Brown / sea trout · Salmo trutta

Brown / sea trout in the Main River Parrett

Largest measured brown / sea trout: 40.6 cm

The largest brown / sea trout measured in Environment Agency surveys of the Main River Parrett was 40.6 cm, recorded at Yeo Valley Creamery on 15 August 2013.

Across 753 measured brown / sea trout, the median measured length was 18.9 cm.

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

See brown / sea trout records across England →

Most recent observation2 September 2025Yeo Valley Creamery · 35 fish

Largest measured brown / sea trout: 40.6 cm
Median length: 18.9 cm
Fish measured: 753
Survey locations: 5

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
40.6 cm	15 Aug 2013	Yeo Valley Creamery	137907
40.5 cm	15 Aug 2013	Yeo Valley Creamery	137907
38.2 cm	3 Jul 2025	Bow Barn Farm	177331
36.8 cm	25 Jul 2023	Bow Barn Farm	162782
36.5 cm	3 Aug 2017	Yeo Valley Creamery	151125
36.3 cm	3 Jul 2025	Bow Barn Farm	177331
36.2 cm	15 Aug 2013	Yeo Valley Creamery	137907
34.5 cm	11 Aug 2015	Yeo Valley Creamery	145821
34.5 cm	30 Sept 2009	Bow Barn Farm	119071
34 cm	14 Aug 2019	Haselbury Mill	155138

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
Yeo Valley Creamery	28 Jul 2009	2 Sept 2025	9
Gawbridge	24 Jul 2025	24 Jul 2025	1
Haselbury Mill	10 Jul 2009	8 Jul 2025	9
Downstream Lecher Water	20 Jul 2009	8 Jul 2025	5
Bow Barn Farm	30 Sept 2009	3 Jul 2025	9

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

2009–2025

Survey records by year

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

409

010

311

012

413

014

315

016

317

018

319

020

421

022

423

024

525

Fish measured by surveyors

Measured length distribution

See how the 753 measured fish were spread across different length ranges.

Smallest: 5.2 cm
Lower quarter: 14 cm
Median: 18.9 cm
Upper quarter: 23.8 cm
Largest: 40.6 cm

0–99 mm

162

100–199 mm

248

200–299 mm

304

300–399 mm

400–499 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Main River Parrett

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

European eel Roach Perch Ruffe Gudgeon 3-spined stickleback

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 →