Perch · Perca fluviatilis

Perch in the Hammer Stream

Largest measured perch: 22 cm

The largest perch measured in Environment Agency surveys of the Hammer Stream was 22 cm, recorded at D/s Hammer Pond on 29 July 2014.

Across 52 measured perch, the median measured length was 11.8 cm.

Surveyors recorded weights for 40 perch. The median was 0.8 oz (0.024 kg) and the largest recorded weight was 5.5 oz (0.155 kg).

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

See perch records across England →

Most recent observation29 July 2014D/s Hammer Pond · 5 fish

Largest measured perch: 22 cm
Median length: 11.8 cm
Fish measured: 52
Survey locations: 2

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 cm	29 Jul 2014	D/s Hammer Pond	142059
21.4 cm	29 Jul 2014	D/s Hammer Pond	142059
21.3 cm	29 Jul 2014	Milland	142056
20.8 cm	6 Jun 2008	D/s Hammer Pond	111636
19.5 cm	29 Jul 2014	Milland	142056
19.1 cm	6 Jun 2008	D/s Hammer Pond	111636
18.7 cm	4 Jul 2006	Milland	101928
18.1 cm	4 Jul 2006	Milland	101928
17.8 cm	29 Jul 2014	D/s Hammer Pond	142059
17.5 cm	4 Jul 2006	Milland	101928

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
Milland	4 Jul 2006	29 Jul 2014	2
D/s Hammer Pond	19 Sept 2001	29 Jul 2014	3

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

2001–2014

Survey records by year

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

101

002

003

004

005

106

007

108

009

010

011

012

013

214

Fish measured by surveyors

Measured length distribution

See how the 52 measured fish were spread across different length ranges.

Smallest: 6 cm
Lower quarter: 9 cm
Median: 11.8 cm
Upper quarter: 16.1 cm
Largest: 22 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 40 perch. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0.2 oz (0.007 kg)
Lower quarter: 0.6 oz (0.017 kg)
Median: 0.8 oz (0.024 kg)
Upper quarter: 1.6 oz (0.044 kg)
Heaviest: 5.5 oz (0.155 kg)

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

More fish in this river

Explore the Hammer Stream

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

Bullhead 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 →