Brown / sea trout · Salmo trutta

Brown / sea trout in the Main Holywell Stream

Largest measured brown / sea trout: 26.7 cm

The largest brown / sea trout measured in Environment Agency surveys of the Main Holywell Stream was 26.7 cm, recorded at Holywell on 29 August 2000.

Across 98 measured brown / sea trout, the median measured length was 14.6 cm.

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

See brown / sea trout records across England →

Most recent observation14 September 2017Upstream Treludderow Stream · 15 fish

Largest measured brown / sea trout: 26.7 cm
Median length: 14.6 cm
Fish measured: 98
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
26.7 cm	29 Aug 2000	Holywell	135778
24.9 cm	14 Aug 2000	u/s Ellenglaze	135701
22.4 cm	14 Aug 2000	u/s Ellenglaze	135701
22 cm	9 May 2011	u/s Ellenglaze	126512
22 cm	9 May 2011	u/s Ellenglaze	126512
21.5 cm	9 May 2011	u/s Ellenglaze	126512
21.5 cm	14 Aug 2000	u/s Ellenglaze	135701
21.1 cm	14 Aug 2000	u/s Ellenglaze	135701
20.8 cm	29 Aug 2000	Holywell	135778
19.7 cm	29 Aug 2000	Holywell	135778

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
Upstream Treludderow Stream	14 Sept 2017	14 Sept 2017	1
u/s Ellenglaze	14 Aug 2000	9 May 2011	3
Holywell	29 Aug 2000	29 Aug 2000	1

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

2000–2017

Survey records by year

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

200

001

002

003

004

105

006

007

008

009

010

111

012

013

014

015

016

117

Fish measured by surveyors

Measured length distribution

See how the 98 measured fish were spread across different length ranges.

Smallest: 5.3 cm
Lower quarter: 12.3 cm
Median: 14.6 cm
Upper quarter: 17.2 cm
Largest: 26.7 cm

0–99 mm

100–199 mm

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Main Holywell Stream

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

European eel

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 →