Brown / sea trout · Salmo trutta

Brown / sea trout in the Black Brook

Largest measured brown / sea trout: 53 cm

The largest brown / sea trout measured in Environment Agency surveys of the Black Brook was 53 cm, recorded at Gybl05 on 17 June 2015.

Across 1,061 measured brown / sea trout, the median measured length was 14.3 cm.

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

See brown / sea trout records across England →

Most recent observation12 June 2025Gybl02 · 17 fish

Largest measured brown / sea trout: 53 cm
Median length: 14.3 cm
Fish measured: 1,061
Survey locations: 9

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
53 cm	17 Jun 2015	Gybl05	145359
46.3 cm	22 Sept 2008	Gybl04	115360
38.5 cm	28 Jul 2009	Gybl04	118111
38.4 cm	22 Sept 2008	Gybl04	115360
35.6 cm	28 Jul 2009	Gybl04	118111
35.5 cm	22 Sept 2008	Gybl04	115360
34.9 cm	22 Sept 2008	Gybl04	115360
34.6 cm	3 Dec 1998	Bb05	60803
34.5 cm	28 Jul 2008	Gybl05	114377
34.1 cm	31 Jul 2007	Gybl05	108467

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
Gybl02	31 Jul 2007	12 Jun 2025	4
Gybl01	10 Aug 2007	11 Jun 2025	4
Gybl05	31 Jul 2007	5 Jun 2024	12
Gybl04	10 Aug 2007	4 Jun 2024	11
Bb05	3 Dec 1998	3 Dec 1998	1
Bb04	6 Jun 1994	3 Dec 1998	2
Bb03	6 Jun 1994	3 Dec 1998	2
Bb02	6 Jun 1994	3 Dec 1998	2
Bb01	6 Jun 1994	27 Aug 1998	2

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

1994–2025

Survey records by year

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

494

095

096

097

598

099

000

001

002

003

004

005

006

407

208

209

210

211

012

313

214

215

216

017

218

219

020

021

222

023

224

225

Fish measured by surveyors

Measured length distribution

See how the 1,061 measured fish were spread across different length ranges.

Smallest: 3.8 cm
Lower quarter: 8.7 cm
Median: 14.3 cm
Upper quarter: 18 cm
Largest: 53 cm

0–99 mm

312

100–199 mm

559

200–299 mm

167

300–399 mm

400–499 mm

500–599 mm

Lengths are direct survey measurements rather than anglers’ catches.

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 →