Gudgeon · Gobio gobio

Gudgeon in the River Sapiston (Black Bourn)

Largest measured gudgeon: 13.8 cm

The largest gudgeon measured in Environment Agency surveys of the River Sapiston (Black Bourn) was 13.8 cm, recorded at Euston on 30 October 1995.

Across 1,692 measured gudgeon, the median measured length was 8.8 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 Sapiston (Black Bourn).

See gudgeon records across England →

Most recent observation22 August 2024Bailey Pool Bridge · 1 fish

Largest measured gudgeon: 13.8 cm
Median length: 8.8 cm
Fish measured: 1,692
Survey locations: 11

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
13.8 cm	30 Oct 1995	Euston	30074
13.8 cm	5 May 1992	US Burnthall Plantation	30060
13.3 cm	30 Oct 1995	Euston	30074
13.3 cm	30 Oct 1995	Euston	30074
13.3 cm	30 Oct 1995	Euston	30074
13.3 cm	30 Oct 1995	Euston	30074
13.3 cm	16 Oct 1995	Bardwell Mill	30069
13.3 cm	5 May 1992	US Burnthall Plantation	30060
13.3 cm	5 May 1992	US Burnthall Plantation	30060
13.3 cm	5 May 1992	US Burnthall Plantation	30060

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
Bailey Pool Bridge	19 Apr 1989	22 Aug 2024	6
Euston	14 Jul 1988	8 Nov 2018	5
Bullbridge	17 May 1990	25 Oct 2018	4
Ixworth	11 Jul 1988	5 Sept 2012	4
Micklemere	11 Jul 1988	4 Sept 2012	8
Sapiston Bridge	13 Jul 1988	25 Aug 2009	4
Parkhouse Farm	23 Apr 1992	26 Oct 1995	2
Burnthall Plantation	7 May 1992	26 Oct 1995	2
US Burnthall Plantation	5 May 1992	24 Oct 1995	2
Ixworth Mill	12 Jul 1988	17 Oct 1995	3
Bardwell Mill	12 Jul 1988	16 Oct 1995	3

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

1988–2024

Survey records by year

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

688

289

390

091

1092

093

094

1195

096

097

098

099

100

001

002

003

004

005

006

007

008

509

010

011

212

013

014

015

016

017

218

019

020

021

022

023

124

Fish measured by surveyors

Measured length distribution

See how the 1,692 measured fish were spread across different length ranges.

Smallest: 2.7 cm
Lower quarter: 7.8 cm
Median: 8.8 cm
Upper quarter: 10.3 cm
Largest: 13.8 cm

0–99 mm

1257

100–199 mm

435

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Sapiston (Black Bourn)

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

Dace Roach Pike Chub European eel Bullhead

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 →