
Lower quarter: 9.4 cm
Median: 10.2 cm
Upper quarter: 10.9 cm
Largest: 12.5 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Sankey Brook

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

Roach European eel Chub Dace Perch

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 →