RiverFish

Stone loach · Barbatula barbatula

Stone loach in the River Aln

Largest measured stone loach: 12 cm

The largest stone loach measured in Environment Agency surveys of the River Aln was 12 cm, recorded at Eglingham Burn at Shipley on 1 August 2009.

Across 25 measured stone loach, the median measured length was 8.5 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 Aln.

See stone loach records across England →

Most recent observation23 June 2026River Aln at Lady's Well
Largest measured stone loach
12 cm
Median length
8.5 cm
Fish measured
25
Survey locations
30

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 cm1 Aug 2009Eglingham Burn at Shipley119676
12 cm26 Aug 2008Eglingham Burn at Shipley115035
11.1 cm1 Aug 2009Eglingham Burn at Shipley119676
11.1 cm26 Sept 2008River Aln at Hulne Park115497
11.1 cm26 Aug 2008Eglingham Burn at Shipley115035
9.5 cm22 Jun 2007Eglingham Burn at Shipley107283
9.3 cm26 Aug 2008Eglingham Burn at Shipley115035
9.2 cm1 Aug 2009Eglingham Burn at Shipley119676
9.2 cm26 Sept 2008River Aln at Hulne Park115497
9 cm26 Sept 2008River Aln at Hulne Park115497

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
River Aln at Lady's Well22 Sept 199323 Jun 202624
River Aln at Bolton Mill23 Sept 199323 Jun 202620
Eglingham Burn at Shipley31 Jul 200623 Jun 202616
Edlingham Burn at Battle Bridge29 Sept 199523 Jun 202621
Cawledge Burn site #22 Aug 200116 Jul 20245
Titlington burn8 Jul 20248 Jul 20241
Denwick Burn12 Oct 20018 Jul 20243
River Aln at Old Hawkhill Ford9 Sept 19963 Jul 20249
River Aln at Abberwick Mill.6 Aug 20011 Jul 20244
River Aln at Abberwick Ford20 Sept 19931 Jul 20244
River Aln at Whittingham16 Sept 199625 Jun 20243
River Aln at Bridge of Aln22 Sept 199325 Jun 20247
Coe Burn caravan park12 Oct 200125 Jun 20242
Coe Burn14 Jul 200525 Jun 20243
Callally Burn at Whittingham7 Oct 199724 Jun 20244
Shipley burn at Aln Confluence8 Aug 20013 Jul 20194
River Aln Upstream of Whittingham Ford23 Sept 19932 Jul 20195
Coe Burn at Low Broome Park20 Jul 20052 Jul 20192
Edlingham Burn at Bannermoor18 Jul 200514 Sept 20153
River Aln at Hulne Priory5 Aug 200816 Sept 20142
River Aln at Little Ryle6 Oct 199511 Sept 20142
Aln at Bridge End18 Sept 201218 Sept 20121
Cawledge Burn17 Sept 201217 Sept 20121
Edlingham Burn1 Oct 199713 Sept 20123
Edlingham Burn at Lemmington3 Aug 20123 Aug 20121
River Aln at Hulne Park26 Sept 200826 Sept 20081
River Aln at Filberthaugh21 Sept 199310 Jul 20067
Shipley Burn29 Sept 199512 Jul 20053
River Aln at Lesbury20 Sept 19938 Aug 20012
Cawledge Burn, Rugley Wood6 Oct 19956 Oct 19951

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

1993–2026

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 25 measured fish were spread across different length ranges.

Smallest
3.5 cm
Lower quarter
6.4 cm
Median
8.5 cm
Upper quarter
9.3 cm
Largest
12 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Aln

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

Brown / sea trout European eel Atlantic salmon Minnow 3-spined stickleback River lamprey

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 →