RiverFish

Gudgeon · Gobio gobio

Gudgeon in the River Middle Ouse

Largest measured gudgeon: 14.8 cm

The largest gudgeon measured in Environment Agency surveys of the River Middle Ouse was 14.8 cm, recorded at Hartford on 13 July 1999.

Across 6,615 measured gudgeon, the median measured length was 9.8 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 Middle Ouse.

See gudgeon records across England →

Most recent observation22 October 2025Holywell · 1 fish
Largest measured gudgeon
14.8 cm
Median length
9.8 cm
Fish measured
6,615
Survey locations
39

Individual EA measurements

Largest measured gudgeon

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
14.8 cm13 Jul 1999Hartford29189
14.8 cm11 Jun 1992Willington29128
14.3 cm12 Sept 1989Offord Intake29121
14.3 cm4 Sept 1989Little Paxton Nature Reserve29120
14.2 cm8 Oct 2013Houghton139232
13.8 cm22 Aug 1995Mow Fen29213
13.3 cm26 Oct 1989St Ives29197
12.8 cm1 Oct 2001Barford Bridge30832
12.8 cm13 Jul 1999Hartford29189
12.8 cm11 Aug 1992Hemingford Grey29182

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 surveyedFirst recordedLast recordedVisits finding gudgeon
Holywell14 Aug 199222 Oct 202510
Hemingford Meadow21 Oct 202521 Oct 20251
Portholme Meadow27 Sept 198915 Oct 202515
Pike & Eel8 Nov 198911 Oct 20199
US Dolphin Meadow24 Oct 19892 Oct 201910
Houghton4 Oct 19891 Oct 20197
Kelpie Marina8 Aug 19892 Oct 20185
Offord Triangle13 Sept 198921 Aug 20156
Eynesbury19 Aug 201519 Aug 20151
Hartford Church29 Sept 198927 Oct 20096
Renhold2 Aug 198924 Sept 20085
Dolphin Meadow25 Oct 19892 Sept 20034
Hemingford Grey23 Oct 198928 Aug 20033
Mow Fen2 Nov 19894 Aug 20035
St Neots Common14 Aug 19899 Oct 20013
Brampton25 Sept 19893 Oct 20014
Barford Bridge3 Aug 19891 Oct 20014
Meadow Lane St Ives29 Oct 19903 Aug 19994
Hemingford Abbots5 Oct 198926 Jul 19992
Houghton Lock3 Oct 198919 Jul 19993
Hartford12 Oct 198913 Jul 19993
Portholme Lock28 Sept 19899 Jul 19993
Buckden Marina15 Sept 198914 Oct 19983
DS Samual Jones17 Aug 198912 Oct 19983
DS Barford Power Station11 Aug 198926 Aug 19983
Barford Power Station9 Aug 198925 Aug 19983
Wyboston Lakes7 Aug 198924 Aug 19983
Blunham4 Aug 198913 Aug 19983
Willington1 Aug 198911 Aug 19983
Earith4 Oct 19954 Oct 19951
Bluntisham10 Nov 19892 Oct 19952
St Ives26 Oct 198915 Aug 19953
Castle Hills Huntingdon2 Oct 19896 Aug 19922
Offord Intake12 Sept 198915 Jul 19922
Little Paxton Nature Reserve4 Sept 198914 Jul 19922
Little Paxton18 Aug 198913 Jul 19922
Riverside Park11 Aug 19891 Jul 19922
Cardington Navigation31 Jul 198918 Jun 19922
Longholme24 Jul 198910 Jun 19922

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

1989–2025

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 6,615 measured fish were spread across different length ranges.

Smallest
2 cm
Lower quarter
9 cm
Median
9.8 cm
Upper quarter
10.3 cm
Largest
14.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Middle Ouse

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

Perch Roach Pike Bleak Common bream Dace

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 →