RiverFish

Rainbow trout · Oncorhynchus mykiss

Rainbow trout in the River Kennet

Largest measured rainbow trout: 51.8 cm

The largest rainbow trout measured in Environment Agency surveys of the River Kennet was 51.8 cm, recorded at Parliament Draft - Eel on 10 October 2023.

Across 34 measured rainbow trout, the median measured length was 43.5 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 Kennet.

See rainbow trout records across England →

Most recent observation8 October 2024Half Water - Eel · 2 fish
Largest measured rainbow trout
51.8 cm
Median length
43.5 cm
Fish measured
34
Survey locations
8

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.

LengthSurvey dateSurvey locationSurvey ID
51.8 cm10 Oct 2023Parliament Draft - Eel164467
50.3 cm20 Oct 2004Marsh Benham82863
48.2 cm12 Oct 2005Marsh Benham86894
47.4 cm22 Mar 2006Willow Stream - Barton Court90425
46.6 cm8 Oct 2024Half Water - Eel167979
46.2 cm17 Oct 2023Half Water - Eel164399
45.8 cm23 Mar 2017Willow Stream - Barton Court150321
45.5 cm1 Oct 2024Parliament Draft - Eel168001
45.5 cm4 Nov 2002Pipe Stream - Wilderness73644
45.3 cm17 Mar 2016Willow Stream - Barton Court147881

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 surveyedFirst recordedLast recordedVisits finding rainbow trout
Half Water - Eel17 Oct 20238 Oct 20242
Parliament Draft - Eel10 Oct 20231 Oct 20242
Willow Stream - Barton Court16 Mar 200429 Oct 20198
Shenfield by-pass channel18 Sept 201518 Sept 20151
Pipe Stream - Wilderness4 Nov 200230 Mar 20102
Marsh Benham20 Oct 200412 Oct 20052
Gaston Lock - Burghfield Mill9 Apr 20039 Apr 20031
Howe Mill28 Sept 200031 Oct 20022

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

2000–2024

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 34 measured fish were spread across different length ranges.

Smallest
12.9 cm
Lower quarter
39.8 cm
Median
43.6 cm
Upper quarter
45.5 cm
Largest
51.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Kennet

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

Pike Brown / sea trout Chub Dace Perch Roach

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 →