Perch · Perca fluviatilis

Perch in the Owler Beck

Largest measured perch: 22.9 cm

The largest perch measured in Environment Agency surveys of the Owler Beck was 22.9 cm, recorded at Milnthorpe on 1 September 1999.

Across 60 measured perch, the median measured length was 8.3 cm.

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

See perch records across England →

Most recent observation17 August 2015Kettlethorpe · 4 fish

Largest measured perch: 22.9 cm
Median length: 8.3 cm
Fish measured: 60
Survey locations: 4

Individual EA measurements

Largest measured perch

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
22.9 cm	1 Sept 1999	Milnthorpe	109516
19.5 cm	1 Sept 1999	Milnthorpe	109516
19 cm	1 Sept 1999	Kettlethorpe	109514
15.4 cm	1 Sept 1999	Milnthorpe	109516
15.1 cm	1 Sept 1999	Kettlethorpe	109514
14.6 cm	1 Sept 1999	Milnthorpe	109516
14.5 cm	1 Sept 1999	Milnthorpe	109516
14.5 cm	1 Sept 1999	Milnthorpe	109516
14.2 cm	1 Sept 1999	Kettlethorpe	109514
13.7 cm	1 Sept 1999	Milnthorpe	109516

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

Explore the river

Where perch were found

Each point marks a survey location with at least one perch 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 perch
Kettlethorpe	1 Sept 1999	17 Aug 2015	2
Notton	1 Sept 1999	1 Sept 1999	1
Milnthorpe	1 Sept 1999	1 Sept 1999	1
Confluence with Calder	1 Sept 1999	1 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.

1999–2015

Survey records by year

Each bar shows how many survey visits recorded perch that year.

499

000

001

002

003

004

005

006

007

008

009

010

011

012

013

014

115

Fish measured by surveyors

Measured length distribution

See how the 60 measured fish were spread across different length ranges.

Smallest: 5.5 cm
Lower quarter: 7.2 cm
Median: 8.4 cm
Upper quarter: 13 cm
Largest: 22.9 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 Owler Beck

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

Roach

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 →