RiverFish

Perch · Perca fluviatilis

Perch in the Louth Canal

Largest measured perch: 27.7 cm

The largest perch measured in Environment Agency surveys of the Louth Canal was 27.7 cm, recorded at Austen Fen on 5 September 1995.

Across 884 measured perch, the median measured length was 8.9 cm.

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

See perch records across England →

Most recent observation15 May 2018Tetney Lock · 50 fish
Largest measured perch
27.7 cm
Median length
8.9 cm
Fish measured
884
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
27.7 cm5 Sept 1995Austen Fen58044
24.6 cm5 Sept 1995Austen Fen58044
24 cm5 Sept 1995Austen Fen58044
23.6 cm8 Sept 1995Tetney Lock58047
22.7 cm5 Sept 1995Austen Fen58044
21.4 cm24 May 1999Keddington Corner58056
20.9 cm13 May 2010Tetney Lock121712
20.7 cm12 May 2010Firebeacon124151
20.6 cm5 Sept 1995Austen Fen58044
20.4 cm12 May 2010Firebeacon124151

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
Tetney Lock14 Sept 199215 May 20188
Thoresby Bridge10 Sept 199217 Jun 20154
Firebeacon9 Sept 199216 Jun 20157
Keddington Corner24 May 199924 May 19991
Alvingham High Bridge6 Sept 19956 Sept 19951
Austen Fen9 Sept 19925 Sept 19952

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

1992–2018

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 884 measured fish were spread across different length ranges.

Smallest
0.7 cm
Lower quarter
7.6 cm
Median
8.9 cm
Upper quarter
11.1 cm
Largest
27.7 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Louth Canal

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

Roach European eel 3-spined stickleback Gudgeon Pike Dace

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 →