RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the Losterdale Brook

Largest measured brown / sea trout: 30.8 cm

The largest brown / sea trout measured in Environment Agency surveys of the Losterdale Brook was 30.8 cm, recorded at Downstream Sykes Farm on 2 August 2004.

Across 948 measured brown / sea trout, the median measured length was 7.2 cm.

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

See brown / sea trout records across England →

Most recent observation23 July 2021Upstream Sykes Farm · 122 fish
Largest measured brown / sea trout
30.8 cm
Median length
7.2 cm
Fish measured
948
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
30.8 cm2 Aug 2004Downstream Sykes Farm83078
25 cm3 Aug 1993Upstream Intake112911
23.5 cm27 Aug 1998Upstream Sykes Farm112376
23.5 cm3 Aug 1993Downstream Sykes Farm112914
21.5 cm27 Aug 1998Upstream Intake112371
20.5 cm23 Jul 2021Upstream Sykes Farm159986
20.5 cm3 Aug 1993Downstream Sykes Farm112914
20 cm1 Aug 1984Upstream Intake115508
19.7 cm2 Aug 2004Downstream Sykes Farm83078
19.2 cm10 Jul 2009Upstream Intake117811

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
Upstream Sykes Farm1 Aug 198423 Jul 20217
Upstream Intake1 Aug 198415 Jul 20156
Downstream Sykes Farm3 Aug 199310 Jul 20094

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

1984–2021

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 948 measured fish were spread across different length ranges.

Smallest
3.9 cm
Lower quarter
6 cm
Median
7.2 cm
Upper quarter
11 cm
Largest
30.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Losterdale Brook

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

Atlantic salmon European eel

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 →