RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the Bielby Beck System

Largest measured brown / sea trout: 40.3 cm

The largest brown / sea trout measured in Environment Agency surveys of the Bielby Beck System was 40.3 cm, recorded at Blackfoss Beck, Woodhouse Farm DERCORS13 on 28 June 2012.

Across 24 measured brown / sea trout, the median measured length was 10.6 cm.

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

See brown / sea trout records across England →

Most recent observation18 June 2019The Beck,Thornton Bridge DERCORS14 · 1 fish
Largest measured brown / sea trout
40.3 cm
Median length
10.6 cm
Fish measured
24
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.

LengthSurvey dateSurvey locationSurvey ID
40.3 cm28 Jun 2012Blackfoss Beck, Woodhouse Farm DERCORS13131639
30.1 cm2 Jul 2002Burnby Beck, Hayton DERBT3572533
28 cm18 Jun 2019The Beck,Thornton Bridge DERCORS14154622
27 cm11 Jun 2019Blackfoss Beck, Woodhouse Farm DERCORS13154623
25.7 cm2 Jul 2002Burnby Beck, Hayton DERBT3572533
22 cm2 Jul 2002Burnby Beck, Hayton DERBT3572533
21.5 cm28 Jun 2012The Beck,Thornton Bridge DERCORS14131638
20.8 cm2 Jul 2002Blackfoss Beck, Woodhouse Farm DERCORS1372538
20.1 cm2 Jul 2002The Beck,Thornton Bridge DERCORS1472540
17.9 cm2 Jul 2002Burnby Beck, Hayton DERBT3572533

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 surveyedFirst recordedLast recordedVisits finding brown / sea trout
The Beck,Thornton Bridge DERCORS142 Jul 200218 Jun 20193
Blackfoss Beck, Woodhouse Farm DERCORS132 Jul 200211 Jun 20193
Burnby Beck, Hayton DERBT352 Jul 20022 Jul 20021

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

2002–2019

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 24 measured fish were spread across different length ranges.

Smallest
5.4 cm
Lower quarter
6.5 cm
Median
10.6 cm
Upper quarter
21.6 cm
Largest
40.3 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Bielby Beck System

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

Stone loach Bullhead Minnow European eel 3-spined stickleback Roach

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 →