Brown / sea trout · Salmo trutta

Brown / sea trout in the Hether Burn

Largest measured brown / sea trout: 25 cm

The largest brown / sea trout measured in Environment Agency surveys of the Hether Burn was 25 cm, recorded at 2241.95 US Fergushill bridge on 25 July 2025.

Across 8 measured brown / sea trout, the median measured length was 20.1 cm.

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

See brown / sea trout records across England →

Most recent observation25 July 20252241.95 US Fergushill bridge · 3 fish

Largest measured brown / sea trout: 25 cm
Median length: 20.1 cm
Fish measured: 8
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 cm	25 Jul 2025	2241.95 US Fergushill bridge	177586
23 cm	25 Jul 2025	2241.95 US Fergushill bridge	177586
22 cm	2 Sept 2019	2241.95 US Fergushill bridge	155347
20.3 cm	2 Sept 2019	2241.95 US Fergushill bridge	155347
19.8 cm	2 Sept 2019	2241.95 US Fergushill bridge	155347
19.5 cm	25 Jul 2025	2241.95 US Fergushill bridge	177586
17.9 cm	2 Sept 2019	2241.95 US Fergushill bridge	155347
16.5 cm	12 Jul 2021	2241.95 US Fergushill bridge	160013

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
2241.95 US Fergushill bridge	31 Aug 2011	25 Jul 2025	8

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

2011–2025

Survey records by year

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

111

012

113

014

115

116

117

018

119

020

121

022

023

024

125

Fish measured by surveyors

Measured length distribution

See how the 8 measured fish were spread across different length ranges.

Smallest: 16.5 cm
Lower quarter: 19.1 cm
Median: 20.1 cm
Upper quarter: 22.3 cm
Largest: 25 cm

100–199 mm

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Hether Burn

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

European eel Atlantic salmon

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 →