RiverFish

Atlantic salmon · Salmo salar

Atlantic salmon in the River Allen

Largest measured atlantic salmon: 20.5 cm

The largest atlantic salmon measured in Environment Agency surveys of the River Allen was 20.5 cm, recorded at Downstream Wimborne on 13 June 2007.

Across 733 measured atlantic salmon, the median measured length was 8.4 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 Allen.

See atlantic salmon records across England →

Most recent observation29 July 2025Downstream Fitches Bridge · 37 fish
Largest measured atlantic salmon
20.5 cm
Median length
8.4 cm
Fish measured
733
Survey locations
12

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
20.5 cm13 Jun 2007Downstream Wimborne105792
19 cm9 Aug 2023Downstream Fitches Bridge163912
18.9 cm28 Aug 2019Barnsley Farm155758
18.9 cm3 Oct 2012Downstream Fitches Bridge134066
18.8 cm8 Oct 2014Witchampton Mill143413
18.3 cm8 Oct 2014Witchampton Mill143413
18.3 cm13 Jun 2007Downstream Wimborne105792
18.1 cm9 Aug 2023Downstream Fitches Bridge163912
18 cm13 Aug 2019Downstream Fitches Bridge155091
18 cm14 Aug 2018Downstream Fitches Bridge153045

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
Downstream Fitches Bridge3 Oct 200729 Jul 202511
Downstream Walford Mill Road Bridge30 Jun 202323 Jul 20242
Deans Court30 Jun 202323 Jul 20242
Witchampton Mill8 Oct 201426 Aug 20222
Witchampton Lane Bridge28 Aug 201928 Aug 20191
Upstream Witchampton Lane Bridge28 Aug 201928 Aug 20191
Upstream Hinton Parva28 Aug 201928 Aug 20191
Old Lawn Coppice28 Aug 201928 Aug 20191
Honeybrook Farm28 Aug 201928 Aug 20191
Hinton Parva28 Aug 201928 Aug 20191
Barnsley Farm28 Aug 201928 Aug 20191
Downstream Wimborne18 May 20062 Aug 20184

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

2006–2025

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 733 measured fish were spread across different length ranges.

Smallest
5.2 cm
Lower quarter
7.4 cm
Median
8.4 cm
Upper quarter
9.3 cm
Largest
20.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Allen

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

Brown / sea trout European eel Grayling Dace Pike Gudgeon

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 →