Brown / sea trout · Salmo trutta

Brown / sea trout in the Back Stream

Largest measured brown / sea trout: 30.7 cm

The largest brown / sea trout measured in Environment Agency surveys of the Back Stream was 30.7 cm, recorded at The Lawns on 31 July 1997.

Across 325 measured brown / sea trout, the median measured length was 17 cm.

Surveyors recorded weights for 271 brown / sea trout. The median was 2.1 oz (0.06 kg) and the largest recorded weight was 12.3 oz (0.35 kg).

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

See brown / sea trout records across England →

Most recent observation29 May 2014Fitzroy (Se-03) · 52 fish

Largest measured brown / sea trout: 30.7 cm
Median length: 17 cm
Fish measured: 325
Survey locations: 6

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
30.7 cm	31 Jul 1997	The Lawns	79536
28.5 cm	25 Jul 1997	Hither Mead	79537
28.2 cm	4 Sept 1997	Staplegrove Mills	79538
28.2 cm	29 Jul 1997	Fitzroy (Se-03)	76689
28.1 cm	29 May 2014	Fitzroy (Se-03)	140929
27.9 cm	10 May 2007	Fitzroy (Se-03)	105291
27.5 cm	29 Jul 1997	Fitzroy (Se-03)	76689
27.4 cm	29 May 2014	Fitzroy (Se-03)	140929
27.3 cm	4 Sept 1997	Staplegrove Mills	79538
27.2 cm	25 Jul 1997	Hither Mead	79537

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
Fitzroy (Se-03)	29 Jul 1997	29 May 2014	4
Lydeard Down	11 Sept 1997	11 Sept 1997	1
Combe Florey Mill	11 Sept 1997	11 Sept 1997	1
Staplegrove Mills	4 Sept 1997	4 Sept 1997	1
The Lawns	31 Jul 1997	31 Jul 1997	1
Hither Mead	25 Jul 1997	25 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.

1997–2014

Survey records by year

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

697

098

099

000

001

002

103

004

005

006

107

008

009

010

011

012

013

114

Fish measured by surveyors

Measured length distribution

See how the 325 measured fish were spread across different length ranges.

Smallest: 3.9 cm
Lower quarter: 14.4 cm
Median: 17 cm
Upper quarter: 21.5 cm
Largest: 30.7 cm

0–99 mm

100–199 mm

158

200–299 mm

109

300–399 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 271 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: 1.3 oz (0.0365 kg)
Median: 2.1 oz (0.06 kg)
Upper quarter: 4.3 oz (0.1225 kg)
Heaviest: 12.3 oz (0.35 kg)

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

More fish in this river

Explore the Back Stream

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

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 →