RiverFish

Atlantic salmon · Salmo salar

Atlantic salmon in the River Main Plym

Largest measured atlantic salmon: 17.2 cm

The largest atlantic salmon measured in Environment Agency surveys of the River Main Plym was 17.2 cm, recorded at Ham on 13 July 2023.

Across 1,277 measured atlantic salmon, the median measured length was 6.7 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 Main Plym.

See atlantic salmon records across England →

Most recent observation7 August 2025Ham · 32 fish
Largest measured atlantic salmon
17.2 cm
Median length
6.7 cm
Fish measured
1,277
Survey locations
11

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
17.2 cm13 Jul 2023Ham162821
16.1 cm7 Aug 2025Ham179035
15.6 cm1 Aug 2019Ham155401
15.4 cm28 Jun 2023Colwill Wood163931
15.3 cm21 Jul 2023Carne Wood163928
15.1 cm7 Aug 2025Ham179035
14.7 cm23 Jun 2025u/s Cadover177035
14.7 cm28 Jul 2011Ham127616
14.4 cm7 Aug 2025Ham179035
14.2 cm28 Jun 2023Great Shaugh Wood163929

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
Ham23 Jan 19827 Aug 202519
Great Shaugh Wood7 Jul 19824 Jul 20259
u/s Cadover3 Jul 200623 Jun 20255
Plym Bridge29 Jul 198220 Jun 20259
Carne Wood21 Jul 202321 Jul 20231
Lower Cadover17 Jul 202317 Jul 20231
Upstream Ham13 Jul 202313 Jul 20231
Colwill Wood28 Jun 202328 Jun 20231
Brisworthy2 Jul 20192 Jul 20191
Lower Cadworthy6 Jul 20066 Jul 20061
Bickleigh30 Jun 200630 Jun 20061

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

1982–2025

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 1,277 measured fish were spread across different length ranges.

Smallest
1.1 cm
Lower quarter
5.3 cm
Median
6.7 cm
Upper quarter
10.6 cm
Largest
17.2 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Main Plym

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

European eel Brown / sea trout Bullhead Minnow Flounder

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 →