RiverFish

Gudgeon · Gobio gobio

Gudgeon in the Hammer Stream

Largest measured gudgeon: 12.8 cm

The largest gudgeon measured in Environment Agency surveys of the Hammer Stream was 12.8 cm, recorded at Buckhurst Farm d/s Weir (Site 2) on 4 July 2016.

Across 28 measured gudgeon, the median measured length was 9.2 cm.

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

See gudgeon records across England →

Most recent observation4 July 2016Buckhurst Farm u/s Weir (Site 3) · 1 fish
Largest measured gudgeon
12.8 cm
Median length
9.2 cm
Fish measured
28
Survey locations
3

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
12.8 cm4 Jul 2016Buckhurst Farm d/s Weir (Site 2)150220
11.2 cm4 Jul 2016Upstream Buckhurst Bridge (Site 1)150219
11.1 cm4 Jul 2016Buckhurst Farm d/s Weir (Site 2)150220
10.9 cm4 Jul 2016Upstream Buckhurst Bridge (Site 1)150219
10.6 cm4 Jul 2016Upstream Buckhurst Bridge (Site 1)150219
10.3 cm4 Jul 2016Upstream Buckhurst Bridge (Site 1)150219
10.2 cm4 Jul 2016Upstream Buckhurst Bridge (Site 1)150219
10 cm4 Jul 2016Buckhurst Farm d/s Weir (Site 2)150220
9.8 cm4 Jul 2016Upstream Buckhurst Bridge (Site 1)150219
9.5 cm4 Jul 2016Upstream Buckhurst Bridge (Site 1)150219

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
Upstream Buckhurst Bridge (Site 1)4 Jul 20164 Jul 20161
Buckhurst Farm u/s Weir (Site 3)4 Jul 20164 Jul 20161
Buckhurst Farm d/s Weir (Site 2)4 Jul 20164 Jul 20161

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

2016–2016

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 28 measured fish were spread across different length ranges.

Smallest
6.4 cm
Lower quarter
8.1 cm
Median
9.2 cm
Upper quarter
10.1 cm
Largest
12.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Hammer Stream

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

Pike 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 →