RiverFish

Perch · Perca fluviatilis

Perch in the River Witham

Largest measured perch: 39.8 cm

The largest perch measured in Environment Agency surveys of the River Witham was 39.8 cm, recorded at Tattershall Bridge (Witham) on 4 June 2014.

Across 17,279 measured perch, the median measured length was 7.2 cm.

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

See perch records across England →

Most recent observation12 November 2025Belton Park - DS Habitat Site · 2 fish
Largest measured perch
39.8 cm
Median length
7.2 cm
Fish measured
17,279
Survey locations
39

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
39.8 cm4 Jun 2014Tattershall Bridge (Witham)141608
38.6 cm23 Jun 1998Tattershall Bridge (Witham)53403
38.3 cm16 Apr 2009Upstream Foston Ford117198
38.1 cm20 Jul 2006Short Ferry (Witham)100229
37.6 cm8 Apr 2008Upstream Foston Ford110826
37.2 cm8 Apr 2008Upstream Foston Ford110826
36.8 cm2 Sept 2011Marston Bridge128423
36.8 cm23 Jun 1998Tattershall Bridge (Witham)53403
36.5 cm17 May 2011Upstream Foston Ford128449
36.4 cm25 Apr 2017Upstream Foston Ford150555

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
Belton Park - DS Habitat Site12 Nov 202512 Nov 20251
Haddington Bridge16 Aug 198523 Aug 202316
Sleeper Bridge (Witham)6 Sept 19855 Sept 201715
Upstream Bracebridge Bridge24 Oct 198510 May 201717
Upstream Beckingham Bridge27 Apr 20063 May 20175
Upstream Foston Ford5 Sept 198525 Apr 201714
Upstream Syston Weir26 Sept 198511 Sept 20144
Marston Bridge16 Sept 19859 Sept 20145
Paper Mill16 May 19913 Sept 20148
Ex Power Station (Witham)1 Jul 198519 Jun 201414
Tattershall Bridge (Witham)15 Jul 19854 Jun 201415
Claypole Bridge9 Sept 199714 May 20143
Hougham Mill29 Aug 19852 Sept 20113
Kirks Farm R/B (Witham)22 Jul 198527 Jul 200611
Pelhams Land R/B (Witham)18 Jul 198526 Jul 20069
Short Ferry (Witham)4 Jul 198520 Jul 20068
Five Mile House Bridge (Witham)3 Jul 198518 Jul 20068
Kirkstead Bridge (Witham)10 Jul 198512 Jul 200610
Tunnard Farm (Witham)8 Aug 198829 Jun 20003
Chapel Hill (Witham)24 Jul 198521 Jun 20006
Thorpe Tilney Road (Witham)11 Jul 198515 Jun 20006
Stixwould (Witham)9 Jul 198513 Jun 20005
Beech House Farm L/B (Witham)17 Jul 198530 Jun 19985
Southrey (Witham)8 Jul 198511 Jun 19985
Downstream R/B Beet Factory (Witham)25 Jul 198510 Jun 19985
Upstream R/B Bardney Bridge (Witham)21 Jul 19889 Jun 19983
Greetwell Hall (Witham)2 Jul 19852 Jun 19985
Dixon Street25 Oct 198524 Sept 19974
North Hykeham Bridge23 Oct 198518 Sept 19975
Blackmoor Farm Witham17 Sept 199717 Sept 19971
Dry Doddington4 Oct 198511 Jul 19974
A607 Road Bridge28 Aug 198527 May 19973
Bassingham Upstream Bridge23 Jul 199123 Jul 19911
Stapleford22 Jul 199122 Jul 19911
North Witham18 Jun 199118 Jun 19911
Marston Mill21 May 199121 May 19911
Barkston Bridge25 Sept 19857 Mar 19882
Upstream Elinors Weir23 Sept 19851 Mar 19882
Hougham Mill - Marston Mill4 Sept 19854 Sept 19851

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

1985–2025

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 17,279 measured fish were spread across different length ranges.

Smallest
1.3 cm
Lower quarter
6.1 cm
Median
7.2 cm
Upper quarter
9.9 cm
Largest
39.8 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Witham

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

Dace Roach Gudgeon European eel Pike 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 →