Stone loach · Barbatula barbatula

Stone loach in the River Middle Ouse

Largest measured stone loach: 8 cm

The largest stone loach measured in Environment Agency surveys of the River Middle Ouse was 8 cm, recorded at Hemingford Grey on 28 August 2003.

Across 3 measured stone loach, the median measured length was 6.8 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 Middle Ouse.

See stone loach records across England →

Most recent observation20 August 2015St Neots Common · 1 fish

Largest measured stone loach: 8 cm
Median length: 6.8 cm
Fish measured: 3
Survey locations: 6

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
8 cm	28 Aug 2003	Hemingford Grey	76969
6.8 cm	20 Aug 2015	St Neots Common	145986
4 cm	26 Jul 2006	Portholme Meadow	100286

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
St Neots Common	20 Aug 2015	20 Aug 2015	1
Pike & Eel	5 Nov 2009	10 Sept 2010	2
Portholme Meadow	26 Jul 2006	19 Aug 2010	2
Hartford Church	27 Oct 2009	27 Oct 2009	1
Hermitage Lock Drain (Eel Monitoring)	25 Apr 2007	25 Apr 2007	1
Hemingford Grey	28 Aug 2003	28 Aug 2003	1

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

2003–2015

Survey records by year

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

103

004

005

106

107

008

209

210

011

012

013

014

115

Fish measured by surveyors

Measured length distribution

See how the 3 measured fish were spread across different length ranges.

Smallest: 4 cm
Lower quarter: 5.4 cm
Median: 6.8 cm
Upper quarter: 7.4 cm
Largest: 8 cm

0–99 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Middle Ouse

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

Perch Roach Pike Bleak Gudgeon Common bream

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 →