Stone loach · Barbatula barbatula

Stone loach in the Canons Brook

Largest measured stone loach: 12 cm

The largest stone loach measured in Environment Agency surveys of the Canons Brook was 12 cm, recorded at Little Parndon on 8 April 2011.

Across 25 measured stone loach, the median measured length was 10.5 cm.

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

See stone loach records across England →

Most recent observation18 April 2024Roydon Lea Farm

Largest measured stone loach: 12 cm
Median length: 10.5 cm
Fish measured: 25
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
12 cm	8 Apr 2011	Little Parndon	126120
11.9 cm	8 Apr 2011	Little Parndon	126120
11.1 cm	8 Apr 2011	Little Parndon	126120
11.1 cm	8 Apr 2011	Little Parndon	126120
11 cm	8 Apr 2011	Little Parndon	126120
11 cm	8 Apr 2011	Little Parndon	126120
10.9 cm	8 Apr 2011	Little Parndon	126120
10.8 cm	8 Apr 2011	Little Parndon	126120
10.8 cm	8 Apr 2011	Little Parndon	126120
10.7 cm	8 Apr 2011	Little Parndon	126120

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
Roydon Lea Farm	3 Apr 2014	18 Apr 2024	2
Little Parndon	8 Apr 2011	16 Apr 2024	3

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

2011–2024

Survey records by year

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

111

012

013

214

015

016

017

018

019

020

021

022

023

224

Fish measured by surveyors

Measured length distribution

See how the 25 measured fish were spread across different length ranges.

Smallest: 5 cm
Lower quarter: 10.3 cm
Median: 10.5 cm
Upper quarter: 10.9 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 Canons Brook

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

3-spined stickleback

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 →