RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the River Alre

Largest measured brown / sea trout: 53.5 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Alre was 53.5 cm, recorded at Arle 1: Arle Mill on 13 September 2011.

Across 1,280 measured brown / sea trout, the median measured length was 21.9 cm.

Surveyors recorded weights for 80 brown / sea trout. The median was 7.6 oz (0.2165 kg) and the largest recorded weight was 2 lb 4.8 oz (1.04 kg).

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

See brown / sea trout records across England →

Most recent observation11 August 2025Arle 1: Arle Mill · 229 fish
Largest measured brown / sea trout
53.5 cm
Median length
21.9 cm
Fish measured
1,280
Survey locations
4

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
53.5 cm13 Sept 2011Arle 1: Arle Mill127926
45 cm3 Sept 2002Arle 2: d/s Drove Lane55062
42.6 cm13 Sept 2011Arle 1: Arle Mill127926
41.5 cm3 Sept 2002Arle 2: d/s Drove Lane55062
39.8 cm23 Sept 2009Arle 4: d/s Eel House120569
39.8 cm23 Sept 2009Arle 1: Arle Mill119227
39.6 cm23 Sept 2009Arle 1: Arle Mill119227
39.5 cm13 Sept 2011Arle 1: Arle Mill127926
39.2 cm13 Sept 2011Arle 1: Arle Mill127926
39.2 cm23 Sept 2009Arle 1: Arle Mill119227

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
Arle 1: Arle Mill23 Sept 200911 Aug 20259
Arle 4: d/s Eel House23 Sept 200929 Sept 20152
Arle 2: d/s Drove Lane3 Sept 200229 Sept 20153
Arle 3: Bishop's Sutton21 Sept 200921 Sept 20091

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 1,280 measured fish were spread across different length ranges.

Smallest
5.7 cm
Lower quarter
11.6 cm
Median
22 cm
Upper quarter
28.8 cm
Largest
53.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 80 brown / sea trout. This is a subset of the measured fish and may not represent the whole population.

Lightest
0.4 oz (0.011 kg)
Lower quarter
5.5 oz (0.1548 kg)
Median
7.6 oz (0.2165 kg)
Upper quarter
12.9 oz (0.3662 kg)
Heaviest
2 lb 4.8 oz (1.04 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the River Alre

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

Bullhead European eel Pike Brook lamprey Grayling

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 →