RiverFish

Tench · Tinca tinca

Tench in the River Wensum (central)

Largest measured tench: 56.7 cm

The largest tench measured in Environment Agency surveys of the River Wensum (central) was 56.7 cm, recorded at Upstream Lenwade Mill on 22 September 2009.

Across 119 measured tench, the median measured length was 23.1 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 Wensum (central).

See tench records across England →

Most recent observation7 August 2025Downstream Elsing Mill · 2 fish
Largest measured tench
56.7 cm
Median length
23.1 cm
Fish measured
119
Survey locations
21

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
56.7 cm22 Sept 2009Upstream Lenwade Mill119064
49.4 cm22 Aug 1990Downstream Point Costessey17269
47.8 cm8 Jul 1997Downstream Broken Bridges17357
47.5 cm19 Jul 1994Pinewood17317
46.9 cm1 Aug 1994Downstream Point Costessey17319
46.5 cm2 Oct 2009Swanton Morley119284
46.5 cm24 Jul 1997Costessey Pits17352
46 cm7 Jul 1997Upstream Drayton Green Lane17358
46 cm3 Aug 1994Blakes Meadow17320
45 cm13 Jul 1994Swan Rescue17318

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
Downstream Elsing Mill20 Sept 20057 Aug 20254
Downstream Gt Ryburgh Bridge9 Aug 20181 Aug 20253
Upstream Bintree Mill29 Sept 200323 Jul 20243
Hellesdon Road (Albert's)4 Aug 19975 Oct 20236
Alders Spinney5 Sept 20078 Sept 20224
Swanton Morley6 May 19975 Aug 20223
Sparham pool, Lyng31 Oct 201931 Oct 20191
Upstream Lenwade Mill1 Oct 200311 Sept 20186
Upstream Drayton Green Lane30 Jul 19868 Oct 20094
Lyng Pits1 Oct 20091 Oct 20091
Downstream Billingford Bridge7 Oct 20047 Oct 20041
Edwards & Holmes Yard6 Aug 19976 Aug 19971
Heigham Waterworks5 Aug 19975 Aug 19971
Costessey Pits24 Jul 199724 Jul 19971
Downstream Broken Bridges29 Jul 19868 Jul 19974
Walcis Farm6 Jun 19976 Jun 19971
Swan Rescue13 Jul 19945 Jun 19972
Blakes Meadow17 Jul 19863 Aug 19942
Downstream Point Costessey28 Jul 19861 Aug 19943
Pinewood19 Jul 199419 Jul 19941
Downstream Ringland Bridge10 Jul 198610 Jul 19861

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

1986–2025

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 119 measured fish were spread across different length ranges.

Smallest
3.8 cm
Lower quarter
15.6 cm
Median
23.1 cm
Upper quarter
40.1 cm
Largest
56.7 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Wensum (central)

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

Pike Dace Roach European eel Perch Gudgeon

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 →