RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the River Main Warleggan

Largest measured brown / sea trout: 47.5 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Main Warleggan was 47.5 cm, recorded at Panters Bridge on 5 October 1979.

Across 5,898 measured brown / sea trout, the median measured length was 9.8 cm.

Surveyors recorded weights for 8 brown / sea trout. The median was 14.1 oz (0.4 kg) and the largest recorded weight was 1 lb 10.5 oz (0.75 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 Main Warleggan.

See brown / sea trout records across England →

Most recent observation2 September 2025Carne Wood · 64 fish
Largest measured brown / sea trout
47.5 cm
Median length
9.8 cm
Fish measured
5,898
Survey locations
9

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
47.5 cm5 Oct 1979Panters Bridge135520
46.3 cm9 Aug 1977Panters Bridge118489
45.5 cm18 Sept 2002Warleggan Gauging Station72839
44.6 cm13 Jul 2018West Wood153136
44.2 cm9 Aug 1996Warleggan Gauging Station104310
43.9 cm10 Aug 1994West Wood104653
43.8 cm5 Oct 1979Panters Bridge135520
43.5 cm18 Sept 2002Warleggan Gauging Station72839
43.3 cm3 Aug 1994Panters Bridge104473
43.1 cm4 Aug 1994Warleggan Gauging Station104475

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
Carne Wood29 Jul 19942 Sept 202529
Temple4 Aug 199425 Sept 202413
West Wood10 Aug 197723 Jul 202420
u/s Maidenwell27 Jul 199426 Jul 201211
Panters Bridge9 Aug 19778 Sept 201118
Tank Bridge31 Oct 200631 Oct 20061
Wooda Bridge2 Aug 199428 Sept 20049
Warleggan Gauging Station4 Aug 19947 Sept 20049
Hawkstor20 Sept 199920 Sept 19991

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

1977–2025

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 5,898 measured fish were spread across different length ranges.

Smallest
3.2 cm
Lower quarter
6.4 cm
Median
9.8 cm
Upper quarter
13 cm
Largest
47.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 8 brown / sea trout. This is a subset of the measured fish and may not represent the whole population.

Lightest
14.1 oz (0.4 kg)
Lower quarter
14.1 oz (0.4 kg)
Median
14.1 oz (0.4 kg)
Upper quarter
1 lb 7.4 oz (0.6625 kg)
Heaviest
1 lb 10.5 oz (0.75 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 Main Warleggan

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

Atlantic salmon European eel Bullhead

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 →