RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the Main Avon Sites

Largest measured brown / sea trout: 64.5 cm

The largest brown / sea trout measured in Environment Agency surveys of the Main Avon Sites was 64.5 cm, recorded at Ham Carrier on 30 August 2023.

Across 4,716 measured brown / sea trout, the median measured length was 17.6 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 Avon Sites.

See brown / sea trout records across England →

Most recent observation14 October 2025Avon Bridge · 63 fish
Largest measured brown / sea trout
64.5 cm
Median length
17.6 cm
Fish measured
4,716
Survey locations
45

Individual EA measurements

Largest measured brown / sea trout

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
64.5 cm30 Aug 2023Ham Carrier164466
57.2 cm24 Sept 2025Ham Carrier179053
54.5 cm5 Oct 2010Ham Carrier124303
52.8 cm30 Aug 2023Ham Carrier164466
52.7 cm30 Aug 2023Ham Carrier164466
52.5 cm24 Sept 2025Ham Carrier179053
52.5 cm11 Sept 2013Avon Bridge138745
50.4 cm24 Sept 2025Ham Carrier179053
50.3 cm2 Sept 2015Ham Carrier146252
49.9 cm22 Apr 2008A2R Downton-Breamore110818

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where brown / sea trout were found

Each point marks a survey location with at least one brown / sea trout 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 brown / sea trout
Avon Bridge5 Sept 200114 Oct 202522
Netheravon7 Aug 201929 Sept 20256
Fifield Downstream Tank Crossing7 Aug 201929 Sept 20255
Downstream Figheldean Bridge CPUE7 Aug 201929 Sept 20256
Amesbury Abbey Weir19 Aug 200429 Sept 20259
d/s Standlynch Mill Pool16 Sept 200425 Sept 20254
Woodgreen- The Shallows8 Aug 201925 Sept 20254
Upavon Downstream Road Bridge7 Aug 201925 Sept 20256
Salisbury Wetherspoons CPUE8 Aug 201925 Sept 20256
Ham Carrier5 Sept 200124 Sept 202515
d/s bottom weir at Bickton11 Aug 200414 Aug 20245
London Anglers Salisbury6 Sept 202214 Aug 20242
Bugmoor Hatches12 Sept 200814 Aug 20246
Stratford -Sub-Castle7 Oct 200413 Aug 20248
Middle Woodford Mill7 Oct 200413 Aug 20249
Little Durnford Hatches7 Oct 200413 Aug 20249
Lake Pump House Spawning Channel7 Aug 201913 Aug 20244
Heale House at Netton16 Oct 201213 Aug 20246
Ibsley8 Aug 20248 Aug 20241
Downstream Figheldean Bridge4 Oct 201225 Aug 20235
Amesbury tank crossing4 Oct 201225 Aug 20234
Fordingbridge Rec18 Aug 202115 Aug 20233
Downton8 Aug 20196 Sept 20223
River Avon at Maltings Car Park14 Oct 202114 Oct 20211
Navigation11 Sept 200119 Aug 20215
Ringwood Downstream A319 Aug 20199 Aug 20191
Amesbury d/s Queensbury Bridge5 Oct 20123 Sept 20142
Salisbury Wetherspoons12 Sept 201219 Aug 20142
Cuttenham Farm12 Aug 200419 Sept 20133
d/s Salterton Bridge16 Oct 201216 Oct 20121
Normanton16 Oct 201216 Oct 20121
Green Cottage (Piscatorials)16 Oct 201216 Oct 20121
Great Durnford16 Oct 201216 Oct 20121
Amesbury Abbey22 Apr 200416 Oct 20122
Newcourt Carrier at Downton10 Sept 200124 Oct 20112
A4R Ibsley to Ringwood25 May 20049 May 20115
A1RA Bemerton Farm - EA Boom site4 May 20114 May 20111
A1R Salisbury to Kitts Island3 Jun 20048 May 20084
A2R Downton-Breamore14 Jun 200422 Apr 20084
A3R Burgate to East Mills1 Jun 200414 Apr 20052
New Riffle at Charford19 Oct 200419 Oct 20041
Burgate Manor Farm19 Oct 200419 Oct 20041
d/s Breamore Mill Race8 Oct 20048 Oct 20041
Ibsley Hatch Pool11 Aug 200411 Aug 20041
Hatchpool at Great Weir10 Aug 200410 Aug 20041

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 brown / sea trout that year.

Fish measured by surveyors

Measured length distribution

See how the 4,716 measured fish were spread across different length ranges.

Smallest
3.8 cm
Lower quarter
10.4 cm
Median
17.6 cm
Upper quarter
23.8 cm
Largest
64.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Main Avon Sites

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

Bullhead Minnow Stone loach Atlantic salmon European eel Chub

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 →