RiverFish

Bullhead · Cottus gobio

Bullhead in the River Little Dart

Largest measured bullhead: 9.1 cm

The largest bullhead measured in Environment Agency surveys of the River Little Dart was 9.1 cm, recorded at Stone Mill (Sp) on 20 September 2018.

Across 202 measured bullhead, the median measured length was 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 River Little Dart.

See bullhead records across England →

Most recent observation1 August 2025Stone Mill (Sp) · 27 fish
Largest measured bullhead
9.1 cm
Median length
5 cm
Fish measured
202
Survey locations
7

Individual EA measurements

Largest measured bullhead

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
9.1 cm20 Sept 2018Stone Mill (Sp)153611
7.6 cm21 Jun 2018Rackenford (Te)152694
7.5 cm13 Jul 2016Witheridge (Te)148475
7.2 cm20 Sept 2018Stone Mill (Sp)153611
7.2 cm20 Sept 2018Stone Mill (Sp)153611
7.2 cm21 Jun 2018Witheridge (Te)152695
7.2 cm21 Jun 2018Witheridge (Te)152695
7 cm20 Sept 2018Stone Mill (Sp)153611
7 cm20 Sept 2018Stone Mill (Sp)153611
7 cm25 Jul 2018West Worlington (Sp)152914

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where bullhead were found

Each point marks a survey location with at least one bullhead 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 bullhead
Stone Mill (Sp)1 Aug 19961 Aug 20256
West Worlington (Sp)1 Aug 199630 Jul 20256
Witheridge (Te)1 Aug 199627 Jun 202518
Rackenford (Te)29 Jul 199627 Jun 202519
Savoury's (Sp)*2 Aug 199613 Sept 19992
Bradford Mill (Sp)*2 Aug 19962 Aug 19961
Queen Dart (Sp)*29 Jul 199629 Jul 19961

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

1996–2025

Survey records by year

Each bar shows how many survey visits recorded bullhead that year.

Fish measured by surveyors

Measured length distribution

See how the 202 measured fish were spread across different length ranges.

Smallest
1.5 cm
Lower quarter
3.1 cm
Median
5 cm
Upper quarter
6 cm
Largest
9.1 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Little Dart

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

Brown / sea trout Atlantic salmon Stone loach European eel Minnow

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 →