RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the River Hayle

Largest measured brown / sea trout: 37.9 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Hayle was 37.9 cm, recorded at Rellubbus on 5 September 2003.

Across 1,261 measured brown / sea trout, the median measured length was 10.4 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 Hayle.

See brown / sea trout records across England →

Most recent observation17 June 2025d/s Rellubbus Bridge · 15 fish
Largest measured brown / sea trout
37.9 cm
Median length
10.4 cm
Fish measured
1,261
Survey locations
9

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
37.9 cm5 Sept 2003Rellubbus76930
34.5 cm30 Aug 2002River Valley72879
32.1 cm24 May 2007d/s Rellubbus Bridge105872
31.3 cm5 Sept 2003Rellubbus76930
31.2 cm10 Jun 2010d/s Rellubbus Bridge122453
28.6 cm9 Aug 2000St Erth135660
27.9 cm5 Sept 2003Rellubbus76930
27.8 cm5 Sept 2003Rellubbus76930
27.6 cm4 Sept 2003St Erth76933
27.4 cm29 Sept 1977River Valley120881

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
d/s Rellubbus Bridge4 Oct 197717 Jun 202510
St Erth5 Oct 198316 Jun 20257
u/s Binnerton Adit30 Sept 197711 Jun 20257
Rellubbus5 Sept 20025 Sept 20032
River Valley29 Sept 19774 Sept 20035
Clowance-Drym5 Oct 197710 Aug 20003
Sunny Corner5 Oct 197712 Oct 19832
Riverside Bungalow11 Oct 198311 Oct 19831
Godolphin Bridge3 Oct 197712 Sept 19832

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 1,261 measured fish were spread across different length ranges.

Smallest
3.6 cm
Lower quarter
8.2 cm
Median
10.4 cm
Upper quarter
15 cm
Largest
37.9 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Hayle

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

European eel 3-spined stickleback

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 →