RiverFish

Stone loach · Barbatula barbatula

Stone loach in the River Alde (Main Reaches)

Largest measured stone loach: 12.9 cm

The largest stone loach measured in Environment Agency surveys of the River Alde (Main Reaches) was 12.9 cm, recorded at Upstream Langham Bridge on 25 March 2003.

Across 120 measured stone loach, the median measured length was 8.3 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 Alde (Main Reaches).

See stone loach records across England →

Most recent observation14 May 2024Upstream Farnham Bridge · 2 fish
Largest measured stone loach
12.9 cm
Median length
8.3 cm
Fish measured
120
Survey locations
5

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
12.9 cm25 Mar 2003Upstream Langham Bridge79271
12.5 cm26 Mar 2003Upstream Farnham Bridge79273
12.3 cm25 Mar 2003Upstream Langham Bridge79271
12.1 cm25 Mar 2003Upstream Langham Bridge79271
12.1 cm25 Mar 2003Upstream Langham Bridge79271
12 cm25 Mar 2003Upstream Langham Bridge79271
12 cm25 Mar 2003Upstream Langham Bridge79271
11.9 cm25 Mar 2003Upstream Langham Bridge79271
11.8 cm25 Mar 2003Upstream Langham Bridge79271
11.7 cm9 May 2024Upstream Langham Bridge166558

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
Upstream Farnham Bridge3 Nov 198714 May 20245
Upstream Langham Bridge6 Nov 19879 May 20247
Downstream Benhall Place13 Jun 199127 Jun 19952
Downstream Langham Bridge12 Jun 199512 Jun 19951
Upstream Blaxhall Railway Bridge5 Nov 198719 Jun 19912

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

1987–2024

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 120 measured fish were spread across different length ranges.

Smallest
3.2 cm
Lower quarter
6.3 cm
Median
8.3 cm
Upper quarter
9.8 cm
Largest
12.9 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Alde (Main Reaches)

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

European eel Dace Roach 3-spined stickleback Flounder Chub

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 →