RiverFish

Tench · Tinca tinca

Tench in the River Colnebrook

Largest measured tench: 43.5 cm

The largest tench measured in Environment Agency surveys of the River Colnebrook was 43.5 cm, recorded at Wraysbury on 4 June 2024.

Across 10 measured tench, the median measured length was 26.7 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 Colnebrook.

See tench records across England →

Most recent observation2 June 2026Wraysbury · 2 fish
Largest measured tench
43.5 cm
Median length
26.7 cm
Fish measured
10
Survey locations
4

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
43.5 cm4 Jun 2024Wraysbury166010
42 cm12 Jun 2013Hythe End136373
38.6 cm13 Jul 2005Hythe End85049
37.4 cm3 Jun 2025Wraysbury176712
27.1 cm31 May 2016Wraysbury148111
26.3 cm31 May 2016Wraysbury148111
18 cm16 Oct 2001Thorney Golf Course73302
17.4 cm8 Jun 2010Thorney Golf Course121849
17.1 cm2 Jun 2026Wraysbury182113
13.1 cm2 Jun 2026Wraysbury182113

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
Wraysbury31 May 20162 Jun 20264
Hythe End13 Jul 200512 Jun 20132
Thorney Golf Course16 Oct 20018 Jun 20102
Horton Upstream Backloop24 Apr 201024 Apr 20101

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

2001–2026

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 10 measured fish were spread across different length ranges.

Smallest
13.1 cm
Lower quarter
17.6 cm
Median
26.7 cm
Upper quarter
38.3 cm
Largest
43.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Colnebrook

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

European eel Perch Roach Chub Pike 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 →