RiverFish

Gudgeon · Gobio gobio

Gudgeon in the River Mersey

Largest measured gudgeon: 17 cm

The largest gudgeon measured in Environment Agency surveys of the River Mersey was 17 cm, recorded at Mrme05 on 14 July 2006.

Across 311 measured gudgeon, the median measured length was 11.9 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 Mersey.

See gudgeon records across England →

Most recent observation25 September 2010Mrme30 · 1 fish
Largest measured gudgeon
17 cm
Median length
11.9 cm
Fish measured
311
Survey locations
8

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
17 cm14 Jul 2006Mrme05100557
16.7 cm18 Sept 2005Mrme4586252
16 cm26 Sept 2004Mrme4582502
15.9 cm26 Sept 2004Mrme4582502
15.6 cm20 Sept 2009Mrme45120838
15.6 cm2 Oct 2003Mrme2077831
15.5 cm26 Sept 2004Mrme4582502
15.4 cm5 May 2009Mrme30120836
15.3 cm20 Sept 2009Mrme45120838
15.1 cm26 Sept 2004Mrme4582502

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
Mrme304 Nov 200725 Sept 20103
Mrme4517 Aug 200320 Sept 20095
Mrme1127 Jun 200514 Jul 20062
Mrme052 Oct 200314 Jul 20063
Mrme202 Oct 20037 Jun 20062
Mrme106 Aug 20036 Aug 20031
Mrme1517 Oct 200217 Oct 20021
Mrme3311 May 200018 Oct 20008

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

2000–2010

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 311 measured fish were spread across different length ranges.

Smallest
3.3 cm
Lower quarter
9.8 cm
Median
11.9 cm
Upper quarter
13.4 cm
Largest
17 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Mersey

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

Roach 3-spined stickleback Chub 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 →