Brown / sea trout · Salmo trutta

Brown / sea trout in the River Main Plym

Largest measured brown / sea trout: 64.1 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Main Plym was 64.1 cm, recorded at Ham on 24 July 2002.

Across 1,579 measured brown / sea trout, the median measured length was 9.6 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 Main Plym.

See brown / sea trout records across England →

Most recent observation7 August 2025Ham · 32 fish

Largest measured brown / sea trout: 64.1 cm
Median length: 9.6 cm
Fish measured: 1,579
Survey locations: 11

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
64.1 cm	24 Jul 2002	Ham	68520
63.5 cm	24 Jul 2002	Ham	68520
62.2 cm	21 Aug 2009	Ham	118554
60.7 cm	19 Jul 2005	Ham	86433
59.8 cm	19 Jul 2005	Ham	86433
58.5 cm	6 Aug 2003	Ham	77130
54.6 cm	24 Jul 2002	Ham	68520
54.5 cm	6 Jul 1998	Lower Cadworthy	102063
51.8 cm	19 Jul 2004	Ham	81313
51.6 cm	24 Jul 2002	Ham	68520

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
Ham	23 Jan 1982	7 Aug 2025	19
Brisworthy	26 Jul 1982	16 Jul 2025	8
Great Shaugh Wood	7 Jul 1982	4 Jul 2025	9
u/s Cadover	25 Jun 1998	23 Jun 2025	8
Plym Bridge	29 Jul 1982	20 Jun 2025	7
Lower Cadover	17 Jul 2023	17 Jul 2023	1
Upstream Ham	13 Jul 2023	13 Jul 2023	1
Lower Cadworthy	20 Jul 1982	6 Jul 2006	3
Bickleigh	30 Jun 2006	30 Jun 2006	1
Hartor	19 Jul 1982	7 Jun 2002	3
Ditsworthy Warren	22 Jul 1982	5 Jun 2002	3

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

1982–2025

Survey records by year

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

782

083

084

085

086

087

088

089

090

091

092

093

094

095

296

097

898

099

000

001

602

103

104

105

606

507

208

109

110

111

012

513

014

115

016

117

018

519

020

021

022

423

024

525

Fish measured by surveyors

Measured length distribution

See how the 1,579 measured fish were spread across different length ranges.

Smallest: 3.4 cm
Lower quarter: 5.7 cm
Median: 9.6 cm
Upper quarter: 13.2 cm
Largest: 64.1 cm

0–99 mm

801

100–199 mm

689

200–299 mm

300–399 mm

400–499 mm

500–599 mm

600–699 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Main Plym

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

European eel Atlantic salmon Bullhead Minnow Flounder

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 →