RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the River Frome

Largest measured brown / sea trout: 33 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Frome was 33 cm, recorded at Mill Stream at East Stoke on 23 September 2008.

Across 272 measured brown / sea trout, the median measured length was 9.4 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 Frome.

See brown / sea trout records across England →

Most recent observation1 September 2025Mill Stream at East Stoke · 4 fish
Largest measured brown / sea trout
33 cm
Median length
9.4 cm
Fish measured
272
Survey locations
2

Individual EA measurements

Largest measured brown / sea trout

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

LengthSurvey dateSurvey locationSurvey ID
33 cm23 Sept 2008Mill Stream at East Stoke117078
30.5 cm27 Aug 2009Mill Stream at East Stoke118883
30.5 cm27 Aug 2009Mill Stream at East Stoke118883
29.4 cm19 Jul 2017Mill Stream at East Stoke151003
29 cm21 Jul 2023Mill Stream at East Stoke162754
25.9 cm19 Jul 2017Mill Stream at East Stoke151003
25.6 cm18 Oct 2002Carrier at West Stafford73027
24.7 cm18 Oct 2002Carrier at West Stafford73027
24 cm28 Aug 2013Mill Stream at East Stoke138687
23.8 cm18 Oct 2002Carrier at West Stafford73027

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

Explore the river

Where brown / sea trout were found

Each point marks a survey location with at least one brown / sea trout 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 brown / sea trout
Mill Stream at East Stoke18 Oct 20041 Sept 202514
Carrier at West Stafford18 Oct 200218 Oct 20021

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

2002–2025

Survey records by year

Each bar shows how many survey visits recorded brown / sea trout that year.

Fish measured by surveyors

Measured length distribution

See how the 272 measured fish were spread across different length ranges.

Smallest
2.7 cm
Lower quarter
8.2 cm
Median
9.4 cm
Upper quarter
15.8 cm
Largest
33 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Frome

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

Atlantic salmon Bullhead European eel Grayling Stone loach Pike

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 →