Brown / sea trout · Salmo trutta

Brown / sea trout in the River Cockhaise

Largest measured brown / sea trout: 32 cm

The largest brown / sea trout measured in Environment Agency surveys of the River Cockhaise was 32 cm, recorded at Wildboar Bridge on 11 August 2011.

Across 123 measured brown / sea trout, the median measured length was 17.9 cm.

Surveyors recorded weights for 53 brown / sea trout. The median was 2.3 oz (0.066 kg) and the largest recorded weight was 12.7 oz (0.359 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 Cockhaise.

See brown / sea trout records across England →

Most recent observation31 July 2024Wildboar Bridge · 2 fish

Largest measured brown / sea trout: 32 cm
Median length: 17.9 cm
Fish measured: 123
Survey locations: 4

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
32 cm	11 Aug 2011	Wildboar Bridge	127362
32 cm	26 Jun 2001	Wildboar Bridge	51877
30.3 cm	20 Sept 2023	Wildboar Bridge	163716
30.3 cm	14 Sept 2017	Wildboar Bridge	151630
29 cm	6 Aug 2015	Wildboar Bridge	145962
28.5 cm	4 Sept 2003	Horsted Keynes STW	76921
28.1 cm	6 Aug 2015	Wildboar Bridge	145962
27.2 cm	14 Sept 2017	Wildboar Bridge	151630
27.2 cm	6 Aug 2013	Wildboar Bridge	137713
26.5 cm	20 Sept 2023	Wildboar Bridge	163716

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
Wildboar Bridge	26 Jun 2001	31 Jul 2024	9
Upstream Cinder Hill Trout Fishery	13 May 2014	13 May 2014	1
Holywell Pumping Station	1 Aug 2003	2 May 2013	2
Horsted Keynes STW	26 Jun 2001	4 Sept 2003	2

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

2001–2024

Survey records by year

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

201

002

303

004

005

006

007

008

109

010

111

012

213

114

115

016

117

018

019

020

021

022

123

124

Fish measured by surveyors

Measured length distribution

See how the 123 measured fish were spread across different length ranges.

Smallest: 4.5 cm
Lower quarter: 8.3 cm
Median: 17.9 cm
Upper quarter: 21.7 cm
Largest: 32 cm

0–99 mm

100–199 mm

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 53 brown / sea trout. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0 oz (0.001 kg)
Lower quarter: 0.2 oz (0.007 kg)
Median: 2.3 oz (0.066 kg)
Upper quarter: 4 oz (0.112 kg)
Heaviest: 12.7 oz (0.359 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 Cockhaise

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

Perch European eel Bullhead Minnow Gudgeon Chub

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 →