Brown / sea trout · Salmo trutta

Brown / sea trout in the River Thames Tribs

Largest measured brown / sea trout: 36.9 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Thames Tribs was 36.9 cm, recorded at Bray Mill Stream on 21 September 2015.

Across 5 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 Thames Tribs.

See brown / sea trout records across England →

Most recent observation5 November 2019Roundmoor Ditch · 1 fish

Largest measured brown / sea trout: 36.9 cm
Median length: 24.7 cm
Fish measured: 5
Survey locations: 3

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.

Length	Survey date	Survey location	Survey ID
36.9 cm	21 Sept 2015	Bray Mill Stream	146675
28.4 cm	8 Aug 2006	Odney Stream	100523
24.7 cm	29 Sept 2009	Bray Mill Stream	119152
24.6 cm	23 Sept 2015	Odney Stream	146676
12.5 cm	5 Nov 2019	Roundmoor Ditch	155944

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 surveyed	First recorded	Last recorded	Visits finding brown / sea trout
Roundmoor Ditch	5 Nov 2019	5 Nov 2019	1
Odney Stream	8 Aug 2006	23 Sept 2015	2
Bray Mill Stream	29 Sept 2009	21 Sept 2015	2

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

2006–2019

Survey records by year

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

106

007

008

109

010

011

012

013

014

215

016

017

018

119

Fish measured by surveyors

Measured length distribution

See how the 5 measured fish were spread across different length ranges.

Smallest: 12.5 cm
Lower quarter: 24.6 cm
Median: 24.7 cm
Upper quarter: 28.4 cm
Largest: 36.9 cm

100–199 mm

200–299 mm

300–399 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Thames Tribs

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

Chub Dace Gudgeon Roach European eel Perch

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 →