RiverFish

Atlantic salmon · Salmo salar

Atlantic salmon in the River Itchen

Largest measured atlantic salmon: 56 cm

The largest atlantic salmon measured in Environment Agency surveys of the River Itchen was 56 cm, recorded at Bishopstoke Barge on 2 September 2022.

Across 7,712 measured atlantic salmon, the median measured length was 8.7 cm.

Surveyors recorded weights for 2,118 atlantic salmon. The median was 0.4 oz (0.01 kg) and the largest recorded weight was 2 lb 11 oz (1.22 kg).

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

See atlantic salmon records across England →

Most recent observation5 September 2025Brambridge main "Kanara" · 1 fish
Largest measured atlantic salmon
56 cm
Median length
8.7 cm
Fish measured
7,712
Survey locations
32

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
56 cm2 Sept 2022Bishopstoke Barge161453
25 cm5 Sept 2002Bishopstoke Lock55065
24.4 cm6 Oct 2004Railway82693
24 cm24 Aug 2022Shawford Park161373
22.6 cm6 Oct 2004Railway82693
22 cm15 Sept 2011Fulling Mill, Abbott's Worthy127943
22 cm8 Aug 2011Bishopstoke Barge127478
21.9 cm15 Aug 2002BR Lock55063
21.6 cm12 Aug 2009Fulling Mill, Abbott's Worthy120351
21.5 cm5 Sept 2002River Inn55084

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
St Cross Mill "eel trap run"5 Sept 20255 Sept 20251
St Cross Mill7 Sept 20235 Sept 20252
St Cross Bridge15 Sept 20155 Sept 20255
Brambridge main "Kanara"6 Sept 20235 Sept 20254
Wolvesey Lodge20 Aug 20024 Sept 20258
Hockley Mill14 Sept 20094 Sept 20259
Swimming Pool, Winchester2 Sept 20023 Sept 202512
Shipley Bridge, Otterbourne11 Sept 20183 Sept 20256
Shawford, upstream of Norris's Bridge13 Sept 20183 Sept 20258
Lower Bishopstoke Fishery10 Sept 20183 Sept 20257
Caravan Pool, Highbridge24 Aug 20093 Sept 202510
Brambridge19 Oct 20093 Sept 20258
Toby Carvery Bishopstoke10 Sept 20182 Sept 20258
Lower Itchen Fishery - d/s viaduct28 Aug 20091 Sept 202510
Lower Itchen Fishery - Hut Run7 Sept 20231 Sept 20253
Bishopstoke Barge31 Aug 200429 Aug 202513
Shawford Park6 Oct 200828 Aug 202511
Fulling Mill, Abbott's Worthy12 Aug 200917 Aug 20213
Woodmill16 Sept 201916 Sept 20191
Mansbridge10 Sept 201810 Sept 20181
Twyford Lodge18 Oct 201118 Oct 20111
Segar's Farm28 Oct 200928 Oct 20091
Bishopstoke Lock5 Sept 20024 Sept 20095
Fallodon Stream17 Aug 200917 Aug 20091
Railway25 Sept 200231 Aug 20054
Shawford, downtream of Norris's Bridge24 Sept 200224 Sept 20021
College, Winchester16 Sept 200216 Sept 20021
River Inn5 Sept 20025 Sept 20021
Blackbridge2 Sept 20022 Sept 20021
BR Lock15 Aug 200215 Aug 20021
Rickety19 Sept 200114 Aug 20022
Coneger Lock14 Aug 200214 Aug 20021

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

2001–2025

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 7,712 measured fish were spread across different length ranges.

Smallest
0.9 cm
Lower quarter
7.6 cm
Median
8.7 cm
Upper quarter
10 cm
Largest
56 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 2,118 atlantic salmon. This is a subset of the measured fish and may not represent the whole population.

Lightest
0.1 oz (0.002 kg)
Lower quarter
0.2 oz (0.007 kg)
Median
0.4 oz (0.01 kg)
Upper quarter
0.5 oz (0.015 kg)
Heaviest
2 lb 11 oz (1.22 kg)

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

More fish in this river

Explore the River Itchen

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

Brown / sea trout Bullhead Minnow European eel Grayling Brook lamprey

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 →