RiverFish

Atlantic salmon · Salmo salar

Atlantic salmon in the Main River Avon Sites

Largest measured atlantic salmon: 16.8 cm

The largest atlantic salmon measured in Environment Agency surveys of the Main River Avon Sites was 16.8 cm, recorded at Upstream Knap Mill (Sp) on 22 August 2011.

Across 999 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 Main River Avon Sites.

See atlantic salmon records across England →

Most recent observation20 June 2024Avonwick Station (Te) · 20 fish
Largest measured atlantic salmon
16.8 cm
Median length
6.7 cm
Fish measured
999
Survey locations
9

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
16.8 cm22 Aug 2011Upstream Knap Mill (Sp)127502
16.3 cm24 Aug 2023Backhill Copse (5min)163311
16.1 cm4 Jul 2016Avonwick Station (Te)148394
15.8 cm24 Aug 2023Backhill Copse (5min)163311
15.7 cm24 Aug 2023Backhill Copse (5min)163311
15.5 cm13 Sept 2022Upstream Hatchbridge (Dip)161575
15.4 cm1 Jul 2019Avonwick Station (Te)154679
15 cm13 Sept 2022Upstream Hatchbridge (Dip)161575
15 cm9 Aug 2022Bickham Bridge (Dip/5 min)161287
15 cm9 Aug 2022Bickham Bridge (Dip/5 min)161287

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
Avonwick Station (Te)12 Aug 199720 Jun 202416
Bickham Bridge (Dip/5 min)20 Aug 19977 Sept 20236
Avonwick Station (5 min)7 Sept 20237 Sept 20231
Downstream South Brent STW (5 min)24 Aug 202324 Aug 20231
Backhill Copse (5min)24 Aug 202324 Aug 20231
Bow Copse (5 min)17 Aug 202317 Aug 20231
Upstream Hatchbridge (Dip)20 Aug 199713 Sept 20226
Upstream Knap Mill (Sp)22 Aug 20119 Aug 20223
Didworthy (Dip)*4 Sept 20064 Sept 20061

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

1997–2024

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 999 measured fish were spread across different length ranges.

Smallest
4 cm
Lower quarter
5.6 cm
Median
6.7 cm
Upper quarter
10.6 cm
Largest
16.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Main River Avon Sites

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

Brown / sea trout Bullhead Stone loach European eel 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 →