RiverFish

Atlantic salmon · Salmo salar

Atlantic salmon in the Main River Mole

Largest measured atlantic salmon: 63.5 cm

The largest atlantic salmon measured in Environment Agency surveys of the Main River Mole was 63.5 cm, recorded at Bicknor Top Site (5 min) on 19 October 2007.

Across 1,565 measured atlantic salmon, the median measured length was 7.2 cm.

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 Mole.

See atlantic salmon records across England →

Most recent observation19 August 2025Mole Bride (Dip) · 17 fish
Largest measured atlantic salmon
63.5 cm
Median length
7.2 cm
Fish measured
1,565
Survey locations
20

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
63.5 cm19 Oct 2007Bicknor Top Site (5 min)108773
19.3 cm2 Sept 2009Coppice Field (Sp)*118786
18.8 cm19 May 2022Parkhouse*161071
16.9 cm24 Jul 2023North Heasley Mine (5 min)163836
15.7 cm18 Aug 2025South Wood (Sp)178099
15.6 cm18 Sept 2023North Molton (5 min)163839
15.5 cm18 Sept 2023North Molton (5 min)163839
15.1 cm9 Jul 2014North Heasley Mine (Te)141636
15 cm18 Sept 2023South Wood (5 min)163838
15 cm24 May 2023Little Hele Wood (Dip)*162693

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
Mole Bride (Dip)2 Sept 199619 Aug 20256
Wampford Bridge (Dip)3 Sept 199618 Aug 20255
South Wood (Sp)13 Aug 199618 Aug 20256
Heasley Mill (Sp)12 Aug 199613 Aug 20255
South Molton Rugby Ground (Sp)5 Aug 20255 Aug 20251
North Heasley Mine (Te)12 Aug 199610 Jul 202517
South Wood (5 min)18 Sept 202318 Sept 20231
North Molton (5 min)13 Aug 199618 Sept 20236
Bicknor Top Site (5 min)19 Oct 200718 Sept 20232
North Heasley Mine (5 min)24 Jul 202324 Jul 20231
Upstream Riverside Caravan Park1 Aug 201924 May 20234
Parkhouse*13 Aug 199624 May 20237
Little Hele Wood (Dip)*3 Sept 199624 May 20236
Head Bridge (Dip)3 Sept 199627 Sept 20184
Higher Water Town (Dip)*3 Sept 199611 Sept 20122
South Molton (Dip)*3 Sept 19967 Sept 20123
Coppice Field (Sp)*7 Sept 20062 Sept 20094
Bicknor Bridge - coppice (Dip)*19 Oct 200719 Oct 20071
Alswear (Dip)*21 Aug 199630 Aug 20053
Lenton (Dip)*3 Sept 19963 Sept 19961

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

1996–2025

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 1,565 measured fish were spread across different length ranges.

Smallest
3.3 cm
Lower quarter
6 cm
Median
7.2 cm
Upper quarter
10.3 cm
Largest
63.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Main River Mole

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

Brown / sea trout Bullhead European eel Stone loach Minnow

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 →