RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the Birk Beck

Largest measured brown / sea trout: 40 cm

The largest brown / sea trout measured in Environment Agency surveys of the Birk Beck was 40 cm, recorded at Greenholme on 8 August 1988.

Across 1,320 measured brown / sea trout, the median measured length was 7.4 cm.

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

See brown / sea trout records across England →

Most recent observation19 August 2025Scout Green, Birk Beck · 70 fish
Largest measured brown / sea trout
40 cm
Median length
7.4 cm
Fish measured
1,320
Survey locations
7

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 cm8 Aug 1988Greenholme114846
27.3 cm14 Sept 2009Downstream Bretherdale Beck Nr Low Scales Farm118980
26.4 cm5 Sept 2023Downstream Bretherdale Beck Nr Low Scales Farm163162
24.8 cm5 Sept 2023Downstream Bretherdale Beck Nr Low Scales Farm163162
24 cm16 Oct 2006Downstream Bretherdale Beck Nr Low Scales Farm101874
23.7 cm2 Aug 2010Downstream Bretherdale Beck Nr Low Scales Farm123217
23.5 cm21 Aug 1991Greenholme114952
23 cm9 Jul 2013Downstream Bretherdale Beck Nr Low Scales Farm137320
22.5 cm2 Aug 2007Steps106402
22.5 cm21 Aug 1991Sheperds Bridge114948

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
Scout Green, Birk Beck13 Aug 198219 Aug 20258
Downstream Bretherdale Beck Nr Low Scales Farm23 Jun 19814 Jul 202426
Steps14 Jul 19812 Aug 20077
Shap Wells13 Aug 198222 Aug 19915
Sheperds Bridge21 Aug 199121 Aug 19911
Salterwath21 Aug 199121 Aug 19911
Greenholme8 Aug 198821 Aug 19914

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

1981–2025

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 1,320 measured fish were spread across different length ranges.

Smallest
4.5 cm
Lower quarter
6.6 cm
Median
7.4 cm
Upper quarter
9 cm
Largest
40 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Birk Beck

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 →