RiverFish

Atlantic salmon · Salmo salar

Atlantic salmon in the Main River Tone

Largest measured atlantic salmon: 24.6 cm

The largest atlantic salmon measured in Environment Agency surveys of the Main River Tone was 24.6 cm, recorded at Bathpool on 28 July 2011.

Across 284 measured atlantic salmon, the median measured length was 11.3 cm.

Surveyors recorded weights for 55 atlantic salmon. The median was 0.5 oz (0.014 kg) and the largest recorded weight was 3.1 oz (0.088 kg).

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the Main River Tone.

See atlantic salmon records across England →

Most recent observation30 September 2025Roughmoor (Te) · 2 fish
Largest measured atlantic salmon
24.6 cm
Median length
11.3 cm
Fish measured
284
Survey locations
13

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
24.6 cm28 Jul 2011Bathpool127255
20.7 cm27 Jul 2010Roughmoor (Te)123168
20 cm7 Sept 2017Bathpool151505
19.2 cm3 Aug 2004Roughmoor (Te)80797
19 cm22 May 2008Ash Farm (Salmon Project)111455
18.6 cm7 Sept 2017Bathpool151505
18.2 cm7 Sept 2017Bathpool151505
18 cm5 Sept 2019Bathpool155278
17.8 cm5 Sept 2019Bathpool155278
17.8 cm28 Jul 2011Bathpool127255

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
Roughmoor (Te)3 Aug 200430 Sept 20256
Bathpool12 Sept 20065 Sept 20199
Bradford on Tone18 Jun 201418 Jun 20141
Upstream Tracebridge11 Jun 201411 Jun 20141
Harpford Bridge8 May 20083 Jun 20142
Greenham (Se-03)3 Jun 20143 Jun 20141
Waterrow8 May 20148 May 20141
Ash Farm (Salmon Project)1 Jun 200627 May 20104
Priorswood (Te)11 Sept 20037 Oct 20096
Hornshay Farm at Nynehead (Se-03)9 Sept 19947 Jun 20072
Newbridge26 Apr 200726 Apr 20071
Downstream Nynehead Weir (Salmon Project)1 Jun 20061 Jun 20061
Parsonage Farm (Te)22 Sept 200322 Sept 20031

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

1994–2025

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 284 measured fish were spread across different length ranges.

Smallest
2.9 cm
Lower quarter
9.1 cm
Median
11.3 cm
Upper quarter
14.4 cm
Largest
24.6 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 55 atlantic salmon. This is a subset of the measured fish and may not represent the whole population.

Lightest
0.2 oz (0.005 kg)
Lower quarter
0.3 oz (0.0095 kg)
Median
0.5 oz (0.014 kg)
Upper quarter
1.1 oz (0.031 kg)
Heaviest
3.1 oz (0.088 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the Main River Tone

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

Brown / sea trout Bullhead European eel Stone loach Minnow 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 →