Brown / sea trout · Salmo trutta

Brown / sea trout in the Bentley Brook

Largest measured brown / sea trout: 41.7 cm

The largest brown / sea trout measured in Environment Agency surveys of the Bentley Brook was 41.7 cm, recorded at Downstream Ashbourne Stw on 18 October 2006.

Across 309 measured brown / sea trout, the median measured length was 18.7 cm.

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

See brown / sea trout records across England →

Most recent observation25 August 2015Woodside · 92 fish

Largest measured brown / sea trout: 41.7 cm
Median length: 18.7 cm
Fish measured: 309
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
41.7 cm	18 Oct 2006	Downstream Ashbourne Stw	102153
38.8 cm	25 Aug 2015	Woodside	146979
38.7 cm	18 Oct 2006	Downstream Ashbourne Stw	102153
37 cm	18 Oct 2006	Downstream Ashbourne Stw	102153
36.9 cm	22 Aug 2013	Mapleton Bridge	139418
36.3 cm	8 Jul 1997	Downstream Ashbourne Stw	5208
35.5 cm	18 Oct 2006	Downstream Ashbourne Stw	102153
35.2 cm	18 Oct 2006	Downstream Ashbourne Stw	102153
35.1 cm	22 Aug 2013	Mapleton Bridge	139418
34.8 cm	18 Oct 2006	Downstream Ashbourne Stw	102153

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
Woodside	25 Aug 2015	25 Aug 2015	1
Downstream Horsley Farm	25 Aug 2015	25 Aug 2015	1
Mapleton Bridge	22 Aug 2013	22 Aug 2013	1
Upstream Ashbourne Stw	8 Jul 1997	18 Oct 2006	2
Downstream Ashbourne Stw	8 Jul 1997	18 Oct 2006	2

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

1997–2015

Survey records by year

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

297

098

099

000

001

002

003

004

005

206

007

008

009

010

011

012

113

014

215

Fish measured by surveyors

Measured length distribution

See how the 309 measured fish were spread across different length ranges.

Smallest: 5.6 cm
Lower quarter: 9.4 cm
Median: 18.7 cm
Upper quarter: 24.5 cm
Largest: 41.7 cm

0–99 mm

100–199 mm

200–299 mm

300–399 mm

400–499 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Bentley Brook

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

Grayling 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 →