RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the River Dee

Largest measured brown / sea trout: 48.4 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Dee was 48.4 cm, recorded at Church Bridge on 19 July 2002.

Across 1,147 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 River Dee.

See brown / sea trout records across England →

Most recent observation21 October 2025Island, River Dee · 6 fish
Largest measured brown / sea trout
48.4 cm
Median length
7 cm
Fish measured
1,147
Survey locations
10

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.

LengthSurvey dateSurvey locationSurvey ID
48.4 cm19 Jul 2002Church Bridge78658
45.3 cm19 Jul 2002Church Bridge78658
45 cm30 Jul 1991Barth Bridge, River Dee115105
35.5 cm30 Jul 1991Barth Bridge, River Dee115105
34.5 cm30 Jul 1991Barth Bridge, River Dee115105
28.5 cm22 Jul 2002Rashmill d/s Weir, River Dee83392
28.4 cm24 Jul 2013Rashmill d/s Weir, River Dee137602
28 cm4 Sept 2013Upstream Lea Yeat Bridge, River Dee138614
26 cm4 Sept 2013Upstream Lea Yeat Bridge, River Dee138614
25.8 cm4 Sept 2013Upstream Lea Yeat Bridge, River Dee138614

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 surveyedFirst recordedLast recordedVisits finding brown / sea trout
Island, River Dee3 Jul 198121 Oct 202520
Barth Bridge, River Dee3 Jul 198121 Oct 202512
Upstream Lea Yeat Bridge, River Dee4 Sept 20134 Sept 20131
Rashmill d/s Weir, River Dee3 Jul 198124 Jul 201311
Hell Hole31 Jul 199130 Jul 20074
Wood Bridge3 Jul 198530 Aug 20024
Church Bridge3 Jul 198119 Jul 20028
Ptc River Rawthey1 Aug 19911 Aug 19911
Upstream Barth Bridge30 Jul 199130 Jul 19911
High Hall Upstream Hell Hole25 Jul 199125 Jul 19911

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

1981–2025

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 1,147 measured fish were spread across different length ranges.

Smallest
4 cm
Lower quarter
6 cm
Median
7 cm
Upper quarter
9.3 cm
Largest
48.4 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Dee

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

Atlantic salmon European eel Brook lamprey

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 →