RiverFish

Perch · Perca fluviatilis

Perch in the Jubilee River

Largest measured perch: 18.6 cm

The largest perch measured in Environment Agency surveys of the Jubilee River was 18.6 cm, recorded at Upstream of Slough Weir on 25 August 2005.

Across 4,254 measured perch, the median measured length was 7.7 cm.

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

See perch records across England →

Most recent observation23 August 2013Upstream of Slough Weir · 32 fish
Largest measured perch
18.6 cm
Median length
7.7 cm
Fish measured
4,254
Survey locations
6

Individual EA measurements

Largest measured perch

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
18.6 cm25 Aug 2005Upstream of Slough Weir90922
18.3 cm26 Aug 2009Upstream of Slough Weir118861
17.2 cm23 Aug 2005Conservation Section No 1 (DS)90849
17.1 cm19 Aug 2003Conservation Section No 2 (US)79280
16.1 cm22 Aug 2013Black Potts138214
15.7 cm23 Aug 2013Upstream of Slough Weir138212
15.7 cm24 Aug 2005Eton Far Shore90920
15.2 cm24 Aug 2010Eton Far Shore123612
15.2 cm23 Aug 2010Conservation Section No 2 (US)123606
14.7 cm19 Aug 2003Conservation Section No 2 (US)79280

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 surveyedFirst recordedLast recordedVisits finding perch
Upstream of Slough Weir3 Sept 200423 Aug 20137
Taplow26 Sept 200223 Aug 20138
Eton Far Shore25 Sept 200222 Aug 20139
Black Potts19 Jul 200522 Aug 20135
Conservation Section No 2 (US)19 Aug 200321 Aug 20139
Conservation Section No 1 (DS)26 Sept 200221 Aug 20139

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

2002–2013

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 4,254 measured fish were spread across different length ranges.

Smallest
2.4 cm
Lower quarter
6.5 cm
Median
7.7 cm
Upper quarter
8.6 cm
Largest
18.6 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Jubilee River

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

3-spined stickleback Gudgeon Stone loach Roach 10-spined stickleback 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 →