Rainbow trout · Oncorhynchus mykiss

Rainbow trout in the River Blythe

Largest measured rainbow trout: 50 cm

The largest rainbow trout measured in Environment Agency surveys of the River Blythe was 50 cm, recorded at Molands Bridge on 24 February 2004.

Across 29 measured rainbow trout, the median measured length was 36.7 cm.

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

See rainbow trout records across England →

Most recent observation27 May 2025Molands Bridge · 1 fish

Largest measured rainbow trout: 50 cm
Median length: 36.7 cm
Fish measured: 29
Survey locations: 3

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
50 cm	24 Feb 2004	Molands Bridge	79441
49 cm	9 Mar 2005	Molands Bridge	84245
49 cm	25 Apr 2002	Molands Bridge	26156
48.1 cm	4 Mar 2003	Molands Bridge	74934
46.8 cm	25 Apr 2002	Molands Bridge	26156
44.9 cm	25 Apr 2002	Molands Bridge	26156
40.9 cm	16 Mar 1993	Molands Bridge	4400
40.8 cm	24 Feb 2004	Molands Bridge	79441
40.1 cm	12 Jul 2006	Molands Bridge	100289
39.5 cm	27 May 2025	Molands Bridge	176653

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
Molands Bridge	16 Mar 1993	27 May 2025	8
Downstream Eastcote Brook	18 Mar 1993	23 May 2002	2
Upstream Eastcote Brook	18 Mar 1993	18 Mar 1993	1

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

1993–2025

Survey records by year

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

393

094

095

096

097

098

099

000

001

202

103

104

105

106

007

008

009

010

011

012

013

014

015

016

017

018

019

020

021

022

023

124

125

Fish measured by surveyors

Measured length distribution

See how the 29 measured fish were spread across different length ranges.

Smallest: 24.2 cm
Lower quarter: 33 cm
Median: 36.7 cm
Upper quarter: 40.8 cm
Largest: 50 cm

200–299 mm

300–399 mm

400–499 mm

500–599 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Blythe

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

Bullhead Gudgeon Minnow Roach Dace Chub

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 →