RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the Blackaton Brook

Largest measured brown / sea trout: 40.2 cm

The largest brown / sea trout measured in Environment Agency surveys of the Blackaton Brook was 40.2 cm, recorded at Highbury (Te/WFD) on 19 July 2012.

Across 1,359 measured brown / sea trout, the median measured length was 10.9 cm.

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

See brown / sea trout records across England →

Most recent observation18 July 2025Highbury (Te/WFD) · 78 fish
Largest measured brown / sea trout
40.2 cm
Median length
10.9 cm
Fish measured
1,359
Survey locations
2

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
40.2 cm19 Jul 2012Highbury (Te/WFD)132502
33.5 cm6 Aug 2024Highbury (Te/WFD)167893
32.6 cm18 Jul 2025Highbury (Te/WFD)178624
32.1 cm6 Aug 2024Highbury (Te/WFD)167893
28.9 cm18 Jul 2025Highbury (Te/WFD)178624
28.2 cm6 Aug 2024Highbury (Te/WFD)167893
26.6 cm6 Aug 2024Highbury (Te/WFD)167893
25.4 cm27 Jul 2009Highbury (Te/WFD)118079
25.2 cm22 Jul 2010Highbury (Te/WFD)123069
25 cm6 Aug 2024Highbury (Te/WFD)167893

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
Highbury (Te/WFD)9 Jul 199618 Jul 202519
Ash Bridge (Sp)9 Jul 199615 Jul 20258

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

1996–2025

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 1,359 measured fish were spread across different length ranges.

Smallest
3.9 cm
Lower quarter
6.4 cm
Median
10.9 cm
Upper quarter
13.4 cm
Largest
40.2 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Blackaton Brook

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

Atlantic salmon 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 →