RiverFish

Stone loach · Barbatula barbatula

Stone loach in the River Nar

Largest measured stone loach: 12.3 cm

The largest stone loach measured in Environment Agency surveys of the River Nar was 12.3 cm, recorded at West Lexham on 18 January 1996.

Across 122 measured stone loach, the median measured length was 8.8 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 Nar.

See stone loach records across England →

Most recent observation3 March 2026West Lexham · 1 fish
Largest measured stone loach
12.3 cm
Median length
8.8 cm
Fish measured
122
Survey locations
13

Individual EA measurements

Largest measured stone loach

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

LengthSurvey dateSurvey locationSurvey ID
12.3 cm18 Jan 1996West Lexham30350
12.1 cm9 Mar 2015West Lexham144450
12 cm11 Mar 2025West Lexham175930
11.7 cm9 Mar 2015West Lexham144450
11.5 cm9 Mar 2015West Lexham144450
11.2 cm9 Mar 2015West Lexham144450
11.2 cm9 Mar 2015West Lexham144450
11.1 cm3 Mar 2026West Lexham180671
11.1 cm9 Mar 2015West Lexham144450
11.1 cm12 Mar 2012West Lexham130154

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

Explore the river

Where stone loach were found

Each point marks a survey location with at least one stone loach 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 stone loach
West Lexham9 Nov 19893 Mar 202611
DS Narborough Mill1 Apr 20251 Apr 20251
Wormegay High Bridge20 Apr 201021 Mar 20173
Abbey Farm18 Mar 199320 Mar 20174
Marham Intake24 Mar 199314 Mar 20175
DS Marham Sluice14 Mar 201714 Mar 20171
Saddlebow19 Apr 201026 Mar 20152
Mileham (New Channel)2 Oct 20132 Oct 20131
Mileham (Old Channel)18 Sept 201218 Sept 20121
East Lexham11 Mar 200312 Mar 20124
High Bridge Side Channel22 Apr 201022 Apr 20101
Setchey7 Feb 199625 Mar 20042
US Sluice Kings Lynn10 Apr 199610 Apr 19961

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

1989–2026

Survey records by year

Each bar shows how many survey visits recorded stone loach that year.

Fish measured by surveyors

Measured length distribution

See how the 122 measured fish were spread across different length ranges.

Smallest
4.1 cm
Lower quarter
7.6 cm
Median
8.8 cm
Upper quarter
9.5 cm
Largest
12.3 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Nar

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

European eel Bullhead 3-spined stickleback Brown / sea trout 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 →