RiverFish

Gudgeon · Gobio gobio

Gudgeon in the River Lostock

Largest measured gudgeon: 17.2 cm

The largest gudgeon measured in Environment Agency surveys of the River Lostock was 17.2 cm, recorded at Lower Copthurst on 26 June 2002.

Across 511 measured gudgeon, the median measured length was 12.3 cm.

Surveyors recorded weights for 108 gudgeon. The median was 0.7 oz (0.02 kg) and the largest recorded weight was 2.8 oz (0.08 kg).

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the River Lostock.

See gudgeon records across England →

Most recent observation5 July 2023Cowling lane · 4 fish
Largest measured gudgeon
17.2 cm
Median length
12.3 cm
Fish measured
511
Survey locations
16

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
17.2 cm26 Jun 2002Lower Copthurst79664
16.5 cm25 Jul 2018Cowling lane152960
16 cm23 Aug 2001Lower Copthurst90169
16 cm28 Jul 1995500m Above Ulnes Walton Bridge112913
15.7 cm19 Jul 2005Mill Lane87763
15.7 cm30 Aug 2002Tudor Croft79675
15.5 cm17 Aug 2006Mill Lane101252
15.5 cm3 Aug 2006Havelock Road101267
15.5 cm30 Aug 2002Tudor Croft79675
15.5 cm26 Jun 2002Lower Copthurst79664

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
Cowling lane4 Aug 20055 Jul 20234
Mill Lane24 Mar 199517 Aug 20065
Havelock Road24 Jul 20003 Aug 200610
Todd Lane South28 Jun 200225 Jul 20063
Sheep Hill Lane10 Jul 199529 Jun 20058
Tudor Croft24 Jun 199918 Jun 20044
Sherdeley Road24 Aug 200118 Jun 20046
Lower Copthurst10 Jul 19956 Sept 20039
Cuerden Valley Park 110 Jul 199524 Jul 20002
Below STW outfall19 Jul 200019 Jul 20001
Johnson House Farm31 Jul 199531 Jul 19951
500m Above Ulnes Walton Bridge5 Apr 199528 Jul 19952
Below Farrington Weir27 Jul 199527 Jul 19951
Above STW outfall4 Apr 199526 Jul 19952
Earnshaw Bridge24 Jul 199524 Jul 19951
Lostock Bridge at Croston22 Mar 199522 Mar 19951

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

1995–2023

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 511 measured fish were spread across different length ranges.

Smallest
0.1 cm
Lower quarter
10.2 cm
Median
12.3 cm
Upper quarter
13.6 cm
Largest
17.2 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 108 gudgeon. This is a subset of the measured fish and may not represent the whole population.

Lightest
0.1 oz (0.002 kg)
Lower quarter
0.4 oz (0.01 kg)
Median
0.7 oz (0.02 kg)
Upper quarter
1.1 oz (0.03 kg)
Heaviest
2.8 oz (0.08 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the River Lostock

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

European eel Chub Roach Dace Perch Flounder

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 →