RiverFish

Atlantic salmon · Salmo salar

Atlantic salmon in the Croasdale Beck

Largest measured atlantic salmon: 18.2 cm

The largest atlantic salmon measured in Environment Agency surveys of the Croasdale Beck was 18.2 cm, recorded at Slaidburn on 13 October 2006.

Across 2,468 measured atlantic salmon, the median measured length was 6.8 cm.

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

See atlantic salmon records across England →

Most recent observation27 August 2025Slaidburn · 57 fish
Largest measured atlantic salmon
18.2 cm
Median length
6.8 cm
Fish measured
2,468
Survey locations
6

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.

LengthSurvey dateSurvey locationSurvey ID
18.2 cm13 Oct 2006Slaidburn101971
18 cm18 Aug 1993Croasdale Pages Farm112882
17.2 cm1 Sept 2004Slaidburn82899
17 cm1 Sept 2004Slaidburn82899
17 cm18 Aug 1993Croasdale Pages Farm112882
16.5 cm18 Aug 1993Croasdale Pages Farm112882
15.8 cm17 Sept 2009Slaidburn118973
15.4 cm4 Jul 2023Slaidburn162491
15.3 cm2 Aug 2011Slaidburn127420
15.2 cm17 Sept 2009Slaidburn118973

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 surveyedFirst recordedLast recordedVisits finding atlantic salmon
Slaidburn24 Aug 199327 Aug 202522
Shay House17 Aug 199327 Jul 20155
Shay House 25 Sept 20005 Sept 20001
Croasdale ptc Laneshaw Brook27 Sept 19935 Sept 20002
100M Upstream Bridge4 Sept 19985 Sept 20002
Croasdale Pages Farm18 Aug 199318 Aug 19931

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

1993–2025

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 2,468 measured fish were spread across different length ranges.

Smallest
3.9 cm
Lower quarter
5.8 cm
Median
6.8 cm
Upper quarter
10.3 cm
Largest
18.2 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Croasdale Beck

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

Brown / sea trout 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 →