Brown / sea trout · Salmo trutta

Brown / sea trout in the Cholwell Brook

Largest measured brown / sea trout: 28 cm

The largest brown / sea trout measured in Environment Agency surveys of the Cholwell Brook was 28 cm, recorded at Power Station on 21 June 2019.

Across 442 measured brown / sea trout, the median measured length was 11.5 cm.

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

See brown / sea trout records across England →

Most recent observation15 July 2025Power Station · 15 fish

Largest measured brown / sea trout: 28 cm
Median length: 11.5 cm
Fish measured: 442
Survey locations: 3

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
28 cm	21 Jun 2019	Power Station	155121
24.3 cm	21 Jun 2019	Power Station	155121
23.8 cm	21 Jun 2019	Power Station	155121
23.3 cm	21 Jun 2019	Power Station	155121
23.1 cm	16 Jul 2002	Cholwell	72509
23 cm	10 Jul 2003	Power Station	76581
21.6 cm	3 Jul 2013	Power Station	136930
21.5 cm	12 Jul 2006	Power Station	100236
21.5 cm	10 Jul 2002	Power Station	72510
21.3 cm	4 Jul 2005	Power Station	85510

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
Power Station	15 Sept 1983	15 Jul 2025	14
Cholwell	15 Sept 1983	16 Jul 2002	3
Mary Tavy	15 Sept 1983	1 Jul 1998	2

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

1983–2025

Survey records by year

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

383

084

085

086

087

088

089

090

091

092

093

094

095

096

097

398

199

100

001

202

103

104

105

106

107

108

009

010

011

012

113

014

015

016

017

018

119

020

021

022

023

024

125

Fish measured by surveyors

Measured length distribution

See how the 442 measured fish were spread across different length ranges.

Smallest: 3.8 cm
Lower quarter: 6 cm
Median: 11.5 cm
Upper quarter: 13.4 cm
Largest: 28 cm

0–99 mm

157

100–199 mm

271

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Cholwell Brook

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

European eel Atlantic salmon

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 →