RiverFish

Gudgeon · Gobio gobio

Gudgeon in the River Aire

Largest measured gudgeon: 42.2 cm

The largest gudgeon measured in Environment Agency surveys of the River Aire was 42.2 cm, recorded at Thwaite Weir on 21 August 2002.

Across 2,574 measured gudgeon, the median measured length was 8.7 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 Aire.

See gudgeon records across England →

Most recent observation29 June 2026Kirkstall Abbey · 3 fish
Largest measured gudgeon
42.2 cm
Median length
8.7 cm
Fish measured
2,574
Survey locations
31

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
42.2 cm21 Aug 2002Thwaite Weir67481
41.3 cm30 Jul 2002Bingley Downstream A65067581
41.2 cm30 Jul 2002Bingley Downstream A65067581
19.1 cm27 Jul 2008Kirkstall (400m d/s weir)114151
16.1 cm24 Jun 2009Swillington Bridge117729
16 cm18 Jul 2005Castleford85374
15.7 cm15 Jul 2004Hirstwood, u/s Bradford Beck83571
15.3 cm31 Aug 2001Castleford61720
14.9 cm14 Sept 2004Castleford83578
14.8 cm14 Sept 2004Castleford83578

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
Kirkstall Abbey29 Jun 202629 Jun 20261
Chapel Haddelsey - Fry Survey21 Sept 200014 Aug 202512
Thwaite Mill fry Survey14 Aug 20138 Aug 20195
Castleford Fry Survey14 Aug 201316 Aug 20162
Upstream Esholt STW2 Jul 20142 Jul 20141
Swillington Bridge19 Aug 19982 Jul 20146
Hirstwood, u/s Bradford Beck26 May 19981 Jul 201412
Apperley Bridge1 Jul 20141 Jul 20141
Rodley20 Jul 200630 Jun 20142
Kirkstall (400m d/s weir)27 Aug 199830 Jun 201412
Crossflatts18 Aug 199827 Jun 20148
Silsden Bridge18 Aug 199826 Jun 20146
Carleton Bridge20 Aug 199827 Jun 20118
Dark Arches24 Jun 201124 Jun 20111
Thwaite Weir25 Aug 19985 Jul 201010
Cononley, below Snaygill STW27 Aug 199826 Jun 20084
Fairburn25 Sept 200725 Sept 20071
Castleford19 Aug 199822 Jul 20067
Newlay lower weir19 Jul 200519 Jul 20051
Chappel Haddlesey - u/s A191 Sept 199818 Jul 20054
Kirkstall (400 metre d/s) (Gill Net)9 Jul 200316 Jul 20042
Chapel Haddlesey - u/s A19 (Gill Net)18 Jul 200318 Jul 20031
Castleford (Gill Net)18 Jul 200318 Jul 20031
Bingley Downstream A65030 Jul 200230 Jul 20021
Kildwick Bridge (Gill Net)25 Jul 200225 Jul 20021
Kildwick Bridge25 Jul 200225 Jul 20021
Esholt STW26 Aug 199820 Jul 20022
Keighley (River Worth Confluence) - Fry Survey21 Sept 198418 Sept 200112
Carleton Bridge - Fry Survey24 Sept 199222 Sept 19994
Beal1 Sept 19981 Sept 19981
Knostrop - Fry Survey21 Sept 198419 Sept 19957

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

1984–2026

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 2,574 measured fish were spread across different length ranges.

Smallest
1.6 cm
Lower quarter
5.5 cm
Median
8.7 cm
Upper quarter
10.9 cm
Largest
42.2 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Aire

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

Minnow Stone loach Chub Bullhead Brown / sea trout 3-spined stickleback

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 →