RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the River Dunstable

Largest measured brown / sea trout: 23.9 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Dunstable was 23.9 cm, recorded at Dunstable Upstream STW on 25 May 2016.

Across 112 measured brown / sea trout, the median measured length was 10.8 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 Dunstable.

See brown / sea trout records across England →

Most recent observation25 May 2022Dunstable Upstream STW · 36 fish
Largest measured brown / sea trout
23.9 cm
Median length
10.8 cm
Fish measured
112
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
23.9 cm25 May 2016Dunstable Upstream STW148139
23.7 cm25 May 2016Dunstable Upstream STW148139
23.2 cm4 Jun 2010Dunstable122447
22.8 cm25 May 2016Dunstable Upstream STW148139
22.4 cm25 May 2016Dunstable Upstream STW148139
20.9 cm1 Jun 2018Dunstable Upstream STW154534
20.4 cm25 May 2016Dunstable Upstream STW148139
20 cm1 Jun 2018Dunstable Upstream STW154534
19.4 cm1 Jun 2018Dunstable Upstream STW154534
19.2 cm1 Jun 2018Dunstable Upstream STW154534

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
Dunstable Upstream STW25 May 201625 May 20223
Dunstable24 Jun 19934 Jun 20105
Stanbury Cross14 Jun 198424 Jun 19932

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

1984–2022

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 112 measured fish were spread across different length ranges.

Smallest
2.9 cm
Lower quarter
4.4 cm
Median
10.8 cm
Upper quarter
14.7 cm
Largest
23.9 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Dunstable

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

Bullhead Minnow Stone loach European eel

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 →