Brown / sea trout · Salmo trutta

Brown / sea trout in the River Cadnam

Largest measured brown / sea trout: 35.6 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Cadnam was 35.6 cm, recorded at Newbridge on 7 September 2001.

Across 91 measured brown / sea trout, the median measured length was 14.7 cm.

Surveyors recorded weights for 3 brown / sea trout. The median was 7 oz (0.199 kg) and the largest recorded weight was 14.8 oz (0.419 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 Cadnam.

See brown / sea trout records across England →

Most recent observation17 September 2025Wittensford Bridge · 1 fish

Largest measured brown / sea trout: 35.6 cm
Median length: 14.7 cm
Fish measured: 91
Survey locations: 2

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
35.6 cm	7 Sept 2001	Newbridge	73523
30.6 cm	25 Jul 2012	Wittensford Bridge	132517
30.5 cm	13 Jul 2018	Wittensford Bridge	152937
28.8 cm	13 Jul 2018	Wittensford Bridge	152937
28.5 cm	27 Sept 2021	Newbridge	160355
28 cm	15 Sept 2020	Newbridge	156397
28 cm	13 Jul 2018	Wittensford Bridge	152937
27 cm	15 Sept 2022	Newbridge	161535
26.8 cm	7 Sept 2001	Newbridge	73523
25.8 cm	14 May 2013	Newbridge	135989

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
Wittensford Bridge	25 Jul 2012	17 Sept 2025	6
Newbridge	7 Sept 2001	17 Sept 2025	10

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.

101

002

003

004

005

006

007

108

009

010

011

112

113

014

015

016

017

218

019

220

221

122

123

224

225

Fish measured by surveyors

Measured length distribution

See how the 91 measured fish were spread across different length ranges.

Smallest: 4.6 cm
Lower quarter: 6.5 cm
Median: 14.7 cm
Upper quarter: 21.8 cm
Largest: 35.6 cm

0–99 mm

100–199 mm

200–299 mm

300–399 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 3 brown / sea trout. This is a subset of the measured fish and may not represent the whole population.

Lightest: 5.5 oz (0.157 kg)
Lower quarter: 6.3 oz (0.178 kg)
Median: 7 oz (0.199 kg)
Upper quarter: 10.9 oz (0.309 kg)
Heaviest: 14.8 oz (0.419 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 Cadnam

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

Bullhead Minnow Stone loach Brook lamprey Roach 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 →