Atlantic salmon · Salmo salar

Atlantic salmon in the Dulas Brook - Hay

Largest measured atlantic salmon: 15.6 cm

The largest atlantic salmon measured in Environment Agency surveys of the Dulas Brook - Hay was 15.6 cm, recorded at W110k on 8 July 2003.

Across 117 measured atlantic salmon, the median measured length was 10 cm.

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

See atlantic salmon records across England →

Most recent observation14 August 2014W110k · 8 fish

Largest measured atlantic salmon: 15.6 cm
Median length: 10 cm
Fish measured: 117
Survey locations: 4

Individual EA measurements

Largest measured atlantic salmon

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
15.6 cm	8 Jul 2003	W110k	78185
14.7 cm	15 Aug 2012	Hd1	132895
13.4 cm	14 Aug 2014	W110j	144124
13.2 cm	14 Aug 2014	W110k	144126
13.2 cm	15 Aug 2012	Hd1	132895
12.8 cm	15 Aug 2012	Hd1	132895
12.8 cm	15 Aug 2012	Hd1	132895
12.6 cm	14 Aug 2014	W110k	144126
12.6 cm	15 Aug 2012	Hd1	132895
12.5 cm	14 Aug 2014	W110k	144126

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where atlantic salmon were found

Each point marks a survey location with at least one atlantic salmon 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 atlantic salmon
W110k	28 Apr 1998	14 Aug 2014	3
W110j	28 Apr 1998	14 Aug 2014	3
Hd1	15 Aug 2012	15 Aug 2012	1
W110p	23 Sept 1997	28 Apr 1998	2

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

1997–2014

Survey records by year

Each bar shows how many survey visits recorded atlantic salmon that year.

197

398

099

000

001

002

203

004

005

006

007

008

009

010

011

112

013

214

Fish measured by surveyors

Measured length distribution

See how the 117 measured fish were spread across different length ranges.

Smallest: 5.1 cm
Lower quarter: 7.5 cm
Median: 10 cm
Upper quarter: 11.5 cm
Largest: 15.6 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Dulas Brook - Hay

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

Brown / sea trout Bullhead

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 →