Brown / sea trout · Salmo trutta

Brown / sea trout in the Trawden Brook

Largest measured brown / sea trout: 30 cm

The largest brown / sea trout measured in Environment Agency surveys of the Trawden Brook was 30 cm, recorded at Upstream Road Bridge on 9 May 1984.

Across 52 measured brown / sea trout, the median measured length was 15.5 cm.

Surveyors recorded weights for 31 brown / sea trout. The median was 1.6 oz (0.045 kg) and the largest recorded weight was 10.6 oz (0.3 kg).

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

See brown / sea trout records across England →

Most recent observation7 August 2023Upstream Road Bridge · 21 fish

Largest measured brown / sea trout: 30 cm
Median length: 15.5 cm
Fish measured: 52
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
30 cm	9 May 1984	Upstream Road Bridge	115494
28 cm	9 May 1984	Upstream Road Bridge	115494
21 cm	7 Aug 2023	Upstream Road Bridge	162900
21 cm	9 May 1984	Upstream Trawden	115495
21 cm	9 May 1984	Upstream Road Bridge	115494
20 cm	9 May 1984	Upstream Trawden	115495
19.5 cm	9 May 1984	Upstream Road Bridge	115494
19 cm	9 May 1984	Upstream Road Bridge	115494
19 cm	9 May 1984	Upstream Road Bridge	115494
18.5 cm	9 May 1984	Upstream Road Bridge	115494

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
Upstream Road Bridge	9 May 1984	7 Aug 2023	3
Upstream Trawden	9 May 1984	9 May 1984	1
Downstream Trawden	9 May 1984	9 May 1984	1

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

1984–2023

Survey records by year

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

384

085

086

087

088

089

090

091

092

093

094

095

096

097

098

099

000

001

002

003

004

005

006

007

008

009

010

011

012

013

014

115

016

017

018

019

020

021

022

123

Fish measured by surveyors

Measured length distribution

See how the 52 measured fish were spread across different length ranges.

Smallest: 6.6 cm
Lower quarter: 13.3 cm
Median: 15.5 cm
Upper quarter: 16.5 cm
Largest: 30 cm

0–99 mm

100–199 mm

200–299 mm

300–399 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 31 brown / sea trout. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0.5 oz (0.015 kg)
Lower quarter: 1.2 oz (0.035 kg)
Median: 1.6 oz (0.045 kg)
Upper quarter: 2.6 oz (0.0725 kg)
Heaviest: 10.6 oz (0.3 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

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 →