RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the Malham Beck

Largest measured brown / sea trout: 43.4 cm

The largest brown / sea trout measured in Environment Agency surveys of the Malham Beck was 43.4 cm, recorded at Malham Forge on 18 September 2003.

Across 1,103 measured brown / sea trout, the median measured length was 8.7 cm.

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

See brown / sea trout records across England →

Most recent observation18 August 2025Malham Forge · 31 fish
Largest measured brown / sea trout
43.4 cm
Median length
8.7 cm
Fish measured
1,103
Survey locations
2

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
43.4 cm18 Sept 2003Malham Forge78707
35 cm18 Aug 2025Malham Forge178044
34.5 cm21 Aug 2024Malham Forge166453
32.1 cm21 Aug 2023Malham Forge163024
30.7 cm16 Aug 2021Malham Forge160146
30 cm19 Aug 2011Malham Forge129510
28 cm21 Aug 2023Malham Forge163024
27.8 cm25 Sept 2017Malham Forge151848
27.8 cm25 Sept 2017Listers Arms151807
27.3 cm21 Aug 2024Listers Arms166451

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
Malham Forge14 Aug 200218 Aug 202521
Listers Arms25 Sept 201718 Aug 20257

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

2002–2025

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 1,103 measured fish were spread across different length ranges.

Smallest
5.3 cm
Lower quarter
7.6 cm
Median
8.7 cm
Upper quarter
13.1 cm
Largest
43.4 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Malham Beck

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

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 →