Stone loach · Barbatula barbatula

Stone loach in the Lowthorpe Beck / Fosten Beck / Kelk Beck

Largest measured stone loach: 9.1 cm

The largest stone loach measured in Environment Agency surveys of the Lowthorpe Beck / Fosten Beck / Kelk Beck was 9.1 cm, recorded at Foston Beck HULLCRS/(UPPER)2(2002) on 25 October 2006.

Across 5 measured stone loach, the median measured length was 8.4 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the Lowthorpe Beck / Fosten Beck / Kelk Beck.

See stone loach records across England →

Most recent observation30 September 2025Foston Beck HULLCRS/(UPPER)2(2002)

Largest measured stone loach: 9.1 cm
Median length: 8.4 cm
Fish measured: 5
Survey locations: 1

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.

Length	Survey date	Survey location	Survey ID
9.1 cm	25 Oct 2006	Foston Beck HULLCRS/(UPPER)2(2002)	102362
9 cm	25 Oct 2006	Foston Beck HULLCRS/(UPPER)2(2002)	102362
8.4 cm	25 Oct 2006	Foston Beck HULLCRS/(UPPER)2(2002)	102362
7 cm	26 Sept 2013	Foston Beck HULLCRS/(UPPER)2(2002)	138916
6.6 cm	26 Sept 2013	Foston Beck HULLCRS/(UPPER)2(2002)	138916

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 surveyed	First recorded	Last recorded	Visits finding stone loach
Foston Beck HULLCRS/(UPPER)2(2002)	9 Oct 2001	30 Sept 2025	6

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

2001–2025

Survey records by year

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

101

102

103

004

005

106

007

008

009

010

011

012

113

014

015

016

017

018

019

020

021

022

023

024

125

Fish measured by surveyors

Measured length distribution

See how the 5 measured fish were spread across different length ranges.

Smallest: 6.6 cm
Lower quarter: 7 cm
Median: 8.4 cm
Upper quarter: 9 cm
Largest: 9.1 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Lowthorpe Beck / Fosten Beck / Kelk Beck

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

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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 →