RiverFish

Tench · Tinca tinca

Tench in the Grantham Canal

Largest measured tench: 47 cm

The largest tench measured in Environment Agency surveys of the Grantham Canal was 47 cm, recorded at Earlsfield Road on 28 April 1997.

Across 236 measured tench, the median measured length was 35.4 cm.

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

See tench records across England →

Most recent observation28 April 1997Earlsfield Road · 20 fish
Largest measured tench
47 cm
Median length
35.4 cm
Fish measured
236
Survey locations
5

Individual EA measurements

Largest measured tench

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

LengthSurvey dateSurvey locationSurvey ID
47 cm28 Apr 1997Earlsfield Road53373
46 cm23 May 1985Casthorpe Bridge53064
45.6 cm22 May 1985Denton Wharf53066
45.4 cm5 May 1988Denton Road Bridge53160
44.9 cm23 May 1985Casthorpe Bridge53064
44.8 cm28 Apr 1997Earlsfield Road53373
44.8 cm5 May 1988Denton Road Bridge53160
44.6 cm18 Apr 1997Denton Wharf53371
44.6 cm22 May 1985Denton Wharf53066
44.5 cm28 Apr 1997Earlsfield Road53373

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where tench were found

Each point marks a survey location with at least one tench 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 tench
Earlsfield Road4 May 198828 Apr 19972
Harlaxton Bridge16 Apr 199122 Apr 19972
Denton Wharf22 May 198518 Apr 19973
Denton Road Bridge20 May 198517 Apr 19974
Casthorpe Bridge23 May 198516 Apr 19973

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

1985–1997

Survey records by year

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

Fish measured by surveyors

Measured length distribution

See how the 236 measured fish were spread across different length ranges.

Smallest
5.3 cm
Lower quarter
27.1 cm
Median
35.4 cm
Upper quarter
38.7 cm
Largest
47 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Grantham Canal

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

Pike Perch Roach Common bream Rudd

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 →