RiverFish

Atlantic salmon · Salmo salar

Atlantic salmon in the River Derwent

Largest measured atlantic salmon: 15.4 cm

The largest atlantic salmon measured in Environment Agency surveys of the River Derwent was 15.4 cm, recorded at Duffield Bridge on 17 September 2024.

Across 78 measured atlantic salmon, the median measured length was 9.9 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 atlantic salmon records across England →

Most recent observation29 September 2025Duffield Bridge · 3 fish
Largest measured atlantic salmon
15.4 cm
Median length
9.9 cm
Fish measured
78
Survey locations
4

Individual EA measurements

Largest measured atlantic salmon

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
15.4 cm17 Sept 2024Duffield Bridge167402
13.3 cm17 Oct 2017Belper Weir Salmon Parr152123
13.2 cm25 Feb 2016Borrowash Fish Pass Pool1147861
12.4 cm17 Oct 2017Duffield Bridge152072
12.1 cm17 Oct 2017Duffield Bridge152072
12 cm17 Oct 2017Duffield Bridge152072
12 cm3 Oct 2016Duffield Bridge149559
11.8 cm4 Sept 2014Duffield Bridge142978
11.7 cm17 Oct 2017Duffield Bridge152072
11.4 cm29 Sept 2025Duffield Bridge179191

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where atlantic salmon were found

Each point marks a survey location with at least one atlantic salmon 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 atlantic salmon
Duffield Bridge4 Sept 201429 Sept 20259
Belper Weir Salmon Parr17 Oct 201717 Oct 20171
Borrowash Fish Pass Pool125 Feb 201616 Sept 20162
DS Longbridge Weir4 Sept 20144 Sept 20141

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

2014–2025

Survey records by year

Each bar shows how many survey visits recorded atlantic salmon that year.

Fish measured by surveyors

Measured length distribution

See how the 78 measured fish were spread across different length ranges.

Smallest
7.7 cm
Lower quarter
9 cm
Median
9.9 cm
Upper quarter
10.8 cm
Largest
15.4 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.

Brown / sea trout Bullhead Minnow Grayling Chub Stone loach

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 →