RiverFish

Tench · Tinca tinca

Tench in the River Ouzel

Largest measured tench: 46 cm

The largest tench measured in Environment Agency surveys of the River Ouzel was 46 cm, recorded at Castle Meadow on 3 May 2007.

Across 44 measured tench, the median measured length was 24.3 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 Ouzel.

See tench records across England →

Most recent observation16 April 2026DS Caldecote Mill · 1 fish
Largest measured tench
46 cm
Median length
24.3 cm
Fish measured
44
Survey locations
9

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
46 cm3 May 2007Castle Meadow105262
44.8 cm29 Jan 1998Castle Meadow29065
44.8 cm5 Jan 1995M1 Road Bridge29055
43 cm3 May 2007Castle Meadow105262
40.3 cm29 Jan 1998Castle Meadow29065
39.3 cm4 Dec 1997M1 Road Bridge29062
38 cm30 Apr 2002Leighton Buzzard50763
37.8 cm4 Dec 1997M1 Road Bridge29062
36.3 cm3 Dec 1997Simpson Ouzel29060
36 cm29 Mar 2004Simpson Ouzel79552

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
DS Caldecote Mill17 Jun 201316 Apr 20262
Leighton Buzzard16 Nov 19903 Jun 201310
Castle Meadow29 Jan 199830 Apr 20099
Caldecote Mill28 Apr 200322 May 20073
Manor Sports Field12 Nov 199016 Apr 20072
Open University23 Mar 200523 Mar 20051
Newport Pagnell28 Jan 199813 Apr 20042
Simpson Ouzel3 Dec 199729 Mar 20042
M1 Road Bridge8 Nov 19904 Dec 19973

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

1990–2026

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 44 measured fish were spread across different length ranges.

Smallest
7.5 cm
Lower quarter
13.3 cm
Median
24.3 cm
Upper quarter
34 cm
Largest
46 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Ouzel

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

Gudgeon Perch Roach Dace Bullhead Minnow

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 →