RiverFish

Gudgeon · Gobio gobio

Gudgeon in the Harpers Brook

Largest measured gudgeon: 15 cm

The largest gudgeon measured in Environment Agency surveys of the Harpers Brook was 15 cm, recorded at Downstream Islip Gauging Weir on 16 March 1995.

Across 413 measured gudgeon, the median measured length was 10.5 cm.

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

See gudgeon records across England →

Most recent observation4 April 2006Downstream Islip Gauging Weir · 51 fish
Largest measured gudgeon
15 cm
Median length
10.5 cm
Fish measured
413
Survey locations
5

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
15 cm16 Mar 1995Downstream Islip Gauging Weir54435
14 cm21 Feb 1992Downstream Islip Gauging Weir54430
13.5 cm16 Mar 1995Downstream Islip Gauging Weir54435
13.5 cm16 Mar 1995Downstream Islip Gauging Weir54435
13.5 cm21 Feb 1992Downstream Islip Gauging Weir54430
13 cm16 Mar 1995Downstream Islip Gauging Weir54435
13 cm16 Mar 1995Downstream Islip Gauging Weir54435
13 cm16 Mar 1995Downstream Islip Gauging Weir54435
13 cm16 Mar 1995Downstream Islip Gauging Weir54435
13 cm16 Mar 1995Downstream Islip Gauging Weir54435

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
Downstream Islip Gauging Weir1 Mar 19894 Apr 20065
Riffle (Harpers Brook TNR)23 Mar 199523 Mar 19951
Lowick6 Mar 198915 Mar 19952
Pool 2 (Harpers Brook TNR)13 Mar 199513 Mar 19951
Pool 1 (Harpers Brook TNR)13 Mar 199513 Mar 19951

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

1989–2006

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 413 measured fish were spread across different length ranges.

Smallest
6.5 cm
Lower quarter
9 cm
Median
10.5 cm
Upper quarter
11.5 cm
Largest
15 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Harpers Brook

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

Minnow Bullhead Chub Dace Stone loach Roach

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 →