RiverFish

Gudgeon · Gobio gobio

Gudgeon in the River Don

Largest measured gudgeon: 19.6 cm

The largest gudgeon measured in Environment Agency surveys of the River Don was 19.6 cm, recorded at Kilnhurst Bridge on 23 July 2008.

Across 2,907 measured gudgeon, the median measured length was 9.3 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 Don.

See gudgeon records across England →

Most recent observation12 August 2025Kilnhurst - Fry Survey · 21 fish
Largest measured gudgeon
19.6 cm
Median length
9.3 cm
Fish measured
2,907
Survey locations
37

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
19.6 cm23 Jul 2008Kilnhurst Bridge114154
19.2 cm15 Jul 2011Kilnhurst Bridge127030
17.7 cm22 Jul 2010Hexthorpe124936
16.7 cm28 Jul 2011Doncaster (crimpsal) DON/CO/TEMP/003128896
16.7 cm17 Jul 2008Blackburn Meadows d/s weir DON/CO/TEMP/001114138
16.4 cm15 Jul 2008Conisborough111873
16.2 cm3 Oct 1997Doncaster (crimpsal) DON/CO/TEMP/00324547
16.2 cm16 Oct 1984Wortley109942
15.9 cm16 Oct 1984Borough Bridge, Sheffield109943
15.8 cm6 Oct 1997Hillsborough24472

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
Kilnhurst - Fry Survey11 Sept 201012 Aug 20257
Doncaster (crimpsal) DON/CO/TEMP/0036 Dec 19904 Aug 202519
Kilnhurst Bridge30 Jun 200531 Jul 202513
Blackburn Meadows d/s weir DON/CO/TEMP/00117 Oct 198425 Jul 202424
Kelham Island Museum26 Aug 20053 Sept 20234
Sprotborough - Fry Survey29 Sept 199716 Aug 20236
Hexthorpe27 Jun 20052 Aug 20177
Conisborough26 Jul 200520 Jul 20178
Below Sprotborough Weir DON/CO/TEMP/00218 Oct 19843 Jul 201718
Effingham Street, sheffield26 Jul 20115 Sept 20144
Blonk Street, sheffield28 Jul 201221 Aug 20132
Firth Rixon8 Jul 20138 Jul 20131
Nursery Street, Sheffield30 Jul 20112 Aug 20122
Livesey Street - Owlerton, Sheffield22 Aug 200516 Sept 20112
Kelham Island (Channel 2)15 Jul 201115 Jul 20111
Dearne Valley Leisure Centre27 Jun 200529 Jul 20083
Rotherham Road Bridge5 Aug 20065 Aug 20061
Marsh Street P/S, Rotherham15 Nov 19901 Aug 20065
Tesco Weir - Masbrough, Rotherham23 Jun 200524 Jul 20062
Upstream Aldwarke Weir17 Oct 200517 Oct 20051
Oughtibridge18 Nov 199726 Aug 20052
Attercliffe Road5 Aug 20055 Aug 20051
Oxspring Bridge (WR)23 Aug 200423 Aug 20041
Grimethorpe Pond25 Mar 200425 Mar 20041
Below Blackburn Meadows (new site)12 Jul 200212 Jul 20021
Stainforth18 Dec 199011 Nov 19973
Beeley Wood, d/s weir13 Nov 199016 Oct 19973
Smithfield House, Sheffield6 May 198210 Oct 19974
Hillsborough6 Oct 19976 Oct 19971
Borough Bridge, Sheffield24 Sept 19816 Oct 19976
Meadowhall6 May 198230 Sept 19975
Wortley2 Sept 198123 Sept 19976
Below Aldwarke Weir26 Oct 199326 Oct 19931
Went Confluence25 Oct 199325 Oct 19931
Wharncliffe Side23 Sept 199323 Sept 19931
Thorpe Marsh PS2 Jun 198231 Aug 19932
Stocksbridge STW US8 Oct 19878 Oct 19871

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

1981–2025

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 2,907 measured fish were spread across different length ranges.

Smallest
2 cm
Lower quarter
7.6 cm
Median
9.3 cm
Upper quarter
10.7 cm
Largest
19.6 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Don

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

3-spined stickleback Brown / sea trout Roach Minnow Perch 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 →