Barbel · Barbus barbus

Barbel in the River Nidd

Largest measured barbel: 70.1 cm

The largest barbel measured in Environment Agency surveys of the River Nidd was 70.1 cm, recorded at Kirk Hammerton on 8 July 2011.

Across 606 measured barbel, the median measured length was 4.4 cm.

Surveyors recorded weights for 9 barbel. The median was 3 lb 12.7 oz (1.72 kg) and the largest recorded weight was 4 lb 15.7 oz (2.26 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 Nidd.

See barbel records across England →

Most recent observation17 July 2025Moor Monkton · 1 fish

Largest measured barbel: 70.1 cm
Median length: 4.4 cm
Fish measured: 606
Survey locations: 10

Individual EA measurements

Largest measured barbel

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
70.1 cm	8 Jul 2011	Kirk Hammerton	127089
65.5 cm	18 Jul 2014	Nun Monkton	141763
64.4 cm	10 Jul 2014	Cowthorpe	141648
63 cm	21 Aug 2002	Kirk Hammerton	68921
62.5 cm	8 Jul 2011	Kirk Hammerton	127089
62 cm	20 Jun 2013	Nun Monkton	136530
59.9 cm	12 Jul 2010	Kirk Hammerton	122956
58.6 cm	10 Jul 2014	Cowthorpe	141648
58.5 cm	21 Aug 2002	Kirk Hammerton	68921
58.2 cm	29 Jun 2015	Cowthorpe	145308

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where barbel were found

Each point marks a survey location with at least one barbel 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 barbel
Moor Monkton	27 Jun 2022	17 Jul 2025	2
Cowthorpe	23 Aug 2002	7 Jul 2025	18
Kirk Hammerton - Fry Survey	20 Sept 1984	14 Aug 2024	19
Ribston Park (NEW 2018)	30 Jun 2022	30 Jun 2022	1
Nun Monkton	27 Aug 2003	22 Jul 2019	13
Kirk Hammerton	21 Aug 2002	23 Jun 2016	12
Knaresborough Bypass	22 Jun 2016	22 Jun 2016	1
Goldsborough	22 Jul 2015	22 Jul 2015	1
Ribston Park	26 Aug 2003	26 Jun 2015	5
Scotton Mill	14 Jun 2005	12 Jun 2008	2

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

1984–2025

Survey records by year

Each bar shows how many survey visits recorded barbel that year.

184

185

186

087

088

089

090

191

092

093

094

195

096

197

198

199

100

001

302

503

504

505

106

307

108

309

310

311

412

413

414

515

416

217

118

219

020

021

322

023

224

225

Fish measured by surveyors

Measured length distribution

See how the 606 measured fish were spread across different length ranges.

Smallest: 1.7 cm
Lower quarter: 2.8 cm
Median: 4.4 cm
Upper quarter: 23.6 cm
Largest: 70.1 cm

0–99 mm

416

100–199 mm

200–299 mm

300–399 mm

400–499 mm

500–599 mm

600–699 mm

700–799 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 9 barbel. This is a subset of the measured fish and may not represent the whole population.

Lightest: 9 oz (0.255 kg)
Lower quarter: 2 lb 11.4 oz (1.23 kg)
Median: 3 lb 12.7 oz (1.72 kg)
Upper quarter: 4 lb 3.2 oz (1.91 kg)
Heaviest: 4 lb 15.7 oz (2.26 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 Nidd

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

Minnow Bullhead Stone loach Grayling Brown / sea trout European eel

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 →