Stone loach · Barbatula barbatula

Stone loach in the Hammer Stream

Largest measured stone loach: 10.5 cm

The largest stone loach measured in Environment Agency surveys of the Hammer Stream was 10.5 cm, recorded at Milland on 4 July 2006.

Across 27 measured stone loach, the median measured length was 8 cm.

Surveyors recorded weights for 27 stone loach. The median was 0.1 oz (0.004 kg) and the largest recorded weight was 0.3 oz (0.008 kg).

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the Hammer Stream.

See stone loach records across England →

Most recent observation29 July 2014D/s Hammer Pond · 14 fish

Largest measured stone loach: 10.5 cm
Median length: 8 cm
Fish measured: 27
Survey locations: 2

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
10.5 cm	4 Jul 2006	Milland	101928
9.9 cm	4 Jul 2006	Milland	101928
9.9 cm	4 Jul 2006	Milland	101928
9.1 cm	4 Jul 2006	Milland	101928
8.9 cm	4 Jul 2006	Milland	101928
8.8 cm	4 Jul 2006	Milland	101928
8.7 cm	4 Jul 2006	Milland	101928
8.5 cm	4 Jul 2006	Milland	101928
8.5 cm	4 Jul 2006	Milland	101928
8.5 cm	4 Jul 2006	Milland	101928

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
Milland	4 Jul 2006	29 Jul 2014	2
D/s Hammer Pond	19 Sept 2001	29 Jul 2014	3

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

2001–2014

Survey records by year

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

101

002

003

004

005

106

007

108

009

010

011

012

013

214

Fish measured by surveyors

Measured length distribution

See how the 27 measured fish were spread across different length ranges.

Smallest: 4.7 cm
Lower quarter: 5.8 cm
Median: 8 cm
Upper quarter: 8.6 cm
Largest: 10.5 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 27 stone loach. This is a subset of the measured fish and may not represent the whole population.

Lightest: 0 oz (0.001 kg)
Lower quarter: 0.1 oz (0.002 kg)
Median: 0.1 oz (0.004 kg)
Upper quarter: 0.2 oz (0.0055 kg)
Heaviest: 0.3 oz (0.008 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the Hammer Stream

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

Bullhead Perch

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 →