Brown / sea trout · Salmo trutta

Brown / sea trout in the River Waldron Gill

Largest measured brown / sea trout: 38.9 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Waldron Gill was 38.9 cm, recorded at Cowden Hall on 7 October 1999.

Across 234 measured brown / sea trout, the median measured length was 15.3 cm.

Surveyors recorded weights for 174 brown / sea trout. The median was 1.8 oz (0.0505 kg) and the largest recorded weight was 1 lb 8.3 oz (0.69 kg).

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

See brown / sea trout records across England →

Most recent observation10 September 2025Brookside · 16 fish

Largest measured brown / sea trout: 38.9 cm
Median length: 15.3 cm
Fish measured: 234
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.

Length	Survey date	Survey location	Survey ID
38.9 cm	7 Oct 1999	Cowden Hall	51992
38.6 cm	9 Sept 2004	Cowden Hall	82183
36 cm	9 Sept 2004	Cowden Hall	82183
32.7 cm	26 Sept 2007	Cowden Hall	106947
32.5 cm	9 Sept 2004	Cowden Hall	82183
32.5 cm	7 Oct 1999	Cowden Hall	51992
31.6 cm	9 Sept 2004	Cowden Hall	82183
31.4 cm	26 Sept 2007	Cowden Hall	106947
31.2 cm	9 Sept 2004	Cowden Hall	82183
29.1 cm	26 Sept 2007	Cowden Hall	106947

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 surveyed	First recorded	Last recorded	Visits finding brown / sea trout
Brookside	10 Sept 2004	10 Sept 2025	3
Cowden Hall	7 Oct 1999	26 Sept 2007	3
Horam	24 Sept 1999	24 Sept 1999	1

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

1999–2025

Survey records by year

Each bar shows how many survey visits recorded brown / sea trout that year.

299

000

001

002

003

204

005

006

107

008

009

010

011

012

013

114

015

016

017

018

019

020

021

022

023

024

125

Fish measured by surveyors

Measured length distribution

See how the 234 measured fish were spread across different length ranges.

Smallest: 5.4 cm
Lower quarter: 10 cm
Median: 15.3 cm
Upper quarter: 20.1 cm
Largest: 38.9 cm

0–99 mm

100–199 mm

117

200–299 mm

300–399 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 174 brown / sea trout. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0.1 oz (0.002 kg)
Lower quarter: 0.3 oz (0.009 kg)
Median: 1.8 oz (0.0505 kg)
Upper quarter: 3.9 oz (0.1095 kg)
Heaviest: 1 lb 8.3 oz (0.69 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the River Waldron Gill

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

European eel Minnow

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 →