RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the River Main Cardinham

Largest measured brown / sea trout: 39 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Main Cardinham was 39 cm, recorded at Fletchers Bridge on 28 July 1994.

Across 5,108 measured brown / sea trout, the median measured length was 9.9 cm.

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

See brown / sea trout records across England →

Most recent observation11 September 2025Margate Ford · 63 fish
Largest measured brown / sea trout
39 cm
Median length
9.9 cm
Fish measured
5,108
Survey locations
6

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
39 cm28 Jul 1994Fletchers Bridge104666
35.4 cm1 Sept 2003Margate Ford77178
34.7 cm20 Sept 2016Woodford149342
34.2 cm18 Sept 2002Margate Ford72856
31.8 cm14 Sept 1979Cardinham135510
31.7 cm18 Aug 1998Fletchers Bridge104254
31.5 cm14 Sept 1979Cardinham135510
30.4 cm26 Sept 1979Margate Ford135511
30.3 cm3 Sept 2015Margate Ford146271
30.3 cm27 Aug 1999Woodford135038

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
Margate Ford12 Aug 197711 Sept 202534
Woodford22 Sept 198321 Aug 202417
Fletchers Bridge28 Jul 199423 Jul 202412
Millpool Bridge27 Sept 198312 Jun 202413
Cardinham14 Sept 19799 Sept 200410
Peach Bridge23 Sept 19838 Sept 20048

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

1977–2025

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 5,108 measured fish were spread across different length ranges.

Smallest
2.4 cm
Lower quarter
6.4 cm
Median
9.9 cm
Upper quarter
12.9 cm
Largest
39 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Main Cardinham

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

Bullhead Atlantic salmon European eel Brook lamprey

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 →