Brown / sea trout · Salmo trutta

Brown / sea trout in the Main Semington Brook

Largest measured brown / sea trout: 47 cm

The largest brown / sea trout measured in Environment Agency surveys of the Main Semington Brook was 47 cm, recorded at West Lavington (Se-01) on 13 May 1997.

Across 170 measured brown / sea trout, the median measured length was 19 cm.

Surveyors recorded weights for 141 brown / sea trout. The median was 2.9 oz (0.081 kg) and the largest recorded weight was 2 lb 5.4 oz (1.06 kg).

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

See brown / sea trout records across England →

Most recent observation2 August 2012Mill Farm Bulkington · 18 fish

Largest measured brown / sea trout: 47 cm
Median length: 19 cm
Fish measured: 170
Survey locations: 8

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.

Length	Survey date	Survey location	Survey ID
47 cm	13 May 1997	West Lavington (Se-01)	77204
44.4 cm	10 Jul 1997	Worton	77208
40.5 cm	14 May 1997	Hurst Farm	77207
39.8 cm	29 Sept 2004	Pantry Bridge (Te)	82687
39 cm	14 May 1997	Hurst Farm	77207
38.6 cm	13 May 1997	West Lavington (Se-01)	77204
38.5 cm	19 Jul 2001	West Lavington (Se-01)	20260
37.8 cm	19 Jul 2001	West Lavington (Se-01)	20260
37.2 cm	2 Aug 2012	Baldham Farm	132598
36 cm	13 May 1997	West Lavington (Se-01)	77204

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 surveyed	First recorded	Last recorded	Visits finding brown / sea trout
Mill Farm Bulkington	2 Aug 2012	2 Aug 2012	1
Baldham Farm	2 Aug 2012	2 Aug 2012	1
Great Cheverell Mill	1 Aug 2012	1 Aug 2012	1
Pantry Bridge (Te)	29 Sept 2004	23 Aug 2005	2
Hurst Farm	14 May 1997	6 Sept 2001	2
Norney Bridge	2 Aug 2001	2 Aug 2001	1
West Lavington (Se-01)	13 May 1997	19 Jul 2001	2
Worton	10 Jul 1997	10 Jul 1997	1

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

1997–2012

Survey records by year

Each bar shows how many survey visits recorded brown / sea trout that year.

397

098

099

000

301

002

003

104

105

006

007

008

009

010

011

312

Fish measured by surveyors

Measured length distribution

See how the 170 measured fish were spread across different length ranges.

Smallest: 5.1 cm
Lower quarter: 13.7 cm
Median: 19 cm
Upper quarter: 24.4 cm
Largest: 47 cm

0–99 mm

100–199 mm

200–299 mm

300–399 mm

400–499 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 141 brown / sea trout. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0.1 oz (0.002 kg)
Lower quarter: 1.2 oz (0.035 kg)
Median: 2.9 oz (0.081 kg)
Upper quarter: 6.5 oz (0.184 kg)
Heaviest: 2 lb 5.4 oz (1.06 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the Main Semington Brook

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

Roach Gudgeon Stone loach Dace Minnow 3-spined stickleback

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 →