RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the River Duddon

Largest measured brown / sea trout: 34 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Duddon was 34 cm, recorded at 701.99 US Stonestar CPUE on 23 August 2023.

Across 164 measured brown / sea trout, the median measured length was 6.6 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 Duddon.

See brown / sea trout records across England →

Most recent observation24 September 2024705.10 US Hall Dunnerdale Bridge CPUE · 3 fish
Largest measured brown / sea trout
34 cm
Median length
6.6 cm
Fish measured
164
Survey locations
19

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
34 cm23 Aug 2023701.99 US Stonestar CPUE163067
28 cm5 Sept 2024703.99 PTC Crosby Gill CPUE166894
24 cm23 Aug 2023701.99 US Stonestar CPUE163067
16 cm24 Sept 2024705.00 Hall Dunnerdale Bridge167307
15.3 cm29 Jul 2024705.50 PTC Tarn Gill CPUE166895
15.2 cm24 Sept 2024705.00 Hall Dunnerdale Bridge167307
15.1 cm31 Jul 2024701.99 US Stonestar CPUE166892
15 cm26 Jul 2024709.00 PTC Mosedale Beck166898
15 cm26 Jul 2024709.00 PTC Mosedale Beck166898
14.9 cm23 Aug 2023701.99 US Stonestar CPUE163067

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
705.10 US Hall Dunnerdale Bridge CPUE17 Aug 202324 Sept 20242
705.00 Hall Dunnerdale Bridge24 Aug 199324 Sept 202412
703.99 PTC Crosby Gill CPUE7 Jul 20235 Sept 20242
708.30 DS Birks Bridge CPUE6 Jul 202314 Aug 20242
707.20 US Hinning House CPUE6 Jul 202314 Aug 20242
701.99 US Stonestar CPUE23 Aug 202331 Jul 20242
705.50 PTC Tarn Gill CPUE6 Jul 202329 Jul 20242
709.00 PTC Mosedale Beck19 Aug 199326 Jul 20245
701.20 DS Duddon Bridge CPUE23 Aug 202323 Aug 20231
702.90 DS Ulpha Bridge CPUE7 Jul 20237 Jul 20231
708.00 PTC Castle Howe19 Aug 199322 Aug 20116
707.00 Troutal19 Aug 199311 Aug 20052
704.00 PTC Crosby Gill8 Sept 199311 Aug 20052
703.00 Ulpha Bridge9 Sept 199311 Aug 20052
702.00 Upstream Stone Star9 Sept 199311 Aug 20052
701.00 Duddon Bridge9 Sept 19939 Sept 19931
PTC Gaitscale24 Aug 199324 Aug 19931
The Syke19 Aug 199319 Aug 19931
PTC Grassguards Gill18 Aug 199318 Aug 19931

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

1993–2024

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 164 measured fish were spread across different length ranges.

Smallest
4.3 cm
Lower quarter
5.7 cm
Median
6.6 cm
Upper quarter
10.4 cm
Largest
34 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Duddon

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 →