Brown / sea trout · Salmo trutta

Brown / sea trout in the Youlden Brook

Largest measured brown / sea trout: 25.5 cm

The largest brown / sea trout measured in Environment Agency surveys of the Youlden Brook was 25.5 cm, recorded at Youlden on 3 July 1998.

Across 1,001 measured brown / sea trout, the median measured length was 6.7 cm.

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

See brown / sea trout records across England →

Most recent observation25 June 2025Youlden · 42 fish

Largest measured brown / sea trout: 25.5 cm
Median length: 6.7 cm
Fish measured: 1,001
Survey locations: 1

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
25.5 cm	3 Jul 1998	Youlden	105052
23.8 cm	9 Jul 1999	Youlden	104734
22.2 cm	9 Jul 2003	Youlden	76578
21.3 cm	3 Jul 1998	Youlden	105052
21.1 cm	20 Jun 2019	Youlden	155120
20.8 cm	28 Jun 2010	Youlden	122844
20.7 cm	16 Jun 2006	Youlden	100473
20.6 cm	7 Jul 2004	Youlden	81366
20.1 cm	11 Jul 2002	Youlden	72395
20 cm	25 Jun 2015	Youlden	145150

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
Youlden	26 Feb 1983	25 Jun 2025	20

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

1983–2025

Survey records by year

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

183

084

085

086

087

088

089

090

091

092

093

094

095

096

097

198

199

100

001

102

103

104

105

106

107

108

109

110

111

012

113

014

115

016

117

018

119

020

021

022

123

024

125

Fish measured by surveyors

Measured length distribution

See how the 1,001 measured fish were spread across different length ranges.

Smallest: 3.6 cm
Lower quarter: 5.7 cm
Median: 6.7 cm
Upper quarter: 11.5 cm
Largest: 25.5 cm

0–99 mm

627

100–199 mm

364

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Youlden Brook

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

Atlantic salmon 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 →