RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the River Wylye

Largest measured brown / sea trout: 44.2 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Wylye was 44.2 cm, recorded at 7 Hatches on 29 September 2011.

Across 3,922 measured brown / sea trout, the median measured length was 18.8 cm.

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

See brown / sea trout records across England →

Most recent observation10 September 2025Butchers Stream at Wilton · 148 fish
Largest measured brown / sea trout
44.2 cm
Median length
18.8 cm
Fish measured
3,922
Survey locations
24

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
44.2 cm29 Sept 20117 Hatches128857
41.5 cm15 Oct 2012Bathampton House134329
41 cm26 Sept 2007Butchers Stream at Wilton108159
40 cm13 Oct 2011Wylye Fly Fisheres - u/s access bridge128833
39.4 cm2 Oct 2014Upstream South Newton Mill143513
38.6 cm19 Sept 2017Langford Lakes d/s weir pool151784
38.3 cm6 Aug 2019Butchers Stream at Wilton155076
38.1 cm14 Sept 2004Longbridge Deverill82142
37.7 cm11 Oct 2011Langford Lakes US weir pool128545
37.7 cm25 Oct 2007Langford Lakes d/s weir pool108259

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
Butchers Stream at Wilton7 Sept 200110 Sept 202519
Langford Lakes d/s weir pool14 Sept 200619 Sept 20199
Wylye Fly Fishers - Cottage Beat12 Oct 201026 Sept 20175
Wylye Fly Fishers (Beat A)26 Sept 201726 Sept 20171
Upstream South Newton Mill2 Oct 20142 Oct 20141
d/s Gunsville31 Aug 20044 Sept 20144
Manor Farm Bridge31 Aug 20044 Sept 20143
Mount Mill Upstream of Weir10 Jul 201410 Jul 20141
Mount Mill Downstream of Weir10 Jul 201410 Jul 20141
Wylye Fly Fishers - Downstream Cottage Beat (control)11 Oct 201311 Oct 20131
Upstream Pet fish19 Oct 201219 Oct 20121
Downstream Image Bridge19 Oct 201219 Oct 20121
Wylye House Weir15 Oct 201215 Oct 20121
Upstream South Newton15 Oct 201215 Oct 20121
Steeple langford d/s mill15 Oct 201215 Oct 20121
Stapleford15 Oct 201215 Oct 20121
Chilhampton Farm12 Oct 200415 Oct 20122
Bathampton House15 Oct 201215 Oct 20121
South Newton10 Oct 200827 Sept 20122
Wylye Fly Fisheres - u/s access bridge12 Oct 201013 Oct 20112
Langford Lakes US weir pool14 Sept 200611 Oct 20113
7 Hatches29 Sept 201129 Sept 20111
Norton Bavant14 Sept 200414 Sept 20113
Longbridge Deverill14 Sept 200414 Sept 20112

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 3,922 measured fish were spread across different length ranges.

Smallest
3.2 cm
Lower quarter
11.4 cm
Median
18.8 cm
Upper quarter
23.5 cm
Largest
44.2 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Wylye

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

Bullhead Atlantic salmon Grayling Minnow Stone loach European eel

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 →