RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the River Calder

Largest measured brown / sea trout: 58.9 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Calder was 58.9 cm, recorded at Dewsbury (end of flood relief channel) on 7 July 2009.

Across 3,593 measured brown / sea trout, the median measured length was 17.5 cm.

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

See brown / sea trout records across England →

Most recent observation2 October 2025Lydgate · 67 fish
Largest measured brown / sea trout
58.9 cm
Median length
17.5 cm
Fish measured
3,593
Survey locations
24

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
58.9 cm7 Jul 2009Dewsbury (end of flood relief channel)117763
55.5 cm20 Sept 2007Dewsbury (end of flood relief channel)108391
52.4 cm5 Jul 1999Brookfoot109490
49.7 cm2 Jul 2024Elland power Station d/s165481
48.4 cm30 Jun 2010Elland power Station d/s122847
47.9 cm6 Jul 2010Brighouse Industrial Estate122858
47.2 cm4 Jul 2008Elland power Station d/s111875
47.1 cm9 Jul 1999Elland power Station d/s109488
47 cm5 Aug 2012Todmorden Bus Station133227
46.5 cm23 Jul 2024Dewsbury (end of flood relief channel)165840

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
Lydgate23 Jun 19992 Oct 20257
Warmans Industrial Estate23 Jun 199927 Aug 202517
Dewsbury (end of flood relief channel)17 Sept 200423 Jul 20248
Elland power Station d/s9 Jul 19992 Jul 202414
Chantry Bridge10 Jul 200224 Jun 202412
Hebden Bridge Train Station15 Oct 202115 Oct 20211
Hebble End (Co-op Car Park)8 Sept 200915 Oct 20214
Todmorden Bus Station23 Jun 19994 Aug 20154
Stoodley Glen8 Sept 20094 Aug 20152
Burnley Road14 Oct 20104 Aug 20152
Sands Mill (Dewsbury)22 Jun 201522 Jun 20151
Cornmill Weir12 Jul 199919 Jun 201511
Brighouse Industrial Estate9 Jul 20026 Jul 20108
Methley28 Jul 200628 Jul 20061
Smalley Bight22 Jul 19997 Jul 20062
Eastwood S.T.W23 Jun 199912 Oct 20043
Brearley Weir25 Jun 199926 Aug 20032
Ravensthorpe at weir (old site)11 Jul 200211 Jul 20021
Downstream Sowerby Bridge5 Jul 19995 Jul 19991
Brookfoot5 Jul 19995 Jul 19991
Us Elland Power station2 Jul 19992 Jul 19991
Elland Weirs2 Jul 19992 Jul 19991
High Royds S.T.W25 Jun 199925 Jun 19991
Hebden Bridge - u/s25 Jun 199925 Jun 19991

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

1999–2025

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 3,593 measured fish were spread across different length ranges.

Smallest
3.3 cm
Lower quarter
9.8 cm
Median
17.5 cm
Upper quarter
23 cm
Largest
58.9 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Calder

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

Stone loach Bullhead Gudgeon Chub Roach Perch

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 →