RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the Ewelme Stream

Largest measured brown / sea trout: 21.1 cm

The largest brown / sea trout measured in Environment Agency surveys of the Ewelme Stream was 21.1 cm, recorded at Brook Street on 4 August 2015.

Across 148 measured brown / sea trout, the median measured length was 9.1 cm.

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

See brown / sea trout records across England →

Most recent observation1 August 2025Allotments · 7 fish
Largest measured brown / sea trout
21.1 cm
Median length
9.1 cm
Fish measured
148
Survey locations
3

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
21.1 cm4 Aug 2015Brook Street145735
19.7 cm4 Aug 2015Brook Street145735
19.3 cm4 Aug 2015Brook Street145735
18.9 cm4 Aug 2015Brook Street145735
18.8 cm4 Aug 2015Brook Street145735
18.7 cm4 Aug 2015Brook Street145735
18.6 cm4 Aug 2015Brook Street145735
18.5 cm4 Aug 2015Brook Street145735
17.1 cm4 Aug 2015Brook Street145735
16.9 cm4 Aug 2015Brook Street145735

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
Upstream Passey Crescent1 Aug 20251 Aug 20251
Allotments1 Aug 20251 Aug 20251
Brook Street4 Aug 20154 Aug 20151

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

2015–2025

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 148 measured fish were spread across different length ranges.

Smallest
5.6 cm
Lower quarter
7.9 cm
Median
9.1 cm
Upper quarter
14.6 cm
Largest
21.1 cm

Lengths are direct survey measurements rather than anglers’ catches.

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 →