RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the River Mardle

Largest measured brown / sea trout: 29.8 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Mardle was 29.8 cm, recorded at Brooks Farm (Sp) on 30 June 2008.

Across 297 measured brown / sea trout, the median measured length was 9.5 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 Mardle.

See brown / sea trout records across England →

Most recent observation3 July 2024Brooks Farm (Sp) · 50 fish
Largest measured brown / sea trout
29.8 cm
Median length
9.5 cm
Fish measured
297
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
29.8 cm30 Jun 2008Brooks Farm (Sp)111690
28.2 cm15 Aug 2011Brooks Farm (Sp)127399
27 cm3 Jul 2024Brooks Farm (Sp)165618
25.4 cm30 Jun 2008Brooks Farm (Sp)111690
25.2 cm3 Jul 2024Brooks Farm (Sp)165618
23.2 cm15 Aug 2011U/s Merryfield (Sp/)*127402
23.2 cm15 Aug 2011Brooks Farm (Sp)127399
23.1 cm30 Jun 2008Brooks Farm (Sp)111690
21.5 cm2 Aug 2021Brooks Farm (Sp)160649
21.2 cm3 Jul 2024Brooks Farm (Sp)165618

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
Brooks Farm (Sp)31 May 19963 Jul 20248
U/s Merryfield (Sp/)*15 Aug 201115 Aug 20111
Merryfield (Sp)*31 May 199612 Jul 20023

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

1996–2024

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 297 measured fish were spread across different length ranges.

Smallest
4.5 cm
Lower quarter
6.3 cm
Median
9.5 cm
Upper quarter
13.3 cm
Largest
29.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Mardle

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

Bullhead 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 →