RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the River Main Lyd

Largest measured brown / sea trout: 50.5 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Main Lyd was 50.5 cm, recorded at Sydenham on 8 July 2005.

Across 2,972 measured brown / sea trout, the median measured length was 10.8 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 Main Lyd.

See brown / sea trout records across England →

Most recent observation8 September 2025Lifton Playing Field · 9 fish
Largest measured brown / sea trout
50.5 cm
Median length
10.8 cm
Fish measured
2,972
Survey locations
19

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
50.5 cm8 Jul 2005Sydenham87087
49.5 cm3 Sept 2013Lifton Park138396
47.8 cm19 Jun 2014Sydenham141295
46.9 cm23 Jul 1999Sydenham105151
42.8 cm7 Sept 2006Colemans Farm101295
42.2 cm18 Aug 2003Sydenham77335
40 cm5 Aug 2015Greenlanes145749
39.9 cm8 Jul 2005Sydenham87087
39.1 cm18 Aug 2003Sydenham77335
38.4 cm6 Jul 2004Sydenham81505

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
Lifton Playing Field9 Jul 19928 Sept 202526
Lydford Gorge20 Aug 198422 Aug 202530
Greenlanes13 Aug 198411 Aug 202531
Spry Farm15 Aug 19846 Aug 202533
u/s Gatherley26 Aug 19937 Jul 202523
Sydenham14 Aug 198427 Jun 202534
Downstream Greenlanes8 Aug 20238 Aug 20231
Downstream Coryton Mill31 Jul 202331 Jul 20231
Warren Wood21 Jul 202321 Jul 20231
Upstream Sydenham20 Jun 202320 Jun 20231
Coryton Bridge16 Aug 19843 Aug 20218
Lifton Park19 Jun 19963 Sept 201314
Lyd Confluence9 Aug 199411 Aug 20106
Colemans Farm3 Oct 200524 Sept 20083
d/s Kit Steps28 Jul 199921 Jul 20066
Ambrosia Bridge5 Sept 20055 Sept 20051
Langham10 Aug 198421 Sept 20015
Sydenham lower gravel retention7 Jul 199527 Jun 19962
Sydenham upper gravel retention10 Jul 199524 Jun 19962

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

1984–2025

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 2,972 measured fish were spread across different length ranges.

Smallest
3.7 cm
Lower quarter
6.6 cm
Median
10.9 cm
Upper quarter
16.2 cm
Largest
50.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Main Lyd

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

Atlantic salmon Bullhead European eel Stone loach Brook lamprey 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 →