Rainbow trout · Oncorhynchus mykiss

Rainbow trout in the River Loddon

Largest measured rainbow trout: 51.9 cm

The largest rainbow trout measured in Environment Agency surveys of the River Loddon was 51.9 cm, recorded at Lilly Mill on 8 November 2001.

Across 68 measured rainbow trout, the median measured length was 40.5 cm.

Surveyors recorded weights for 6 rainbow trout. The median was 3.2 oz (0.091 kg) and the largest recorded weight was 4.1 oz (0.115 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 rainbow trout records across England →

Most recent observation12 October 2016Stratfield Saye · 4 fish

Largest measured rainbow trout: 51.9 cm
Median length: 40.5 cm
Fish measured: 68
Survey locations: 6

Individual EA measurements

Largest measured rainbow trout

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

Length	Survey date	Survey location	Survey ID
51.9 cm	8 Nov 2001	Lilly Mill	50920
51.3 cm	12 Oct 2016	Stratfield Saye	149697
50.4 cm	11 Nov 2003	Lilly Mill	78794
50.2 cm	15 Oct 2013	Lilly Mill	139599
49.8 cm	15 Oct 2013	Stratfield Saye	139600
49 cm	7 Nov 2005	Lilly Mill	87630
48.9 cm	15 Oct 2013	Stratfield Saye	139600
48.8 cm	15 Oct 2013	Lilly Mill	139599
48.2 cm	11 Nov 2003	Lilly Mill	78794
47 cm	15 Oct 2013	Stratfield Saye	139600

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where rainbow trout were found

Each point marks a survey location with at least one rainbow 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 surveyed	First recorded	Last recorded	Visits finding rainbow trout
Stratfield Saye	15 Oct 2013	12 Oct 2016	2
Lodge Farm	11 Oct 2001	15 Oct 2015	4
Lilly Mill	8 Nov 2001	15 Oct 2013	6
Keepers Cottage	23 Nov 2004	23 Nov 2004	1
Upper Stanford End	20 May 2004	20 May 2004	1
Wildmoor Farm	4 Nov 1991	4 Nov 1991	1

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

1991–2016

Survey records by year

Each bar shows how many survey visits recorded rainbow trout that year.

191

092

093

094

095

096

097

098

099

000

201

102

103

404

205

006

007

008

009

010

011

012

213

014

115

116

Fish measured by surveyors

Measured length distribution

See how the 68 measured fish were spread across different length ranges.

Smallest: 17.3 cm
Lower quarter: 35.8 cm
Median: 40.5 cm
Upper quarter: 44.4 cm
Largest: 51.9 cm

100–199 mm

200–299 mm

300–399 mm

400–499 mm

500–599 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 6 rainbow trout. This is a subset of the measured fish and may not represent the whole population.

Lightest: 2.2 oz (0.063 kg)
Lower quarter: 2.7 oz (0.0768 kg)
Median: 3.2 oz (0.091 kg)
Upper quarter: 3.4 oz (0.0962 kg)
Heaviest: 4.1 oz (0.115 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 Brown / sea trout Pike Roach Dace

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 →