Brown / sea trout · Salmo trutta

Brown / sea trout in the Polmorla Stream

Largest measured brown / sea trout: 25 cm

The largest brown / sea trout measured in Environment Agency surveys of the Polmorla Stream was 25 cm, recorded at Treneague on 27 June 2017.

Across 79 measured brown / sea trout, the median measured length was 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 Polmorla Stream.

See brown / sea trout records across England →

Most recent observation16 June 2023Treneague · 15 fish

Largest measured brown / sea trout: 25 cm
Median length: 7 cm
Fish measured: 79
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.

Length	Survey date	Survey location	Survey ID
25 cm	27 Jun 2017	Treneague	150723
19.2 cm	16 Jun 2023	Treneague	162540
19 cm	27 Jun 2017	Treneague	150723
18 cm	27 Jun 2017	Treneague	150723
17.5 cm	16 Jun 2023	Treneague	162540
17.4 cm	27 Jun 2017	Treneague	150723
16.6 cm	16 Jun 2023	Treneague	162540
16.2 cm	27 Jun 2017	Treneague	150723
16 cm	27 Jun 2017	Treneague	150723
15.2 cm	27 Jun 2017	Treneague	150723

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
Treneague	2 Jul 1985	16 Jun 2023	9
Polmorla	2 Jul 1985	3 Jul 2000	5

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

1985–2023

Survey records by year

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

285

086

087

088

089

090

291

092

093

294

095

096

297

098

099

200

001

002

003

004

005

106

007

008

009

010

111

012

013

014

015

016

117

018

019

020

021

022

123

Fish measured by surveyors

Measured length distribution

See how the 79 measured fish were spread across different length ranges.

Smallest: 4.4 cm
Lower quarter: 5.5 cm
Median: 7 cm
Upper quarter: 13.2 cm
Largest: 25 cm

0–99 mm

100–199 mm

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Polmorla Stream

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

European eel

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 →