RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the River Misbourne

Largest measured brown / sea trout: 40 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Misbourne was 40 cm, recorded at Downstream of Shardeloes Lake on 13 May 2011.

Across 35 measured brown / sea trout, the median measured length was 6.8 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 Misbourne.

See brown / sea trout records across England →

Most recent observation12 May 2026Denham Country Park upstream · 1 fish
Largest measured brown / sea trout
40 cm
Median length
6.8 cm
Fish measured
35
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
40 cm13 May 2011Downstream of Shardeloes Lake126425
37.2 cm5 May 2026Downstream of Shardeloes Lake181194
37 cm13 May 2011Downstream of Shardeloes Lake126425
34.2 cm13 May 2011Downstream of Shardeloes Lake126425
32.1 cm12 May 2026Denham Country Park upstream181311
29.9 cm13 May 2011Downstream of Shardeloes Lake126425
26.4 cm7 Jun 2019Downstream of Shardeloes Lake154600
21.7 cm13 May 2011Downstream of Shardeloes Lake126425
21.5 cm5 May 2026Downstream of Shardeloes Lake181194
21.2 cm13 May 2011Downstream of Shardeloes Lake126425

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
Denham Country Park upstream7 Jun 201912 May 20262
Downstream of Shardeloes Lake13 May 20115 May 20263
Isle of Wight Farm9 May 20119 May 20111

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

2011–2026

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 35 measured fish were spread across different length ranges.

Smallest
4.4 cm
Lower quarter
5.4 cm
Median
6.8 cm
Upper quarter
21.4 cm
Largest
40 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Misbourne

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

Bullhead 3-spined stickleback

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 →