Stone loach · Barbatula barbatula

Stone loach in the Richmond Park SERT Baseline

Largest measured stone loach: 12 cm

The largest stone loach measured in Environment Agency surveys of the Richmond Park SERT Baseline was 12 cm, recorded at Richmond Park SERT Reach D on 14 July 2015.

Across 36 measured stone loach, the median measured length was 8.8 cm.

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

See stone loach records across England →

Most recent observation15 July 2015Richmond Park SERT Reach A

Largest measured stone loach: 12 cm
Median length: 8.8 cm
Fish measured: 36
Survey locations: 4

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
12 cm	14 Jul 2015	Richmond Park SERT Reach D	147552
10.4 cm	14 Jul 2015	Richmond Park SERT Reach D	147552
10.2 cm	14 Jul 2015	Richmond Park SERT Reach C	147977
10 cm	14 Jul 2015	Richmond Park SERT Reach D	147552
10 cm	14 Jul 2015	Richmond Park SERT Reach C	147977
10 cm	14 Jul 2015	Richmond Park SERT Reach C	147977
10 cm	14 Jul 2015	Richmond Park SERT Reach C	147977
9.9 cm	14 Jul 2015	Richmond Park SERT Reach D	147552
9.9 cm	14 Jul 2015	Richmond Park SERT Reach C	147977
9.7 cm	14 Jul 2015	Richmond Park SERT Reach C	147977

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
Richmond Park SERT Reach B	15 Jul 2015	15 Jul 2015	1
Richmond Park SERT Reach A	15 Jul 2015	15 Jul 2015	1
Richmond Park SERT Reach D	14 Jul 2015	14 Jul 2015	1
Richmond Park SERT Reach C	14 Jul 2015	14 Jul 2015	1

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

2015–2015

Survey records by year

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

415

Fish measured by surveyors

Measured length distribution

See how the 36 measured fish were spread across different length ranges.

Smallest: 3.8 cm
Lower quarter: 5.3 cm
Median: 8.8 cm
Upper quarter: 9.8 cm
Largest: 12 cm

0–99 mm

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the Richmond Park SERT Baseline

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

Chub Dace European eel Gudgeon

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 →