Brown / sea trout · Salmo trutta

Brown / sea trout in the Tosside Beck

Largest measured brown / sea trout: 29.9 cm

The largest brown / sea trout measured in Environment Agency surveys of the Tosside Beck was 29.9 cm, recorded at At Holiday Cottages on 13 August 2003.

Across 226 measured brown / sea trout, the median measured length was 7.1 cm.

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

See brown / sea trout records across England →

Most recent observation2 August 2021Grunsagill Bridge · 55 fish

Largest measured brown / sea trout: 29.9 cm
Median length: 7.1 cm
Fish measured: 226
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
29.9 cm	13 Aug 2003	At Holiday Cottages	78485
24.5 cm	11 Sept 2008	Grunsagill Bridge	114431
18 cm	19 Aug 1998	Grunsagill Bridge	112287
18 cm	19 Aug 1998	Grunsagill Bridge	112287
17.6 cm	11 Sept 2008	Grunsagill Bridge	114431
17.4 cm	5 Aug 1986	Grunsagill Bridge	115383
17.3 cm	25 Sept 1987	Grunsagill Bridge	115336
16.7 cm	11 Sept 2008	Grunsagill Bridge	114431
16.3 cm	5 Aug 1986	Grunsagill Bridge	115383
16 cm	19 Aug 1998	Grunsagill Bridge	112287

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
Grunsagill Bridge	5 Aug 1986	2 Aug 2021	8
At Holiday Cottages	13 Aug 2003	13 Aug 2003	1
Tosside Rd Bridge	19 Aug 1998	19 Aug 1998	1

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

1986–2021

Survey records by year

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

186

187

088

089

090

191

092

093

094

095

096

097

298

099

000

001

002

203

004

005

006

007

108

009

010

011

012

013

114

015

016

017

018

019

020

121

Fish measured by surveyors

Measured length distribution

See how the 226 measured fish were spread across different length ranges.

Smallest: 3.7 cm
Lower quarter: 6.2 cm
Median: 7.1 cm
Upper quarter: 10 cm
Largest: 29.9 cm

0–99 mm

168

100–199 mm

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

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 →