Gudgeon · Gobio gobio

Gudgeon in the River Mardyke

Largest measured gudgeon: 14.7 cm

The largest gudgeon measured in Environment Agency surveys of the River Mardyke was 14.7 cm, recorded at North Stifford on 25 April 2013.

Across 109 measured gudgeon, the median measured length was 5.2 cm.

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

See gudgeon records across England →

Most recent observation4 June 2019North Stifford · 1 fish

Largest measured gudgeon: 14.7 cm
Median length: 5.2 cm
Fish measured: 109
Survey locations: 5

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
14.7 cm	25 Apr 2013	North Stifford	136904
13.3 cm	25 Apr 2013	North Stifford	136904
13.2 cm	25 Apr 2013	North Stifford	136904
13.2 cm	25 Apr 2013	North Stifford	136904
13 cm	25 Apr 2013	North Stifford	136904
12.9 cm	1 May 2013	14 Arches Bridge	137066
12.8 cm	19 Mar 1986	M25-A13	14705
12.6 cm	25 Apr 2013	North Stifford	136904
12.5 cm	25 Apr 2013	North Stifford	136904
12.2 cm	30 May 2019	14 Arches Bridge	155998

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
North Stifford	25 Apr 2013	4 Jun 2019	2
14 Arches Bridge	16 May 2007	30 May 2019	3
Grangewater	23 Apr 2013	23 Apr 2013	1
Circus Tavern	15 Apr 1986	15 Apr 1986	1
M25-A13	19 Mar 1986	19 Mar 1986	1

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

1986–2019

Survey records by year

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

286

087

088

089

090

091

092

093

094

095

096

097

098

099

000

001

002

003

004

005

006

107

008

009

010

011

012

313

014

015

016

017

018

219

Fish measured by surveyors

Measured length distribution

See how the 109 measured fish were spread across different length ranges.

Smallest: 3.7 cm
Lower quarter: 4.8 cm
Median: 5.2 cm
Upper quarter: 7.7 cm
Largest: 14.7 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Mardyke

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

European eel 3-spined stickleback Roach Rudd Tench Common carp

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 →