RiverFish

Stone loach · Barbatula barbatula

Stone loach in the River Coquet

Largest measured stone loach: 10.5 cm

The largest stone loach measured in Environment Agency surveys of the River Coquet was 10.5 cm, recorded at Low Alwinton on 2 August 2009.

Across 72 measured stone loach, the median measured length was 7.8 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 Coquet.

See stone loach records across England →

Most recent observation17 June 2026Low Alwinton
Largest measured stone loach
10.5 cm
Median length
7.8 cm
Fish measured
72
Survey locations
39

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
10.5 cm2 Aug 2009Low Alwinton119857
10.4 cm2 Aug 2009Low Alwinton119857
10 cm2 Aug 2009Low Alwinton119857
9.9 cm2 Aug 2009Low Alwinton119857
9.8 cm2 Aug 2009Low Alwinton119857
9.5 cm2 Aug 2009Low Alwinton119857
9.3 cm19 Jun 2007River Coquet at Pauperhaugh107315
9 cm19 Jun 2007River Coquet at Pauperhaugh107315
8.9 cm16 Aug 2007Grasslees Burn at Picnic Site107313
8.6 cm2 Aug 2009Low Alwinton119857

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
Low Alwinton25 Aug 199317 Jun 202613
River Coquet at Pauperhaugh24 Aug 199316 Jun 202612
River Alwin9 Sept 199724 Jun 20254
Grasslees Burn25 Aug 199324 Jun 20254
Rothbury Car Park1 Sept 199329 Jun 202212
River Coquet at Elyhaugh23 Aug 19938 Jul 201915
Hazon Burn24 Jul 20109 Sept 20163
River Coquet at Felton2 Oct 19965 Sept 20155
Swarland Burn 212 Sept 19954 Sept 20153
Newton Burn at Lowsteads Farm4 Sept 20154 Sept 20151
Mere Burn17 Jul 20104 Sept 20152
Hepple Bridge15 Jul 20022 Sept 20156
Forest Burn8 Sept 199325 Aug 20156
Holystone burn13 Sept 199524 Aug 20154
River Coquet at Wagtail Farm24 Aug 200614 Aug 20132
Swarland Burn16 Aug 199313 Jul 20132
Todd Burn1 Sept 200613 Aug 20102
Longdike Burn at Eschotthaugh31 Aug 200624 Jul 20102
Debdon Burn4 Oct 200624 Jul 20102
Black Burn24 Jul 201024 Jul 20101
Grasslees Burn at Picnic Site16 Aug 200723 Jul 20102
Grasslees Burn 37 Oct 20067 Oct 20061
Usway Burn 21 Oct 20061 Oct 20061
Grasslees Burn 41 Oct 20061 Oct 20061
River Coquet at Linbriggs30 Sept 200630 Sept 20061
River Coquet at Harbottle30 Sept 200630 Sept 20061
River Coquet at Felton Village30 Sept 200630 Sept 20061
River Coquet at Brinkburn Piory23 Aug 199328 Sept 20064
River Coquet at Newton22 Sept 200622 Sept 20061
Coquet at Rothbury Golf Club22 Sept 200622 Sept 20061
Longdike Burn near Causey Farm31 Aug 200631 Aug 20061
Swarland Burn 317 Aug 199329 Aug 20062
River Coquet at Sharperton25 Aug 200625 Aug 20061
River Coquet at Caistron25 Sept 199325 Aug 20063
Netherton Burn, Burnfoot2 Sept 199324 Aug 20062
Thirston Burn at Felton (WFD Site)22 Sept 200522 Sept 20051
River Coquet at High Weldon10 Sept 199710 Sept 19971
Thirston Burn 225 Sept 199625 Sept 19961
Thirston Burn25 Sept 199625 Sept 19961

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 72 measured fish were spread across different length ranges.

Smallest
2.8 cm
Lower quarter
7.4 cm
Median
7.8 cm
Upper quarter
8.4 cm
Largest
10.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Coquet

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

Brown / sea trout Atlantic salmon Minnow European eel 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 →