Brown / sea trout · Salmo trutta

Brown / sea trout in the Willow Brook

Largest measured brown / sea trout: 56.5 cm

The largest brown / sea trout measured in Environment Agency surveys of the Willow Brook was 56.5 cm, recorded at Apethorpe on 2 May 1995.

Across 92 measured brown / sea trout, the median measured length was 21.7 cm.

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

See brown / sea trout records across England →

Most recent observation25 October 2018Walcot Lodge DS Site · 4 fish

Largest measured brown / sea trout: 56.5 cm
Median length: 21.7 cm
Fish measured: 92
Survey locations: 5

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
56.5 cm	2 May 1995	Apethorpe	54463
46.8 cm	26 Oct 2011	Woodnewton	128781
43.7 cm	26 May 2018	Walcot Lodge US Site	153800
43.4 cm	27 Oct 2009	Woodnewton	119992
42.5 cm	27 May 2018	Walcot Lodge DS Site	153798
41.4 cm	23 Oct 2018	Fotheringhay	154036
41 cm	27 Oct 2009	Woodnewton	119992
40.1 cm	27 Oct 2009	Woodnewton	119992
38.5 cm	27 Oct 2009	Woodnewton	119992
38.4 cm	27 Oct 2009	Woodnewton	119992

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
Walcot Lodge DS Site	27 May 2018	25 Oct 2018	2
Fotheringhay	23 Oct 2018	23 Oct 2018	1
Walcot Lodge US Site	26 May 2018	26 May 2018	1
Woodnewton	15 Feb 1989	29 May 2015	9
Apethorpe	4 Mar 1992	2 May 1995	2

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

1989–2018

Survey records by year

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

189

090

091

292

093

094

195

096

097

198

099

000

101

002

003

004

005

006

007

008

109

010

111

112

113

014

115

016

017

418

Fish measured by surveyors

Measured length distribution

See how the 92 measured fish were spread across different length ranges.

Smallest: 5.3 cm
Lower quarter: 15.7 cm
Median: 21.7 cm
Upper quarter: 33.5 cm
Largest: 56.5 cm

0–99 mm

100–199 mm

200–299 mm

300–399 mm

400–499 mm

500–599 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Willow Brook

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

Chub Roach Gudgeon Perch Bullhead 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 →