Perch · Perca fluviatilis

Perch in the Sincil Dyke

Largest measured perch: 35.1 cm

The largest perch measured in Environment Agency surveys of the Sincil Dyke was 35.1 cm, recorded at Washingborough on 12 July 2004.

Across 1,880 measured perch, the median measured length was 9 cm.

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

See perch records across England →

Most recent observation5 May 2017Downstream Branston Delph outfall · 20 fish

Largest measured perch: 35.1 cm
Median length: 9 cm
Fish measured: 1,880
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.

Length	Survey date	Survey location	Survey ID
35.1 cm	12 Jul 2004	Washingborough	81121
34.7 cm	12 Jul 2004	Washingborough	81121
31.9 cm	12 Jul 2004	Washingborough	81121
31.6 cm	12 Jul 2004	Washingborough	81121
29.5 cm	12 Jul 2004	Washingborough	81121
28.6 cm	12 Jul 2004	Washingborough	81121
28.1 cm	5 Aug 1998	Washingborough	53410
26.7 cm	12 Jul 2004	Washingborough	81121
26.6 cm	5 Aug 1998	Washingborough	53410
25 cm	4 Oct 2000	Washingborough	59026

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
Downstream Branston Delph outfall	5 May 2017	5 May 2017	1
Washingborough	17 May 1988	27 Sept 2007	6
Bardney Locks	22 Apr 1985	27 Sept 2007	7
Five Mile House	24 Apr 1985	16 Aug 2005	7
Lincoln Football Ground	19 Aug 1985	23 Jul 1998	4
Boundary Farm	23 Apr 1985	21 Jul 1998	3

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

1985–2017

Survey records by year

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

485

086

087

488

089

090

091

092

093

594

095

096

097

598

099

300

001

002

003

304

105

006

207

008

009

010

011

012

013

014

015

016

117

Fish measured by surveyors

Measured length distribution

See how the 1,880 measured fish were spread across different length ranges.

Smallest: 4.1 cm
Lower quarter: 7.1 cm
Median: 9 cm
Upper quarter: 10.8 cm
Largest: 35.1 cm

0–99 mm

1235

100–199 mm

616

200–299 mm

300–399 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Sincil Dyke

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

Roach Common bream Pike Dace Gudgeon Silver bream

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 →