RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the River Loddon

Largest measured brown / sea trout: 60.3 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Loddon was 60.3 cm, recorded at Lilly Mill on 15 October 2013.

Across 5,319 measured brown / sea trout, the median measured length was 15.5 cm.

Surveyors recorded weights for 172 brown / sea trout. The median was 0.6 oz (0.016 kg) and the largest recorded weight was 1 lb 2 oz (0.51 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 Loddon.

See brown / sea trout records across England →

Most recent observation28 October 2025Lodge Farm · 148 fish
Largest measured brown / sea trout
60.3 cm
Median length
15.5 cm
Fish measured
5,319
Survey locations
15

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
60.3 cm15 Oct 2013Lilly Mill139599
52.5 cm15 Oct 2015Keepers Cottage147159
52.1 cm8 Nov 2012Keepers Cottage134906
51.4 cm18 Oct 2006Keepers Cottage102073
50.7 cm15 Oct 2002Lilly Mill65422
50.6 cm15 Oct 2002Lilly Mill65422
50.3 cm15 Oct 2002Lilly Mill65422
49.9 cm11 Nov 2004Lilly Mill83264
48.1 cm15 Oct 2002Lilly Mill65422
46.8 cm24 Oct 2024Keepers Cottage167896

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
Lodge Farm4 Nov 199128 Oct 202523
Keepers Cottage25 Oct 200228 Oct 202516
Upper Stanford End20 May 20042 Apr 20252
Twyford RH channel Downstream25 Apr 201925 Apr 20191
Stratfield Saye15 Oct 201312 Oct 20162
Upstream Bartons Mill26 Apr 201326 Apr 20162
Sheepbridge2 May 20067 Apr 20165
Lower Stanford End17 Apr 20025 Apr 20168
Lilly Mill5 Nov 199115 Oct 20137
Twyford RH Channel14 Apr 201014 Apr 20101
Whistley Mill18 Apr 200218 Apr 20021
Twyford LH Channel11 Apr 200211 Apr 20021
Upstream Bow brook5 Nov 19915 Nov 19911
Wildmoor Farm4 Nov 19914 Nov 19911
Stanford End23 Apr 199123 Apr 19911

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

1991–2025

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 5,319 measured fish were spread across different length ranges.

Smallest
3.5 cm
Lower quarter
10.2 cm
Median
15.5 cm
Upper quarter
20.9 cm
Largest
60.3 cm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 172 brown / sea trout. This is a subset of the measured fish and may not represent the whole population.

Lightest
0.1 oz (0.004 kg)
Lower quarter
0.4 oz (0.011 kg)
Median
0.6 oz (0.016 kg)
Upper quarter
1 oz (0.0272 kg)
Heaviest
1 lb 2 oz (0.51 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 Loddon

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

Chub Gudgeon Pike Roach Dace 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 →