RiverFish

Brown / sea trout · Salmo trutta

Brown / sea trout in the River Porter

Largest measured brown / sea trout: 37.1 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Porter was 37.1 cm, recorded at Endcliffe Park on 13 September 2017.

Across 464 measured brown / sea trout, the median measured length was 8.5 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 Porter.

See brown / sea trout records across England →

Most recent observation11 September 2025Endcliffe Park Depleted Reach · 43 fish
Largest measured brown / sea trout
37.1 cm
Median length
8.5 cm
Fish measured
464
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
37.1 cm13 Sept 2017Endcliffe Park151754
35.1 cm19 Sept 2023Endcliffe Park163309
32.7 cm15 Sept 2011Endcliffe Park129034
28.3 cm15 Sept 2011Endcliffe Park129034
28 cm19 Sept 2023Endcliffe Park163309
27.7 cm30 Aug 2005Downstream Forge Dam87772
27.7 cm5 Oct 1993Downstream Forge Dam110898
27.4 cm19 Sept 2023Endcliffe Park163309
27.4 cm30 Aug 2005Endcliffe Park87771
27 cm22 Jan 1986Sheffield110746

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
Endcliffe Park Upstream Depleted11 Sept 202511 Sept 20251
Endcliffe Park Downstream Depleted11 Sept 202511 Sept 20251
Endcliffe Park Depleted Reach11 Sept 202511 Sept 20251
Endcliffe Park19 Nov 199319 Sept 20235
Downstream Forge Dam5 Oct 199319 Sept 20235
Sheffield22 Jan 19866 Oct 19972

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

1986–2025

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 464 measured fish were spread across different length ranges.

Smallest
4.9 cm
Lower quarter
7.1 cm
Median
8.5 cm
Upper quarter
13.7 cm
Largest
37.1 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Porter

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

Bullhead 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 →