Brown / sea trout · Salmo trutta

Brown / sea trout in the River Churn

Largest measured brown / sea trout: 44 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Churn was 44 cm, recorded at River Churn - South Cerney Outdoor Education Centr on 15 October 2005.

Across 1,284 measured brown / sea trout, the median measured length was 16.5 cm.

Surveyors recorded weights for 163 brown / sea trout. The median was 2.1 oz (0.06 kg) and the largest recorded weight was 14.4 oz (0.408 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 Churn.

See brown / sea trout records across England →

Most recent observation29 April 2025South Cerney - behind outdoor education centre · 11 fish

Largest measured brown / sea trout: 44 cm
Median length: 16.5 cm
Fish measured: 1,284
Survey locations: 12

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
44 cm	15 Oct 2005	River Churn - South Cerney Outdoor Education Centr	129919
43.2 cm	10 Oct 2004	River Churn - South Cerney Outdoor Education Centr	83105
41.5 cm	29 Jun 2006	Siddington	99909
41.5 cm	10 May 2004	River Churn - South Cerney Outdoor Education Centr	83104
40.8 cm	16 Apr 2015	River Churn - South Cerney Outdoor Education Centr	144563
40.5 cm	27 Sept 2012	River Churn - Cerney Wick	135136
40 cm	15 Oct 2005	River Churn - Cerney Wick	129920
39.9 cm	10 Oct 2004	River Churn - South Cerney Outdoor Education Centr	83105
39.3 cm	15 Oct 2005	River Churn - South Cerney Outdoor Education Centr	129919
39.2 cm	15 Oct 2005	River Churn - South Cerney Outdoor Education Centr	129919

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
South Cerney - behind outdoor education centre	20 Apr 2017	29 Apr 2025	3
North Cerney	27 Sept 2006	29 Apr 2025	9
River Churn - South Cerney Outdoor Education Centr	6 Nov 2001	16 Apr 2015	8
River Churn - Cerney Wick	9 May 2002	16 Apr 2015	8
Siddington	29 Jun 2006	15 Apr 2015	3
Hammerton (ds N Cerney Site)	14 Apr 2011	1 Apr 2014	2
River Churn - Colesbourne	30 Oct 2001	27 Sept 2012	11
River Churn - Perrot's Brook	25 Oct 2001	21 Sept 2010	7
Marsden Manor - Upstream of Road Bridge	20 Mar 2009	20 Mar 2009	1
Marsden Manor - Small Channel (by-pass)	20 Mar 2009	20 Mar 2009	1
Marsden Manor - Main Channel (Below Weir)	20 Mar 2009	20 Mar 2009	1
River Churn - Upstream Thames Confluence	23 Mar 2004	23 Mar 2004	1

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.

301

702

503

804

405

206

107

008

309

410

211

312

013

214

415

016

217

018

219

020

021

022

123

024

225

Fish measured by surveyors

Measured length distribution

See how the 1,284 measured fish were spread across different length ranges.

Smallest: 4.8 cm
Lower quarter: 11.4 cm
Median: 16.5 cm
Upper quarter: 21 cm
Largest: 44 cm

0–99 mm

195

100–199 mm

688

200–299 mm

359

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 163 brown / sea trout. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0.2 oz (0.007 kg)
Lower quarter: 1 oz (0.028 kg)
Median: 2.1 oz (0.06 kg)
Upper quarter: 4.3 oz (0.121 kg)
Heaviest: 14.4 oz (0.408 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 Churn

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

Bullhead Minnow Pike Roach Perch Chub

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 →