Stone loach · Barbatula barbatula

Stone loach in the River Uck

Largest measured stone loach: 11.5 cm

The largest stone loach measured in Environment Agency surveys of the River Uck was 11.5 cm, recorded at Ridgewood Bridge on 3 September 2003.

Across 620 measured stone loach, the median measured length was 7.7 cm.

Surveyors recorded weights for 267 stone loach. The median was 0.1 oz (0.004 kg) and the largest recorded weight was 0.4 oz (0.012 kg).

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

See stone loach records across England →

Most recent observation14 August 2025Uckfield · 33 fish

Largest measured stone loach: 11.5 cm
Median length: 7.7 cm
Fish measured: 620
Survey locations: 14

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
11.5 cm	3 Sept 2003	Ridgewood Bridge	76922
11 cm	14 Aug 2025	Uckfield	177952
11 cm	1 Aug 2024	Uckfield	166436
10.8 cm	13 Sept 2023	Buxted Bridge	163709
10.8 cm	3 Sept 2003	Ridgewood Bridge	76922
10.7 cm	13 Aug 2025	Buxted Bridge	177956
10.7 cm	3 Sept 2003	Ridgewood Bridge	76922
10.6 cm	1 Sept 2003	Hastingsford Bridge	76925
10.5 cm	2 Sept 2003	Owlsbury Farm	76920
10.4 cm	3 Sept 2003	Ridgewood Bridge	76922

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
Uckfield	20 Aug 2015	14 Aug 2025	8
Buxted Bridge	20 Aug 2003	13 Aug 2025	12
Stroodland Wood	9 Sept 2014	7 Aug 2025	2
Isfield Weir	23 Aug 2002	7 Aug 2025	7
Framfield Stream, Arches Farm	20 Aug 2015	6 Aug 2025	2
Upstream Isfield Gate	10 Oct 2019	14 Jul 2023	2
Tickerage Castle	21 Aug 2012	12 Sept 2018	3
Honey Green Caravan Park	8 Aug 2013	17 Aug 2015	2
Hastingsford Bridge	1 Sept 2003	30 Apr 2013	2
Buxted Weir	8 Sept 2011	8 Sept 2011	1
Great Streele	20 Aug 2003	27 Oct 2009	2
Owlsbury Farm	2 Sept 2003	5 Sept 2007	5
Ridgewood Bridge	3 Sept 2003	3 Sept 2003	1
Lephams Bridge	3 Sept 2003	3 Sept 2003	1

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

2002–2025

Survey records by year

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

102

703

204

205

206

207

008

209

010

211

212

313

114

515

016

217

318

319

020

121

022

323

224

525

Fish measured by surveyors

Measured length distribution

See how the 620 measured fish were spread across different length ranges.

Smallest: 2.4 cm
Lower quarter: 6.8 cm
Median: 7.7 cm
Upper quarter: 8.5 cm
Largest: 11.5 cm

0–99 mm

604

100–199 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 267 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 (0.003 kg)
Median: 0.1 oz (0.004 kg)
Upper quarter: 0.2 oz (0.005 kg)
Heaviest: 0.4 oz (0.012 kg)

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

More fish in this river

Explore the River Uck

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

Minnow Roach Bullhead Gudgeon Chub Brown / sea trout

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 →