RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the River Thame

Largest measured brown / sea trout: 37.9 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Thame was 37.9 cm, recorded at Shabbington (West Arm) on 16 September 2003.

Across 9 measured brown / sea trout, the median measured length was 24.7 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 Thame.

See brown / sea trout records across England →

Most recent observation17 September 2025Chiselhampton · 2 fish
Largest measured brown / sea trout
37.9 cm
Median length
24.7 cm
Fish measured
9
Survey locations
4

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
37.9 cm16 Sept 2003Shabbington (West Arm)77197
27.6 cm17 Sept 2025Chiselhampton178752
27.1 cm28 Sept 2010Chiselhampton124897
26.1 cm20 Sept 2004Waterstock Mill82524
24.7 cm21 Sept 2010Dorchester Road Bridge124893
23.5 cm8 Sept 2005Dorchester Road Bridge86032
22.1 cm17 Sept 2025Chiselhampton178752
22.1 cm21 Sept 2010Dorchester Road Bridge124893
22 cm27 Sept 2013Dorchester Road Bridge138944

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
Chiselhampton28 Sept 201017 Sept 20252
Dorchester Road Bridge8 Sept 200527 Sept 20133
Waterstock Mill20 Sept 200420 Sept 20041
Shabbington (West Arm)16 Sept 200316 Sept 20031

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

2003–2025

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 9 measured fish were spread across different length ranges.

Smallest
22 cm
Lower quarter
22.1 cm
Median
24.7 cm
Upper quarter
27.1 cm
Largest
37.9 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Thame

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

Chub Roach Gudgeon Dace Perch 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 →