Perch · Perca fluviatilis

Perch in the Scarrow Beck

Largest measured perch: 22.5 cm

The largest perch measured in Environment Agency surveys of the Scarrow Beck was 22.5 cm, recorded at Downstream Calthorpe Bridge on 29 April 1994.

Across 35 measured perch, the median measured length was 14 cm.

Surveyors recorded weights for 5 perch. The median was 0.5 oz (0.015 kg) and the largest recorded weight was 0.6 oz (0.016 kg).

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

See perch records across England →

Most recent observation27 November 2002Hanworth North bridge · 2 fish

Largest measured perch: 22.5 cm
Median length: 14 cm
Fish measured: 35
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
22.5 cm	29 Apr 1994	Downstream Calthorpe Bridge	16790
22.2 cm	1 May 1991	Upstream Calthorpe Ford	16789
21.6 cm	1 May 1991	Upstream Calthorpe Ford	16789
19.3 cm	27 Nov 2002	Hanworth North bridge	73429
18 cm	27 Nov 2002	Hanworth North bridge	73429
17.5 cm	1 May 1991	Upstream Calthorpe Ford	16789
17.1 cm	18 Jul 1988	Upstream Calthorpe Ford	16787
16.8 cm	18 Jul 1988	Upstream Calthorpe Ford	16787
15.8 cm	18 Jul 1988	Upstream Calthorpe Ford	16787
15.6 cm	18 Jul 1988	Upstream Calthorpe Ford	16787

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
Hanworth North bridge	27 Nov 2002	27 Nov 2002	1
Metton Bridge	20 Nov 2002	20 Nov 2002	1
Downstream Calthorpe Bridge	15 Jul 1988	29 Apr 1994	3
Upstream Calthorpe Ford	18 Jul 1988	26 Apr 1994	3

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

1988–2002

Survey records by year

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

288

089

090

291

092

093

294

095

096

097

098

099

000

001

202

Fish measured by surveyors

Measured length distribution

See how the 35 measured fish were spread across different length ranges.

Smallest: 9.6 cm
Lower quarter: 10.9 cm
Median: 14 cm
Upper quarter: 15.7 cm
Largest: 22.5 cm

0–99 mm

100–199 mm

200–299 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 5 perch. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0.4 oz (0.012 kg)
Lower quarter: 0.5 oz (0.014 kg)
Median: 0.5 oz (0.015 kg)
Upper quarter: 0.6 oz (0.016 kg)
Heaviest: 0.6 oz (0.016 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the Scarrow Beck

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

3-spined stickleback Brown / sea trout Stone loach

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 →