RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the River Derwent

Largest measured brown / sea trout: 51.4 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Derwent was 51.4 cm, recorded at River Derwent at Lintzford on 3 September 2014.

Across 4,575 measured brown / sea trout, the median measured length was 8.5 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 Derwent.

See brown / sea trout records across England →

Most recent observation15 July 2025River Derwent at Rowlands Gill · 23 fish
Largest measured brown / sea trout
51.4 cm
Median length
8.5 cm
Fish measured
4,575
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
51.4 cm3 Sept 2014River Derwent at Lintzford142504
50.4 cm27 Sept 2015River Derwent at Lintzford146754
47 cm3 Sept 2014River Derwent at Lintzford142504
46 cm11 Oct 2016River Derwent at Rowlands Gill149640
33.4 cm14 Jul 2025River Derwent at Allensford177523
31.7 cm27 Sept 2015River Derwent at Lintzford146754
31.4 cm18 Jul 2011River Derwent at Blackhall Mill128995
31 cm30 Jun 2023River Derwent at Shotley Bridge163634
31 cm3 Sept 2014River Derwent at Hag Hill142502
30.6 cm30 Jun 2023River Derwent at Shotley Bridge163634

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
River Derwent at Rowlands Gill21 Aug 200715 Jul 202510
River Derwent at Ebchester21 Aug 200715 Jul 20254
River Derwent at Clockburn28 Aug 200715 Jul 20254
River Derwent at Blackhall Mill13 Sept 200415 Jul 202514
River Derwent at Shotley Bridge14 Aug 200714 Jul 202510
River Derwent at Cricket Club20 Aug 200714 Jul 20254
River Derwent at Allensford20 Aug 200714 Jul 202514
Wharnley Burn at Wharnley Burn bridge16 Jul 200711 Jul 20254
River Derwent at Ruffside Picnic Site27 Sept 200411 Jul 20258
River Derwent at Eddy's Bridge28 Aug 200711 Jul 20258
River Derwent at Crooked Oak21 Sept 200611 Jul 20256
Hisehope Burn26 Jun 200711 Jul 20254
River Derwent at Hag Hill27 Aug 200718 Aug 20177
River Derwent at Lintzford2 Aug 201317 Aug 20175
Dene Burn 217 Aug 201717 Aug 20171
Dene Burn 117 Aug 201717 Aug 20171
River Derwent at Ebchester Bridge2 Sept 200926 Sept 20152
River Derwent at Blanchland27 Sept 200413 Sept 20093
River Derwent at Rowlands Gill Caravan Park14 Oct 200514 Oct 20051

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

2004–2025

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 4,575 measured fish were spread across different length ranges.

Smallest
3.6 cm
Lower quarter
7.2 cm
Median
8.5 cm
Upper quarter
11.7 cm
Largest
51.4 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Derwent

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

Minnow Bullhead Stone loach European eel Atlantic salmon Grayling

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 →