RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the Mill Brook

Largest measured brown / sea trout: 31 cm

The largest brown / sea trout measured in Environment Agency surveys of the Mill Brook was 31 cm, recorded at Neen Sollars 344 on 26 May 1999.

Across 217 measured brown / sea trout, the median measured length was 17.1 cm.

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

See brown / sea trout records across England →

Most recent observation11 June 2025Lower Langley · 32 fish
Largest measured brown / sea trout
31 cm
Median length
17.1 cm
Fish measured
217
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
31 cm26 May 1999Neen Sollars 34473684
28.7 cm26 May 1999Neen Sollars 34473684
27.2 cm11 Jun 2025Lower Langley177315
27 cm11 Jun 2025Lower Langley177315
26.1 cm11 Jun 2025Lower Langley177315
25.4 cm13 Jun 2024Lower Langley168254
25.3 cm26 May 1999Neen Sollars 34473684
25.2 cm26 May 1999Neen Sollars 34473684
25.1 cm26 May 1999Neen Sollars 34473684
25 cm13 Jun 2024Lower Langley168254

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
Lower Langley30 Jun 201111 Jun 20253
Neen Sollars 34428 Apr 199226 May 19992
Haybridge28 Apr 199326 May 19992

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

1992–2025

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 217 measured fish were spread across different length ranges.

Smallest
3.2 cm
Lower quarter
12.9 cm
Median
17.1 cm
Upper quarter
20.6 cm
Largest
31 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Mill Brook

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

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 →